WO2023228875A1 - Resin composition, molded body and carbon black dispersant - Google Patents
Resin composition, molded body and carbon black dispersant Download PDFInfo
- Publication number
- WO2023228875A1 WO2023228875A1 PCT/JP2023/018701 JP2023018701W WO2023228875A1 WO 2023228875 A1 WO2023228875 A1 WO 2023228875A1 JP 2023018701 W JP2023018701 W JP 2023018701W WO 2023228875 A1 WO2023228875 A1 WO 2023228875A1
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- WO
- WIPO (PCT)
- Prior art keywords
- aromatic polysulfone
- carbon black
- resin composition
- less
- mol
- Prior art date
Links
- 239000006229 carbon black Substances 0.000 title claims abstract description 188
- 239000011342 resin composition Substances 0.000 title claims abstract description 151
- 239000002270 dispersing agent Substances 0.000 title claims description 15
- 125000003118 aryl group Chemical group 0.000 claims abstract description 258
- 229920002492 poly(sulfone) Polymers 0.000 claims abstract description 252
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 89
- 229920005989 resin Polymers 0.000 claims description 74
- 239000011347 resin Substances 0.000 claims description 74
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims description 25
- 229920005992 thermoplastic resin Polymers 0.000 claims description 20
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 125000005843 halogen group Chemical group 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 10
- 125000003277 amino group Chemical group 0.000 claims description 7
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 7
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 7
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 claims description 7
- 239000006232 furnace black Substances 0.000 claims description 6
- 239000003273 ketjen black Substances 0.000 claims description 4
- 235000019241 carbon black Nutrition 0.000 description 179
- 238000012360 testing method Methods 0.000 description 37
- 238000002347 injection Methods 0.000 description 25
- 239000007924 injection Substances 0.000 description 25
- 230000005484 gravity Effects 0.000 description 23
- 239000004695 Polyether sulfone Substances 0.000 description 21
- 229920006393 polyether sulfone Polymers 0.000 description 21
- 238000005299 abrasion Methods 0.000 description 19
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 17
- 150000001875 compounds Chemical class 0.000 description 16
- 238000005259 measurement Methods 0.000 description 14
- -1 ether sulfone Chemical class 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- 239000007788 liquid Substances 0.000 description 11
- 238000001746 injection moulding Methods 0.000 description 10
- 230000003287 optical effect Effects 0.000 description 10
- 239000013068 control sample Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 8
- 239000004973 liquid crystal related substance Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000012778 molding material Substances 0.000 description 8
- 239000000523 sample Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 7
- 239000008188 pellet Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000004898 kneading Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 229920000412 polyarylene Polymers 0.000 description 5
- 239000011164 primary particle Substances 0.000 description 5
- 238000009864 tensile test Methods 0.000 description 5
- 229920000491 Polyphenylsulfone Polymers 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000001878 scanning electron micrograph Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 4
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 description 3
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 3
- 238000009757 thermoplastic moulding Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 125000001118 alkylidene group Chemical group 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002151 riboflavin Substances 0.000 description 2
- 102200082816 rs34868397 Human genes 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920006012 semi-aromatic polyamide Polymers 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 125000002030 1,2-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([*:2])C([H])=C1[H] 0.000 description 1
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 1
- NYCCIHSMVNRABA-UHFFFAOYSA-N 1,3-diethylimidazolidin-2-one Chemical compound CCN1CCN(CC)C1=O NYCCIHSMVNRABA-UHFFFAOYSA-N 0.000 description 1
- 125000001989 1,3-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([H])C([*:2])=C1[H] 0.000 description 1
- MBDUIEKYVPVZJH-UHFFFAOYSA-N 1-ethylsulfonylethane Chemical compound CCS(=O)(=O)CC MBDUIEKYVPVZJH-UHFFFAOYSA-N 0.000 description 1
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 description 1
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 description 1
- ZDULHUHNYHJYKA-UHFFFAOYSA-N 2-propan-2-ylsulfonylpropane Chemical compound CC(C)S(=O)(=O)C(C)C ZDULHUHNYHJYKA-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 206010003549 asthenia Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- HFNQLYDPNAZRCH-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O.OC(O)=O HFNQLYDPNAZRCH-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000006231 channel black Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 229920006039 crystalline polyamide Polymers 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000000219 ethylidene group Chemical group [H]C(=[*])C([H])([H])[H] 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012765 fibrous filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000000654 isopropylidene group Chemical group C(C)(C)=* 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 125000000040 m-tolyl group Chemical group [H]C1=C([H])C(*)=C([H])C(=C1[H])C([H])([H])[H] 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- NBTOZLQBSIZIKS-UHFFFAOYSA-N methoxide Chemical compound [O-]C NBTOZLQBSIZIKS-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 125000003261 o-tolyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])C([H])([H])[H] 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 238000003918 potentiometric titration Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/06—Polysulfones; Polyethersulfones
Definitions
- the present invention relates to a resin composition, a molded article, and a carbon black dispersant.
- This application claims priority based on Japanese Patent Application No. 2022-086780 filed in Japan on May 27, 2022, the contents of which are incorporated herein.
- additives are sometimes contained in resin compositions for the purpose of modifying or improving the properties of the composition.
- Patent Document 1 describes at least one polyarylene ether (A1) having on average at most 0.1 mol of phenolic end groups per polymer chain and Thermoplastic molding compositions of at least one polyarylene ether (A2) having at least 1.5 mol of phenolic end groups are disclosed.
- the polyarylene ether of components (A1) and (A2) is polyarylene ether sulfone, and at least one fibrous or particulate filler and, optionally, another additive. and/or processing aids, but polyarylene sulfide is excluded from the components of the thermoplastic molding composition.
- the present invention has been made to solve the above-mentioned problems, and provides a resin composition containing carbon black (B) with improved durability as measured by tensile fracture energy.
- the purpose is to provide
- the present inventors found that in a resin composition containing aromatic polysulfone (A) and carbon black (B), the distance between the centers of gravity between regions of carbon black (B)
- the present inventors have discovered that by setting the coefficient of variation to a predetermined value, the durability of the resin composition, as measured by tensile fracture energy, can be improved, and the present invention has been completed.
- the present invention has the following aspects.
- the aromatic polysulfone (A) has a hydroxyl group in the molecule, A resin composition in which the coefficient of variation of the center-to-gravity distance between regions of the carbon black (B) is 0.52 or less.
- the content of the hydroxyl groups of the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A). The resin composition described.
- the aromatic polysulfone (A) has a hydroxyl group in the molecule,
- the resin composition, wherein the content of the hydroxyl groups in the aromatic polysulfone (A) is 1 ⁇ 10 ⁇ 5 mol or more and 40 ⁇ 10 ⁇ 5 mol or less per 1 g of the aromatic polysulfone (A).
- ⁇ 4> The ratio of the content of the aromatic polysulfone (A) having a hydroxyl group content of 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g to the total mass of the resin composition,
- ⁇ 5> Any one of ⁇ 1> to ⁇ 4> above, wherein the content ratio of the carbon black (B) to the total weight of the resin composition is 0.01% by mass or more and less than 20% by mass.
- the hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group.
- a resin (C) other than the aromatic polysulfone (A) contains a resin (C) other than the aromatic polysulfone (A),
- the resin (C) is a thermoplastic resin.
- the thermoplastic resin is an aromatic polysulfone that does not fall under the aromatic polysulfone (A).
- ⁇ 10> The resin composition according to any one of ⁇ 1> to ⁇ 9> above, wherein the carbon black (B) is furnace black or Ketjen black.
- ⁇ 11> A molded article comprising the resin composition according to any one of ⁇ 1> to ⁇ 10>.
- ⁇ 12> Contains an aromatic polysulfone (A), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the content of the hydroxyl group of the aromatic polysulfone (A) is equal to or less than that of the aromatic polysulfone (A).
- a carbon black dispersant having an amount of 1 ⁇ 10 ⁇ 5 mol or more and 40 ⁇ 10 ⁇ 5 mol or less per 1 g.
- a resin composition containing aromatic polysulfone (A) and carbon black (B) that has improved durability as measured by tensile fracture energy. Further, according to the present invention, a molded article containing the resin composition can be provided. Moreover, according to the present invention, a carbon black dispersant that improves the dispersibility of carbon black (B) can be provided.
- the resin composition of the present embodiment includes aromatic polysulfone (A) and carbon black (B), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the carbon black (B) has a hydroxyl group.
- the coefficient of variation of the distance between the centers of gravity between regions is 0.52 or less.
- the resin composition of the embodiment that satisfies the above coefficient of variation of 0.52 or less has improved durability as measured by tensile fracture energy, compared to the resin composition that does not satisfy the coefficient of variation of 0.52 or less. .
- the resin compositions of the embodiments in which the above coefficient of variation satisfies 0.52 or less have higher wear resistance as measured by specific wear amount than resin compositions in which the coefficient of variation does not satisfy 0.52 or less. Improved.
- the resin composition of the embodiment can further contain a resin (C) other than the aromatic polysulfone (A).
- resin (C) other than the aromatic polysulfone (A) may be simply referred to as resin (C).
- the content of the hydroxyl groups in the aromatic polysulfone (A) is preferably 1 ⁇ 10 ⁇ 5 mol or more and 40 ⁇ 10 ⁇ 5 mol or less per 1 g of the aromatic polysulfone (A).
- the resin (C) is an aromatic polysulfone
- the aromatic polysulfone having a hydroxyl group content of 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of aromatic polysulfone is used as the aromatic polysulfone.
- aromatic polysulfone (c) (in this case, aromatic polysulfone (c) is resin (C ).
- the resin composition of the present embodiment contains aromatic polysulfone (A), carbon black (B), resin (C) that may be contained as necessary, and other optional components. can be contained so that the total content (mass%) does not exceed the total mass (100 mass%) of the resin composition.
- the aromatic polysulfone (A), carbon black (B), resin (C), and optional components are contained in the form of each other's compositions or reactants. Good too.
- aromatic polysulfone in aromatic polysulfone (A) refers to a divalent aromatic group (a residue formed by removing two hydrogen atoms bonded to the aromatic ring from an aromatic compound). , a resin having repeating units containing an ether bond (-O-) and a sulfonyl group (-SO 2 -).
- the aromatic polysulfone (A) blended into the resin composition of the embodiment has a hydroxyl group in its molecule.
- the hydroxyl group may be located at the end of the main chain of the aromatic polysulfone. That is, the aromatic polysulfone (A) may have at least one terminal hydroxyl group at the end of the main chain of the aromatic polysulfone.
- the content of the hydroxyl groups in the aromatic polysulfone (A) may be 1 x 10 -5 mol or more and 40 x 10 -5 mol or less, and 6 x 10 -5 mol or more per 1 g of the aromatic polysulfone (A).
- the amount may be 30 ⁇ 10 ⁇ 5 mol or less, 8 ⁇ 10 ⁇ 5 mol or more and 20 ⁇ 10 ⁇ 5 mol or less, and 8 ⁇ 10 ⁇ 5 mol or more and 10 ⁇ 10 ⁇ 5 mol or less.
- the aromatic polysulfone (A) containing hydroxyl groups at or above the above lower limit is excellent in improving the durability and abrasion resistance. According to the aromatic polysulfone (A) containing hydroxyl groups below the above upper limit, the viscosity is unlikely to increase due to the inclusion of the aromatic polysulfone (A), and stable processing of the resin composition is possible.
- aromatic polysulfone has excellent heat resistance and chemical resistance, it is preferable that it has a repeating unit represented by the following formula (1) (hereinafter sometimes referred to as “repeat unit (1)”).
- repeating unit (1) there are also repeating units represented by the following formula (2) (hereinafter sometimes referred to as “repeating units (2)") and repeating units represented by the following formula (3). It may contain one or more types of other repeating units such as units (hereinafter sometimes referred to as “repeat units (3)").
- Ph 1 and Ph 2 each independently represent a phenylene group.
- the hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group.
- Ph 3 and Ph 4 each independently represent a phenylene group.
- the hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group.
- R represents an alkylidene group, an oxygen atom or a sulfur atom.
- Ph 5 represents a phenylene group.
- the hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group.
- n represents an integer from 1 to 3. When n is 2 or more, the plurality of Ph 5 's may be the same or different from each other.
- the phenylene group represented by any one of Ph 1 to Ph 5 may be a p-phenylene group, a m-phenylene group, or an o-phenylene group, but - A phenylene group is preferred.
- the number of carbon atoms in the alkyl group which may be substituted with the hydrogen atom in the phenylene group is preferably 1 to 10. Specific examples include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, s-butyl group, t-butyl group, n-hexyl group, 2-ethylhexyl group, n-octyl group. group, n-decyl group, etc.
- the number of carbon atoms is preferably 6 to 20. Specific examples include phenyl group, o-tolyl group, m-tolyl group, p-tolyl group, 1-naphthyl group, 2-naphthyl group, and the like.
- the number is preferably 2 or less, more preferably 1, for each phenylene group independently. Among the above, it is preferable that the hydrogen atom in the phenylene group is not substituted.
- the alkylidene group represented by R preferably has 1 to 5 carbon atoms. Specific examples include methylene group, ethylidene group, isopropylidene group, and 1-butylidene group.
- the aromatic polysulfone preferably has the repeating unit (1) in an amount of 50 mol% or more, more preferably 80 mol% or more, based on the total number of moles (100 mol%) of all repeating units. It is more preferable to have substantially only the repeating unit (1). Note that the aromatic polysulfone may have two or more types of repeating units (1) to (3), each independently.
- Aromatic polysulfone can be produced by polycondensing a dihalogenosulfone compound and a dihydroxy compound corresponding to the repeating units that constitute the aromatic polysulfone.
- the resin having the repeating unit (1) uses a compound represented by the following formula (4) (hereinafter also referred to as "compound (4)”) as the dihalogenosulfone compound, and a compound represented by the following formula (5) as the dihydroxy compound. It can be produced by using a compound represented by:
- a resin having repeating units (1) and repeating units (2) can be produced by using compound (4) as the dihalogenosulfone compound and using a compound represented by the following formula (6) as the dihydroxy compound. can do.
- a resin having repeating units (1) and repeating units (3) can be produced by using compound (4) as the dihalogenosulfone compound and using a compound represented by the following formula (7) as the dihydroxy compound. can do.
- OH group in the above formulas (5) to (7) corresponds to the hydroxyl group located at the end of the main chain of the aromatic polysulfone (A).
- the polycondensation of aromatic polysulfone is preferably carried out in a solvent using an alkali metal salt of carbonic acid.
- the alkali metal salt of carbonic acid may be a carbonate which is a normal salt, a bicarbonate (bicarbonate) which is an acid salt, or a mixture of both.
- carbonate sodium carbonate and potassium carbonate are preferably used, and as the hydrogen carbonate, sodium bicarbonate and potassium bicarbonate are preferably used.
- organic polar solvents are preferably used.
- Specific examples include dimethyl sulfoxide, 1-methyl-2-pyrrolidone, sulfolane (1,1-dioxothyrane), 1,3-dimethyl-2-imidazolidinone, 1,3-diethyl-2-imidazolidinone, dimethyl
- Examples include sulfone, diethyl sulfone, diisopropylsulfone, diphenyl sulfone, and the like.
- the reduced viscosity of aromatic polysulfone (A) can be an indicator of molecular weight, and is preferably 0.20 dL/g or more, more preferably 0.25 dL/g or more, and 0.30 dL/g. It is more preferably at least 0.35 dL/g, and even more preferably at least 0.35 dL/g. It is preferable that the reduced viscosity of the aromatic polysulfone (A) is equal to or higher than the above lower limit because the molded article of the resin composition of the embodiment has good durability and abrasion resistance.
- the upper limit of the reduced viscosity of the aromatic polysulfone (A) is not particularly limited, but may be 0.60 dL/g or less, and may be 0.55 dL/g or less. It is preferable that the reduced viscosity of the aromatic polysulfone (A) is below the above upper limit because it is easy to set the content of hydroxyl groups in the aromatic polysulfone (A) to a desired value.
- the numerical range of the reduced viscosity of the aromatic polysulfone (A) may be 0.20 dL/g or more and 0.60 dL/g or less, and 0.25 dL/g or more and 0.60 dL/g or less. may be 0.30 dL/g or more and 0.60 dL/g or less, 0.35 dL/g or more and 0.55 dL/g or less, and 0.45 dL/g or more and 0.55 dL/g or less. It's good.
- the reduced viscosity (Rv) of aromatic polysulfone employs a value measured by the following method.
- the resin composition of the embodiment has a hydroxyl group content of 1 ⁇ 10 ⁇ 5 mol or more per 1 g based on the total mass (100% by mass) of the resin composition. It may contain 0.001% by mass or more and less than 30% by mass, and may contain 0.01% by mass or more and less than 30% by mass, and 0.01% by mass or more and less than 30% by mass of aromatic polysulfone (A) which is 40 ⁇ 10 -5 mol or less. ⁇ 20% by mass may be contained, 0.1 to 20% by mass may be contained, 0.5 to 30% by mass may be contained, 0.5 to 20% by mass may be contained, 0.5 to 15% by mass may be contained. The content may be 0.5 to 10 mass %, and 0.5 to 8 mass %.
- the resin composition of the embodiment has hydroxyl groups per gram of the total amount (100% by mass) of aromatic polysulfone (A), carbon black (B), and resin (C) in the resin composition.
- the resin composition of the embodiment contains carbon black (B).
- the coefficient of variation expressed as standard deviation/average of the distance between the centers of gravity between regions of the carbon black (B) may be 0.52 or less, preferably 0.50 or less, and more preferably 0.49 or less. , 0.48 or less is more preferable, and 0.45 or less is even more preferable.
- the lower limit of the coefficient of variation of the carbon black (B) is not particularly limited, but may be, for example, 0.10, 0.20, or 0.30. , 0.35, and 0.40. That is, the coefficient of variation of the carbon black (B) may be, for example, 0.10 or more, 0.20 or more, 0.30 or more, or 0.35 or more. It may be 0.40 or more.
- the numerical range of the variation coefficient of the carbon black (B) may be 0.10 or more and 0.52 or less, 0.20 or more and 0.50 or less, and 0.30 or more and 0.30 or more. It may be 0.49 or less, 0.35 or more and 0.48 or less, and 0.40 or more and 0.45 or less.
- the resin composition of the embodiment in which the coefficient of variation of carbon black (B) is equal to or less than the upper limit has an improved tensile fracture energy value.
- the resin composition of the embodiment in which the coefficient of variation of carbon black (B) is equal to or less than the upper limit has improved wear resistance.
- the coefficient of variation is an index representing the variation in the distance between the centers of gravity between regions of the carbon black (B), and the smaller the value of the coefficient of variation, the smaller the degree of variation in the distance between the centers of gravity.
- the coefficient of variation is calculated by dividing the standard deviation of the distance between the centers of gravity between the regions of carbon black (B) by the average value of the distance between the centers of gravity between the regions of carbon black (B), that is, the standard deviation/average value. expressed. By dividing the standard deviation by the average value, the influence of the magnitude of the distance between the centers of gravity can be eliminated, and the degree of dispersion can be evaluated with high accuracy.
- the distance between the centers of gravity between regions of carbon black (B) is measured as the distance between the centers of gravity of the regions of carbon black scattered in a two-dimensional observation image of the resin composition of the embodiment. That is, the distance between the centers of gravity between regions of carbon black (B) may be the distance between the centers of gravity of the regions of carbon black (B).
- the coefficient of variation of the center-to-gravity distance between regions of carbon black (B) is obtained by the following observation images and analysis of a test piece of the resin composition.
- Test piece A type specified in ISO 527 is injection molded using the resin composition as a molding material.
- the injection molding conditions were: cylinder temperature 350 to 400°C, mold temperature 150°C, back pressure 12 MPa, screw rotation speed 80 rpm, injection pressure 120 MPa, injection speed 24 mm/sec, injection time 2 seconds, holding pressure 100 MPa, cooling time 25. Seconds.
- the center part of the obtained test piece was cut, and the cut surface was polished with a polisher (e.g., Refine Polisher, manufactured by Kasai Shoko Co., Ltd.), and then polished with a gold evaporation device (e.g., ion sputter E101, manufactured by Hitachi, Ltd.).
- a polisher e.g., Refine Polisher, manufactured by Kasai Shoko Co., Ltd.
- a gold evaporation device e.g., ion sputter E101, manufactured by Hitachi, Ltd.
- Gold evaporation is carried out using a scanning electron microscope (for example, Model S-2300, Hitachi Scanning Electron Microscope) at a magnification of 3000 times to obtain a cross-sectional image.
- the carbon black area may be a portion occupied by primary aggregates (aggregates) in which primary particles of carbon black aggregate, or may be secondary aggregates (agglomerates). , a portion occupied by a higher-order form such as powder (loose) may also be used.
- the minimum value of the circular area equivalent diameter (diameter converted to a perfect circle with the same area) of the area of carbon black to be analyzed in the above two-dimensional observation image may be 0.01 ⁇ m, and may be 0.03 ⁇ m. It may well be 0.1 ⁇ m. That is, the diameter equivalent to a circular area of the carbon black region may be 0.01 ⁇ m or more, 0.03 ⁇ m or more, or 0.1 ⁇ m or more.
- the average diameter of the circular area equivalent diameter (diameter converted to a perfect circle with the same area) of the carbon black region obtained from the above two-dimensional observation image may be 0.01 to 100 ⁇ m, and may be 0.1 to 100 ⁇ m. It may be 50 ⁇ m, and may be 0.5-30 ⁇ m.
- pellets of the resin composition of the embodiment can be mentioned.
- the value of the coefficient of variation of the center-to-gravity distance between regions of carbon black (B) in the resin composition does not basically change before and after injection molding of the above test piece. Therefore, although it is mentioned above that an injection molded test piece is used as the observation target for obtaining the coefficient of variation in a resin composition, it is difficult to directly obtain the coefficient of variation of the resin composition that you want to understand. Therefore, for example, the pellets of the resin composition itself can be the object of observation.
- pellets of the resin composition and molded products thereof are also included in the concept of the resin composition of the present embodiment. .
- Carbon black is a fine particle component mainly composed of carbon, and examples thereof include furnace black, Ketjen black, channel black, acetylene black, and lamp black. Furnace black or Ketjen black is preferable, and furnace black is more preferable. .
- the carbon black may be conductive carbon black or may be coloring carbon black used as a black pigment.
- the primary particle size of carbon black may be, for example, 100 nm or less, 5 to 100 nm, or 10 to 60 nm.
- the primary particle diameter of carbon black is determined by observing carbon black at a magnification of 20,000 times using a transmission electron microscope, and measuring the diameter of the primary particles of 1,000 arbitrary carbon black particles (the longest diameter for non-spherical particles). It can be calculated by finding the numerical average value.
- the DBP (dibutyl phthalate) oil absorption amount of carbon black may be, for example, 30 to 550 mL/100 g, or 50 to 500 mL/100 g.
- DBP oil absorption can be measured in accordance with JIS K 6217-4.
- the pH of carbon black may be 6.0 to 10.0, or 7.0 to 9.0.
- the pH of carbon black can be measured in accordance with JIS K6221-1982.
- the amount of volatile components of carbon black may be 0.5% by weight or more and 5% by weight or less, or 1% by weight or more and 5% by weight or less.
- the amount of volatile components reflects the amount of functional groups on the surface of carbon black. It is considered that carbon black whose volatile component amount is within the above numerical range exhibits better dispersibility improvement effect of carbon black due to interaction with the hydroxyl group of aromatic polysulfone (A). .
- the volatile components of carbon black are components generated when carbon black is placed in a crucible and heated at 950°C for 7 minutes, and the surface functional groups of carbon black are desorbed, such as CO, CO 2 , H2O , and the like.
- the specific surface area of carbon black may be 20 to 1500 m 2 /g, or 100 to 500 m 2 /g. Since the smaller the value of the specific surface area, the smaller the cohesive force between carbon blacks, it is thought that carbon blacks within the above numerical range can better exhibit the effect of improving the dispersibility of carbon black.
- the specific surface area of carbon black refers to the nitrogen adsorption specific surface area.
- gas adhering to the sample surface is removed in advance, nitrogen is adsorbed onto the sample at liquid nitrogen temperature, and the specific surface area can be calculated from the amount of adsorption.
- nitrogen gas is adsorbed at liquid nitrogen temperature using a BET specific surface area measuring device (for example, AccuSorb 2100E manufactured by Micromeritics), the amount of adsorption is measured, and the BET method is performed. It can be calculated by
- the content of carbon black (B) with respect to 100 parts by mass of aromatic polysulfone (A) contained in the resin composition of the embodiment may be 0.1 to 5000 parts by mass, and may be 0.5 to 4000 parts by mass. parts, may be 0.5 to 3000 parts by weight, and may be 0.5 to 500 parts by weight.
- the content ratio of the carbon black (B) to the total mass (100 mass%) of the resin composition is preferably 0.01 mass% or more and less than 20 mass%, and 0.1 mass% or more and 15 mass% or less. is more preferable, more preferably 0.2% by mass or more and 10% by mass or less, particularly preferably 0.2% by mass or more and 8% by mass or less.
- the resin composition of the embodiment has a total of aromatic polysulfone (A), carbon black (B), and resin (C) in the resin composition ( 100% by mass)
- the content ratio of the carbon black (B) is preferably 0.01% by mass or more and less than 20% by mass, more preferably 0.1% by mass or more and 15% by mass or less, and 0.1% by mass or more and less than 15% by mass. It is more preferably 2% by mass or more and 10% by mass or less, and particularly preferably 0.2% by mass or more and 8% by mass or less.
- the resin (C) is not particularly limited as long as it is a resin that does not fall under the aromatic polysulfone (A), and is preferably a thermoplastic resin.
- thermoplastic resin is a resin that reversibly softens by heating and solidifies by cooling when heating and cooling are repeated.
- Thermoplastic resins can be roughly classified into liquid crystalline thermoplastic resins (C1), crystalline thermoplastic resins (C2), and amorphous thermoplastic resins (C3).
- the liquid crystal thermoplastic resin (C1) is a resin that exhibits optical anisotropy when melted and forms an anisotropic melt at a temperature of 450° C. or lower. This optical anisotropy can be confirmed by a normal polarization test method using crossed polarizers.
- the liquid crystalline thermoplastic resin (C1) has an elongated and flat molecular shape, and has highly rigid molecular chains along the long molecular chains (this highly rigid molecular chain is usually called a "mesogenic group"). It has such a mesogenic group in either the polymer main chain or side chain, or both, but if higher heat resistance is desired, it has a mesogenic group in the polymer main chain. It is preferable.
- liquid crystal thermoplastic resin (C1) examples include liquid crystal polyester, liquid crystal polyester amide, liquid crystal polyester ether, liquid crystal polyester carbonate, liquid crystal polyester imide, and liquid crystal polyamide.
- liquid crystalline polyester, liquid crystalline polyesteramide, and liquid crystalline polyamide are preferable because they yield a resin molded product with high strength, and liquid crystalline polyester and liquid crystalline polyesteramide are preferred because they yield a molded product with lower water absorption. is preferred.
- the crystalline thermoplastic resin (C2) refers to a resin in which the molecular structure includes a mixture of crystalline regions in which long chain molecules are regularly arranged and non-crystalline regions in which they are not regularly arranged.
- Examples include polyethylene, polypropylene, polyacetal, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyimide (PI), polyetheretherketone (PEEK), polyethernitrile (PEN),
- Examples include aliphatic polyamide, semi-aromatic polyamide, and aromatic polyamide.
- Amorphous thermoplastic resin (C3) has substantially no crystalline regions in which long chain molecules are regularly arranged in its molecular structure, and only non-crystalline regions that are not regularly arranged. It is made up of resin. Examples include polysulfone resin, polystyrene, polycarbonate, polyetherimide, and polyamideimide.
- the resin (C) may be a resin that does not fall under the above-mentioned aromatic polysulfone, or may be a thermoplastic resin that does not fall under the aromatic polysulfone and does not contain a hydroxyl group in its molecule.
- the resin (C) is preferably a polysulfone-based resin since it is considered to have good affinity with the aromatic polysulfone (A).
- polysulfone resin refers to a resin having a repeating unit containing a divalent aromatic group and a sulfonyl group (-SO 2 -).
- divalent aromatic group the phenylene group exemplified in the repeating unit (1) is preferable, and the hydrogen atoms in the phenylene group are each independently an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group. , an amino group, a carboxyl group, or a hydroxyl group.
- the polysulfone resin the above-mentioned aromatic polysulfone can be exemplified.
- the resin (C) includes aromatic polysulfones (c) (including divalent aromatic groups, ether bonds (-O-), and sulfonyl groups) that do not fall under the aromatic polysulfones (A).
- aromatic polysulfones (c) including divalent aromatic groups, ether bonds (-O-), and sulfonyl groups
- a resin having a repeating unit containing (-SO 2 -)) is preferred.
- the hydroxyl group content of the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A).
- the aromatic polysulfone (c) as the resin (C) which does not correspond to the aromatic polysulfone (A) means that the content of hydroxyl groups in the molecule of the aromatic polysulfone (c) is higher than that of the aromatic polysulfone (c). ) Aromatic polysulfone with less than 1 ⁇ 10 ⁇ 5 moles per gram.
- An example of the resin composition of the present embodiment includes aromatic polysulfone (A), carbon black (B), and aromatic polysulfone (c) other than the aromatic polysulfone (A), and the aromatic polysulfone (A) has a hydroxyl group in its molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is 1 ⁇ 10 ⁇ 5 mol or more and 40 ⁇ 10 ⁇ 5 mol or less per 1 g of the aromatic polysulfone (A).
- the content of the hydroxyl groups in the aromatic polysulfone (c) is less than 1 ⁇ 10 ⁇ 5 mol per 1 g of the aromatic polysulfone (c), and the distance between the centers of gravity between the regions of the carbon black (B) is Examples include resin compositions having a coefficient of variation of 0.52 or less.
- the content of the hydroxyl groups in the aromatic polysulfone (c) is less than 1 x 10 -5 mol per 1 g of the aromatic polysulfone (c), and 5 x 10 - It may be 6 mol or less, it may be 3 ⁇ 10 ⁇ 6 mol or less, and it may be 2 ⁇ 10 ⁇ 6 mol or less.
- the combination of the hydroxyl group contents of the aromatic polysulfone (A) and the aromatic polysulfone (c) is as follows:
- the content of hydroxyl groups in the aromatic polysulfone (A) is 6 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of aromatic polysulfone (A), and the content of hydroxyl groups in the aromatic polysulfone (c) is , may be 5 ⁇ 10 ⁇ 6 mol or less per 1 g of aromatic polysulfone (c),
- the content of hydroxyl groups in the aromatic polysulfone (A) is 8 x 10 -5 mol or more and 20 x 10 -5 mol or less per 1 g of aromatic polysulfone (A), and the content of hydroxyl groups in the aromatic polysulfone (c) is , may be 3 ⁇ 10 ⁇ 6 mol or less per 1 g of aromatic polysulfone (c),
- the content of the hydroxyl groups in the resin (C) may be less than 1 ⁇ 10 ⁇ 5 mol, and may be 5 ⁇ 10 ⁇ 6 mol or less, and may be 3 ⁇ 10 ⁇ 6 mol or less per 1 g of the resin (C) . It may be 6 moles or less, and may be 2 ⁇ 10 ⁇ 6 moles or less.
- the aromatic polysulfone (c) that does not fall under the aromatic polysulfone (A) is preferably at least one selected from the group consisting of polyethersulfone, polysulfone, modified polysulfone, and polyphenylsulfone, and polyethersulfone or More preferably, it is polyphenylsulfone, and even more preferably polyethersulfone.
- examples of the reduced viscosity of the aromatic polysulfone (c) include those similar to those of the aromatic polysulfone (A) described above. From the viewpoint of further improving the above-mentioned durability and abrasion resistance, the difference in reduced viscosity between aromatic polysulfone (c) and aromatic polysulfone (A) is, for example, 0.12 dL/g or less. It is preferable that there be.
- the resin (C) is at least one selected from the group consisting of polyether sulfone, polysulfone, modified polysulfone, polyphenylsulfone, liquid crystalline polyester, polyether ether ketone, and semi-aromatic polyamide. It is preferable that
- the aromatic polysulfone (A) is a polyether sulfone having only the above-mentioned repeating unit (1) as a repeating unit
- the resin (C) is a polyethersulfone having only the above-mentioned repeating unit (1) as a repeating unit.
- Ethersulfone (in formula (1), Ph 1 and Ph 2 each independently represent a phenylene group.
- the hydrogen atoms in the phenylene group each independently represent an alkyl group, an aryl group, a halogen atom, a sulfo group, (Optionally substituted with a nitro group, an amino group, a carboxyl group, or a hydroxyl group).
- the aromatic polysulfone (A) is a polyether sulfone having only the above-mentioned repeating unit (1) as a repeating unit, and the resin (C) has only the following repeating unit (8) as a repeating unit.
- An example of the combination is a polyphenylsulfone having the following.
- Ph 6 , Ph 7 , Ph 8 and Ph 9 each independently represent a phenylene group.
- the hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, or a halogen atom.
- the content ratio of the resin (C) to the total mass (100 mass%) of the resin composition is preferably 50 mass% or more.
- the resin composition of the embodiment based on the total mass (100% by mass) of the resin composition, Contains aromatic polysulfone (A) from 0.01% by mass to less than 30% by mass, carbon black (B) from 0.01% by mass to less than 20% by mass, and resin (C) from 50% by mass to 99% by mass. May contain up to 98% by mass, Contains aromatic polysulfone (A) from 0.5% by mass to less than 30% by mass, contains carbon black (B) from 0.1% by mass to 15% by mass, and contains resin (C) from 55% by mass to 99%.
- the resin composition of the embodiment may contain other optional components that do not correspond to aromatic polysulfone (A), carbon black (B), and resin (C), as necessary.
- examples include fillers such as fibrous fillers, plate fillers, spherical fillers, powder fillers, irregularly shaped fillers, and whiskers, as well as colorants, lubricants, various surfactants, antioxidants, heat stabilizers, and ultraviolet rays.
- examples include absorbents and antistatic agents.
- the durability of the resin composition of the embodiment can be determined by the tensile fracture energy measured for the following test piece in the following [Tensile Test]. It can be evaluated that the higher the value of the tensile fracture energy below, the more excellent the durability.
- the tensile fracture energy (J) of this test piece is measured in accordance with ISO527 at a test speed of 5 mm/min at 23° C. and in an atmosphere of 50% relative humidity.
- a Tensilon universal testing machine for example, RTG-1310, manufactured by A&D Co., Ltd.
- the value of the tensile fracture energy measured for the test piece in the above-mentioned [Tensile test] of the resin composition of the embodiment varies greatly depending on the carbon black content. It is preferable to compare and evaluate resin compositions containing carbon black (B) in the same proportion.
- the improvement in durability using tensile fracture energy as an index can be achieved, for example, by comparing a control sample that does not contain aromatic polysulfone (A) and replacing a part of the resin (C) of the control sample with aromatic polysulfone (A). If you prepare a measurement sample containing the sample and set the measured value of the tensile fracture energy of the control sample as 100, you can confirm that the durability has improved by checking that the converted value of the tensile fracture energy of the measurement sample exceeds 100. .
- the converted value of the tensile fracture energy measured for the test piece using the resin composition of the embodiment as the measurement sample is more than 100.
- it may be 105 or more, it may be 120 or more, it may be 150 or more, it may be 200 or more.
- the upper limit of the conversion value is not particularly limited, but may be 500, 400, or 300. That is, the converted value may be 500 or less, 400 or less, or 300 or less.
- An example of the numerical range of the converted value is more than 100 and less than 500, and 105 or more and 500 or less. It may be 120 or more and 500 or less, 150 or more and 400 or less, and 200 or more and 300 or less.
- the abrasion resistance of the resin composition of the embodiment can be indexed by the specific wear amount measured on the following test piece in the following [Abrasion Test]. It can be evaluated that the smaller the value of the specific wear amount below, the more excellent the wear resistance is.
- an injection molding machine for example, injection molding machine SE100EV-A type, manufactured by Sumitomo Heavy Industries, Ltd.
- the cylinder temperature is 360°C at the nozzle, 360°C at the front, and 360°C at the middle (1).
- 360°C, middle (2) 350°C, rear 340°C, mold temperature 150°C, back pressure 5MPa, screw rotation speed 80rpm, injection speed 30mm/s, injection pressure 150MPa, injection time 0.8 seconds, holding pressure 100MPa
- a hollow cylindrical test piece (outer diameter 25.6 mm, inner diameter 20 mm, thickness 20 mm) is obtained under injection conditions with a cooling time of 25 seconds.
- Specific wear amount (mm 3 /kN ⁇ m) is measured using a Suzuki friction and wear tester (for example, Takachiho Seiki, Ring-on-Ring) in a room adjusted to 23° C. under the following conditions. Note that the measurement is performed on five samples, and the average value is taken as the value of the specific wear amount.
- Suzuki friction and wear tester for example, Takachiho Seiki, Ring-on-Ring
- Mating material Hollow cylindrical carbon steel S45C with outer diameter 25.6 mm, inner diameter 20 mm, and thickness 30 mm (Ra: 0.02 mm or less) Test temperature: 23°C Test speed: 30m/min Load: 150N Test time: 50min
- the improvement in wear resistance using the specific wear amount as an index is, for example, a control sample that does not contain aromatic polysulfone (A), and a control sample that does not contain aromatic polysulfone (A) in place of a part of the resin (C) in the control sample.
- the measured value of the specific wear amount of the control sample is set as 100, the improvement in wear resistance is confirmed by the converted value of the specific wear amount of the measurement sample being less than 100. can.
- the converted value of the specific wear amount measured on the test piece using the resin composition of the embodiment as the measurement sample is less than 100. It may be 98 or less, it may be 95 or less, it may be 90 or less.
- the lower limit of the conversion value is not particularly limited, but may be 50, 60, or 70. That is, the converted value may be 50 or more, 60 or more, or 70 or more.
- the numerical range of the converted value it may be 50 or more and less than 100, 50 or more and 98 or less, 60 or more and 95 or less, and 70 or more and 90 or less.
- the resin composition of the embodiment is evaluated in the above [Tensile Test] by having a coefficient of variation of the distance between the centers of gravity between the regions of the carbon black (B) of 0.52 or less. It has excellent durability and abrasion resistance as evaluated by the above-mentioned [abrasion test].
- the resin composition of the embodiment in which the coefficient of variation of carbon black (B) is less than or equal to the above upper limit value has a good dispersion state of carbon black (B) contained therein, and stress concentration due to tension is difficult to occur. It is thought that the value of fracture energy is improved.
- the resin composition of the embodiment is a resin composition containing carbon black (B). This is a very useful product with improved durability and abrasion resistance.
- the durability and abrasion resistance are not improved by containing aromatic polysulfone (A) when the resin composition does not contain carbon black (B). Therefore, by employing a specific combination of aromatic polysulfone (A) and carbon black (B), the durability and abrasion resistance of the resin composition are improved.
- the resin composition of the present embodiment includes aromatic polysulfone (A) and carbon black (B), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the aromatic polysulfone (A)
- the content of the hydroxyl groups in the resin composition is 1 ⁇ 10 ⁇ 5 mol or more and 40 ⁇ 10 ⁇ 5 mol or less per 1 g of the aromatic polysulfone (A).
- the aromatic polysulfone (A), carbon black (B), resin (C) that may be contained as desired, and other optional components are as exemplified in the first embodiment. A detailed explanation of common matters will be omitted.
- An example of the resin composition of the present embodiment includes aromatic polysulfone (A), carbon black (B), and aromatic polysulfone (c) other than the aromatic polysulfone (A), and the aromatic polysulfone (A) has a hydroxyl group in its molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is 1 ⁇ 10 ⁇ 5 mol or more and 40 ⁇ 10 ⁇ 5 mol or less per 1 g of the aromatic polysulfone (A).
- An example of a resin composition is such that the content of the hydroxyl groups in the aromatic polysulfone (c) is less than 1 ⁇ 10 ⁇ 5 mol per 1 g of the aromatic polysulfone (c).
- the content of the hydroxyl groups of the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A),
- the amount may be 6 ⁇ 10 ⁇ 5 mol or more and 30 ⁇ 10 ⁇ 5 mol or less, and may be 8 ⁇ 10 ⁇ 5 mol or more and 20 ⁇ 10 ⁇ 5 mol or less.
- the resin composition of the embodiment containing the aromatic polysulfone (A) having the above-mentioned predetermined amount of hydroxyl groups in the molecule and carbon black (B) is the resin composition when the aromatic polysulfone (A) is not included. Compared to other materials, durability as measured by tensile fracture energy is improved.
- the resin composition of the embodiment containing the aromatic polysulfone (A) having the above-mentioned predetermined amount of hydroxyl groups in the molecule and carbon black (B) does not contain the aromatic polysulfone (A).
- the wear resistance as measured by specific wear amount is improved.
- the above-mentioned durability and abrasion resistance can be improved by employing a specific combination of aromatic polysulfone (A) having a predetermined amount of hydroxyl groups and carbon black (B).
- the resin composition of the embodiment is very useful because the durability and abrasion resistance of the resin composition containing carbon black (B) are improved.
- the resin composition of the second embodiment can easily change the value of the coefficient of variation of carbon black (B) by containing a predetermined amount of aromatic polysulfone (A) having hydroxyl groups. It has the aspect that it can be lowered to
- the resin composition of each of the above embodiments is prepared by mixing aromatic polysulfone (A), carbon black (B), and if necessary, resin (C) and other optional components all at once or in an appropriate order. You can get it.
- the resin composition of the embodiment can be produced.
- the above mixing is preferably melt kneading.
- aromatic polysulfone (A), carbon black (B), and optionally a resin It is preferable to melt and knead C) and other optional components, and the resin composition of the embodiment can be provided in the form of a pelletized form of melt-kneading.
- aromatic polysulfone (A), carbon black (B), and if necessary, resin (C) and other optional components are mixed using a Henschel mixer, tumbler, etc., and the mixture is It may be melt-kneaded using an extruder, or the aromatic polysulfone (A), carbon black (B), and if necessary, resin (C) and other optional components may be separately charged into the extruder. , may be melt-kneaded. In the latter case, the order in which the components are charged into the extruder is arbitrary, but usually the thermoplastic component is sufficiently heated and melted in advance, and then the components other than the thermoplastic component are introduced.
- thermoplastic resin that has been heated and melted in an extruder and kneaded.
- melt kneading does not necessarily need to be performed using an extruder, and a Banbury mixer or a roll can also be used.
- the extruder it is preferable to use a twin-screw kneading extruder.
- the resin composition obtained in this way can be suitably used as a resin composition used for producing a molded article as described below.
- aromatic polysulfone (A), carbon black (B), resin (C), and optional components those known per se can be used, and commercially available products can be obtained or they can be obtained by methods known per se. , can be manufactured.
- the resin composition of the embodiment can be applied to conventionally known melt molding, preferably injection molding, extrusion molding, compression molding, blow molding, vacuum molding, and press molding. It is also applicable to film forming using a T-die, film forming such as inflation forming, and melt spinning.
- the molded article of the embodiment is a molded article containing the resin composition of the embodiment described above.
- a molded article made only of the resin composition of the embodiment can be exemplified.
- An example of the molded object of the embodiment is a molded object produced using the resin composition of the embodiment described above, that is, a molded object formed by molding the resin composition of the embodiment described above.
- the molded article of the embodiment includes aromatic polysulfone (A) and carbon black (B), and the aromatic polysulfone (A) has a hydroxyl group in its molecule, and the area between the regions of the carbon black (B) is
- An example of a molded article is a molded article having a coefficient of variation expressed by standard deviation/average value of the distance between centers of gravity of 0.52 or less.
- An example of a molded article of the embodiment includes aromatic polysulfone (A), carbon black (B), and aromatic polysulfone (c) other than the aromatic polysulfone (A), and includes the aromatic polysulfone (A).
- ) has a hydroxyl group in the molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A).
- the content of the hydroxyl groups in the aromatic polysulfone (c) is less than 1 ⁇ 10 ⁇ 5 mol per 1 g of the aromatic polysulfone (c), and the distance between the centers of gravity between the regions of the carbon black (B) is A molded article having a coefficient of variation expressed as standard deviation/average value of 0.52 or less can be exemplified.
- a molded article of another embodiment includes aromatic polysulfone (A) and carbon black (B), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the aromatic polysulfone (A)
- An example of the molded article is a molded article in which the content of the hydroxyl group is 1 ⁇ 10 ⁇ 5 mol or more and 40 ⁇ 10 ⁇ 5 mol or less per 1 g of the aromatic polysulfone (A).
- An example of a molded article of the embodiment includes aromatic polysulfone (A), carbon black (B), and aromatic polysulfone (c) other than the aromatic polysulfone (A), and includes the aromatic polysulfone (A).
- ) has a hydroxyl group in the molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A).
- the content of the hydroxyl groups in the aromatic polysulfone (c) is less than 1 ⁇ 10 ⁇ 5 mol per 1 g of the aromatic polysulfone (c).
- the molded article of the embodiment includes the resin composition of the embodiment described above, the value of tensile fracture energy is improved and the molded article is excellent in durability.
- the molded article of the embodiment includes the resin composition of the embodiment described above, the specific wear amount value is reduced and the molded article has excellent wear resistance.
- the resin composition of the embodiment can provide the molded article of the embodiment, and since the molded article of the embodiment has an improved value of tensile fracture energy, durability is required. It is suitable as a material for a member to be used. Furthermore, since the molded article of the embodiment can be made to have excellent wear resistance, it is suitable as a material for a member that requires wear resistance. Examples of such parts include various bearings such as sliding bearings and thrust bushes, bearing retainers, gears, chain materials, and electronic and optical parts described below. Taking advantage of these properties, it is suitable for structural members such as electrical/electronic parts and optical parts, mechanical parts, and mechanism parts.
- Examples of such electrical/electronic parts and optical parts include connectors, sockets, relay parts, coil bobbins, optical pickups, oscillators, printed wiring boards, circuit boards, semiconductor packages, computer-related parts, camera barrels, and optical sensor housings. , compact camera module housings (packages and lens barrels), projector optical engine components, IC trays, wafer carriers, and other semiconductor manufacturing process related parts; VTRs, televisions, irons, air conditioners, stereos, vacuum cleaners, refrigerators, rice cookers.
- construction materials such as roofing materials, or materials for civil engineering and construction
- parts for aircraft, spacecraft, and space equipment parts for radiation facilities such as nuclear reactors, parts for marine facilities, cleaning jigs, optical equipment parts, valves, pipes, etc. , nozzles, filters, membranes, medical equipment parts and materials, sensor parts, sanitary supplies, sports goods, and leisure goods.
- the carbon black dispersant of the embodiment contains aromatic polysulfone (A), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is as follows: The amount is 1 ⁇ 10 ⁇ 5 mol or more and 40 ⁇ 10 ⁇ 5 mol or less per 1 g of the aromatic polysulfone (A).
- the content of the hydroxyl groups in the aromatic polysulfone (A) is 1 ⁇ 10 ⁇ 5 mol or more and 40 ⁇ 10 ⁇ 5 mol or less, and 6 ⁇ 10 ⁇ 5 mol or more and 30 ⁇
- the amount may be 10 ⁇ 5 mol or less, and may be 8 ⁇ 10 ⁇ 5 mol or more and 20 ⁇ 10 ⁇ 5 mol or less.
- the dispersant for dispersing carbon black improves the dispersibility of carbon black (B) by being added to a resin composition containing carbon black (B). It can be used as
- One embodiment provides the use of the aromatic polysulfone (A) as a carbon black dispersant.
- One embodiment provides the use of the aromatic polysulfone (A) for improving the dispersibility of carbon black.
- the aromatic polysulfone (A) is used by being added to a resin composition containing a resin (C) and carbon black (B).
- a method for improving the dispersibility of carbon black includes adding the aromatic polysulfone (A) to a resin composition containing resin (C) and carbon black (B).
- a method for improving the dispersibility of carbon black which includes adding the aromatic polysulfone (A) to carbon black (B).
- the above method for improving the dispersibility of carbon black is such that the coefficient of variation of the center-to-center distance between regions of carbon black (B) is 0.52 or less, preferably 0.50 or less, more preferably 0.49 or less, more preferably 0.48 or less, more preferably 0.45 or less, the added aromatic polysulfone (A) and the resin composition containing the resin (C) and carbon black (B), or the added
- the method may include melt-kneading aromatic polysulfone (A) and carbon black (B).
- One embodiment provides the use of the aromatic polysulfone (A) to produce a dispersant for dispersing carbon black that improves the dispersibility of carbon black (B).
- the coefficient of variation of the distance between the centers of gravity of the regions of carbon black (B) explained in the above ⁇ Resin composition>> can be used as an index.
- aromatic polysulfone having a hydroxyl group content of 1 ⁇ 10 ⁇ 5 mol or more and 40 ⁇ 10 ⁇ 5 mol or less per 1 g of aromatic polysulfone is referred to as aromatic polysulfone (A).
- aromatic polysulfone having a hydroxyl group content of less than 1 ⁇ 10 ⁇ 5 mol per gram of aromatic polysulfone is referred to as resin (C) (aromatic polysulfone (c)).
- the tensile fracture energy (J) of this test piece was measured in accordance with ISO527 at a test speed of 5 mm/min at 23° C. and in an atmosphere of 50% relative humidity.
- a Tensilon universal testing machine manufactured by A&D, RTG-1310 was used for the measurement. In addition, the measurement was performed on 5 samples, and the average value was calculated.
- the cylinder temperature was Nozzle 360°C, front 360°C, middle (1) 360°C, middle (2) 350°C, rear 340°C, mold temperature 150°C, back pressure 5MPa, screw rotation speed 80rpm, injection speed 30mm/s, injection
- a hollow cylindrical test piece (outer diameter 25.6 mm, inner diameter 20 mm, thickness 20 mm) was obtained under injection conditions of a pressure of 150 MPa, an injection time of 0.8 seconds, a holding pressure of 100 MPa, and a cooling time of 25 seconds.
- the specific wear amount (mm 3 /kN ⁇ m) was measured using a Suzuki friction and wear tester (Takachiho Seiki, Ring-on-Ring) in a room adjusted to 23° C. under the following conditions. In addition, the measurement was performed on 5 samples, and the average value was calculated.
- the test conditions are as follows.
- Mating material Hollow cylindrical carbon steel S45C with outer diameter 25.6 mm, inner diameter 20 mm, and thickness 30 mm (Ra: 0.02 mm or less) Test temperature: 23°C Test speed: 30m/min Load: 150N Test time: 50min
- the central part of the obtained test piece was cut, and the cut surface was polished with a polisher (Refine Polisher, manufactured by Kasai Shoko Co., Ltd.), and then polished with a gold evaporation device (ion sputter E101, manufactured by Hitachi, Ltd.). Gold was deposited and observed using a scanning electron microscope (SEM, Model S-2300, Hitachi Scanning Electron Microscope) at a magnification of 3000 times to obtain a cross-sectional image.
- a polisher refine Polisher, manufactured by Kasai Shoko Co., Ltd.
- a gold evaporation device ion sputter E101, manufactured by Hitachi, Ltd.
- Figures 1A and 1B show the SEM images (Figure 1A) used to calculate the coefficient of variation of the distance between the centers of gravity between regions of carbon black (B), and the images obtained after binarizing the images using image analysis software.
- FIG. 1B An example of a processed image (FIG. 1B) in which the inter-centroid distance and standard deviation between regions are calculated is shown.
- Tables 1 to 3 show the results of evaluating each item for the resin composition.
- the improvement in the value of tensile fracture energy was determined by comparing Examples and Comparative Examples containing the same proportion of carbon black (Examples 1 to 3 and Comparative Example 1, Example 4 and Comparative Example 2, In Example 5 and Comparative Example 3), this was confirmed by an improvement in the INDEX value (a value exceeding 100) when the tensile fracture energy of the comparative example was set as 100.
- the decrease in the value of specific wear amount was determined by comparing Examples and Comparative Examples containing the same proportion of carbon black (Examples 1 to 3 and Comparative Example 1, and Example 5 and Comparative Example 3). This was confirmed by an improvement in the INDEX value (a value exceeding 100) when the specific wear amount of the comparative example was set to 100.
- a resin composition containing aromatic polysulfone (A) and carbon black (B) that has improved durability as measured by tensile fracture energy. Further, according to the present invention, a molded article containing the resin composition can be provided. Moreover, according to the present invention, a carbon black dispersant that improves the dispersibility of carbon black (B) can be provided.
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Abstract
The present invention relates to: a resin composition which contains an aromatic polysulfone (A) and a carbon black (B), wherein the aromatic polysulfone (A) has a hydroxyl group in each molecule and the coefficient of variation of the distance between centroids among regions of the carbon black (B) is 0.52 or less; a molded body which comprises this resin composition; and the like.
Description
本発明は、樹脂組成物、成形体及びカーボンブラック分散剤に関する。
本願は、２０２２年５月２７日に、日本に出願された特願２０２２－０８６７８０号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a resin composition, a molded article, and a carbon black dispersant.
This application claims priority based on Japanese Patent Application No. 2022-086780 filed in Japan on May 27, 2022, the contents of which are incorporated herein.
本願は、２０２２年５月２７日に、日本に出願された特願２０２２－０８６７８０号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a resin composition, a molded article, and a carbon black dispersant.
This application claims priority based on Japanese Patent Application No. 2022-086780 filed in Japan on May 27, 2022, the contents of which are incorporated herein.
従来、組成物の性質の改変や改良を目的として、樹脂組成物に添加剤が含有される場合がある。
Conventionally, additives are sometimes contained in resin compositions for the purpose of modifying or improving the properties of the composition.
添加剤が含有される例として、特許文献１には、ポリマー鎖あたり平均して多くても０．１モルのフェノール性末端基を有する少なくとも１種のポリアリーレンエーテル（Ａ１）及びポリマー鎖あたり平均して少なくとも１．５モルのフェノール性末端基を有する少なくとも１種のポリアリーレンエーテル（Ａ２）に係る熱可塑性成形材料が示されている。この熱可塑性成形材料において、前記成分（Ａ１）及び（Ａ２）のポリアリーレンエーテルがポリアリーレンエーテルスルホンであり、少なくとも１種の繊維状又は粒子状の充填剤、及び、任意に、別の添加剤及び／又は加工助剤を含むが、ポリアリーレンスルフィドは、前記熱可塑性成形材料の成分から除外されている。
As an example of the inclusion of additives, Patent Document 1 describes at least one polyarylene ether (A1) having on average at most 0.1 mol of phenolic end groups per polymer chain and Thermoplastic molding compositions of at least one polyarylene ether (A2) having at least 1.5 mol of phenolic end groups are disclosed. In this thermoplastic molding material, the polyarylene ether of components (A1) and (A2) is polyarylene ether sulfone, and at least one fibrous or particulate filler and, optionally, another additive. and/or processing aids, but polyarylene sulfide is excluded from the components of the thermoplastic molding composition.
しかし、導電性の付与や着色を目的として、樹脂組成物にカーボンブラックが含有される場合、樹脂組成物の引張特性が低下する場合がある。
However, when carbon black is contained in a resin composition for the purpose of imparting conductivity or coloring, the tensile properties of the resin composition may deteriorate.
本発明は、上記のような問題点を解消するためになされたものであり、カーボンブラック（Ｂ）を含有する樹脂組成物において、引張破壊エネルギーを指標とする耐久性が改善された樹脂組成物を提供することを目的とする。
The present invention has been made to solve the above-mentioned problems, and provides a resin composition containing carbon black (B) with improved durability as measured by tensile fracture energy. The purpose is to provide
本発明者らは、上記課題を解決すべく鋭意検討した結果、芳香族ポリスルホン（Ａ）とカーボンブラック（Ｂ）とを含む樹脂組成物において、カーボンブラック（Ｂ）の領域間の重心間距離の変動係数を所定の値とすることで、引張破壊エネルギーを指標とする樹脂組成物の耐久性が向上されることを見出し、本発明を完成するに至った。
As a result of intensive studies to solve the above problems, the present inventors found that in a resin composition containing aromatic polysulfone (A) and carbon black (B), the distance between the centers of gravity between regions of carbon black (B) The present inventors have discovered that by setting the coefficient of variation to a predetermined value, the durability of the resin composition, as measured by tensile fracture energy, can be improved, and the present invention has been completed.
また、芳香族ポリスルホン（Ａ）とカーボンブラック（Ｂ）とを含む樹脂組成物において、含有される前記芳香族ポリスルホン（Ａ）が有する水酸基の含有量を所定の値とすることでも、引張破壊エネルギーを指標とする樹脂組成物の耐久性が向上されることを見出し、本発明を完成するに至った。
Furthermore, in a resin composition containing aromatic polysulfone (A) and carbon black (B), the tensile fracture energy The present inventors have discovered that the durability of the resin composition is improved based on the index, and have completed the present invention.
すなわち、本発明は以下の態様を有する。
That is, the present invention has the following aspects.
＜１＞ 芳香族ポリスルホン（Ａ）と、
カーボンブラック（Ｂ）と、を含み、
前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、
前記カーボンブラック（Ｂ）の領域間の重心間距離の変動係数が０．５２以下である、樹脂組成物。
＜２＞ 前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、前記＜１＞に記載の樹脂組成物。
＜３＞ 芳香族ポリスルホン（Ａ）と、
カーボンブラック（Ｂ）と、を含み、
前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、
前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、樹脂組成物。
＜４＞ 前記樹脂組成物の総質量に対する、１ｇあたりの水酸基の含有量が１×１０－５モル以上４０×１０－５モル以下である前記芳香族ポリスルホン（Ａ）の含有量の割合が、０．０１質量％以上３０質量％未満である、前記＜１＞～＜３＞のいずれか一つに記載の樹脂組成物。
＜５＞ 前記樹脂組成物の総質量に対する、前記カーボンブラック（Ｂ）の含有量の割合が、０．０１質量％以上２０質量％未満である、前記＜１＞～＜４＞のいずれか一つに記載の樹脂組成物。
＜６＞ 前記芳香族ポリスルホン（Ａ）の還元粘度が０．２０ｄＬ／ｇ以上である、前記＜１＞～＜５＞のいずれか一つに記載の樹脂組成物。
＜７＞ 前記芳香族ポリスルホン（Ａ）が、下記式（１）で表される繰返し単位を有する、前記＜１＞～＜６＞のいずれか一つに記載の樹脂組成物。
（１）－Ｐｈ１－ＳＯ２－Ｐｈ２－Ｏ－
［式中、Ｐｈ１及びＰｈ２は、それぞれ独立に、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基、又は水酸基で置換されていてもよい。］
＜８＞ 更に、前記芳香族ポリスルホン（Ａ）以外の樹脂（Ｃ）を含み、
前記樹脂（Ｃ）が熱可塑性樹脂である、前記＜１＞～＜７＞のいずれか一つに記載の樹脂組成物。
＜９＞ 前記熱可塑性樹脂が、前記芳香族ポリスルホン（Ａ）に該当しない芳香族ポリスルホンである、前記＜８＞に記載の樹脂組成物。
＜１０＞ 前記カーボンブラック（Ｂ）が、ファーネスブラック又はケッチェンブラックである、前記＜１＞～＜９＞のいずれか一つに記載の樹脂組成物。
＜１１＞ 前記＜１＞～＜１０＞のいずれか一つに記載の樹脂組成物を含む、成形体。
＜１２＞ 芳香族ポリスルホン（Ａ）を含有し、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、カーボンブラック分散剤。 <1> Aromatic polysulfone (A),
including carbon black (B),
The aromatic polysulfone (A) has a hydroxyl group in the molecule,
A resin composition in which the coefficient of variation of the center-to-gravity distance between regions of the carbon black (B) is 0.52 or less.
<2> In the above <1>, the content of the hydroxyl groups of the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A). The resin composition described.
<3> Aromatic polysulfone (A),
including carbon black (B),
The aromatic polysulfone (A) has a hydroxyl group in the molecule,
The resin composition, wherein the content of the hydroxyl groups in the aromatic polysulfone (A) is 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A).
<4> The ratio of the content of the aromatic polysulfone (A) having a hydroxyl group content of 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g to the total mass of the resin composition, The resin composition according to any one of <1> to <3> above, which has a content of 0.01% by mass or more and less than 30% by mass.
<5> Any one of <1> to <4> above, wherein the content ratio of the carbon black (B) to the total weight of the resin composition is 0.01% by mass or more and less than 20% by mass. The resin composition described in .
<6> The resin composition according to any one of <1> to <5>, wherein the aromatic polysulfone (A) has a reduced viscosity of 0.20 dL/g or more.
<7> The resin composition according to any one of <1> to <6>, wherein the aromatic polysulfone (A) has a repeating unit represented by the following formula (1).
(1) -Ph 1 -SO 2 -Ph 2 -O-
[In the formula, Ph 1 and Ph 2 each independently represent a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group. ]
<8> Furthermore, it contains a resin (C) other than the aromatic polysulfone (A),
The resin composition according to any one of <1> to <7>, wherein the resin (C) is a thermoplastic resin.
<9> The resin composition according to <8>, wherein the thermoplastic resin is an aromatic polysulfone that does not fall under the aromatic polysulfone (A).
<10> The resin composition according to any one of <1> to <9> above, wherein the carbon black (B) is furnace black or Ketjen black.
<11> A molded article comprising the resin composition according to any one of <1> to <10>.
<12> Contains an aromatic polysulfone (A), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the content of the hydroxyl group of the aromatic polysulfone (A) is equal to or less than that of the aromatic polysulfone (A). ) A carbon black dispersant having an amount of 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g.
カーボンブラック（Ｂ）と、を含み、
前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、
前記カーボンブラック（Ｂ）の領域間の重心間距離の変動係数が０．５２以下である、樹脂組成物。
＜２＞ 前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、前記＜１＞に記載の樹脂組成物。
＜３＞ 芳香族ポリスルホン（Ａ）と、
カーボンブラック（Ｂ）と、を含み、
前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、
前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、樹脂組成物。
＜４＞ 前記樹脂組成物の総質量に対する、１ｇあたりの水酸基の含有量が１×１０－５モル以上４０×１０－５モル以下である前記芳香族ポリスルホン（Ａ）の含有量の割合が、０．０１質量％以上３０質量％未満である、前記＜１＞～＜３＞のいずれか一つに記載の樹脂組成物。
＜５＞ 前記樹脂組成物の総質量に対する、前記カーボンブラック（Ｂ）の含有量の割合が、０．０１質量％以上２０質量％未満である、前記＜１＞～＜４＞のいずれか一つに記載の樹脂組成物。
＜６＞ 前記芳香族ポリスルホン（Ａ）の還元粘度が０．２０ｄＬ／ｇ以上である、前記＜１＞～＜５＞のいずれか一つに記載の樹脂組成物。
＜７＞ 前記芳香族ポリスルホン（Ａ）が、下記式（１）で表される繰返し単位を有する、前記＜１＞～＜６＞のいずれか一つに記載の樹脂組成物。
（１）－Ｐｈ１－ＳＯ２－Ｐｈ２－Ｏ－
［式中、Ｐｈ１及びＰｈ２は、それぞれ独立に、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基、又は水酸基で置換されていてもよい。］
＜８＞ 更に、前記芳香族ポリスルホン（Ａ）以外の樹脂（Ｃ）を含み、
前記樹脂（Ｃ）が熱可塑性樹脂である、前記＜１＞～＜７＞のいずれか一つに記載の樹脂組成物。
＜９＞ 前記熱可塑性樹脂が、前記芳香族ポリスルホン（Ａ）に該当しない芳香族ポリスルホンである、前記＜８＞に記載の樹脂組成物。
＜１０＞ 前記カーボンブラック（Ｂ）が、ファーネスブラック又はケッチェンブラックである、前記＜１＞～＜９＞のいずれか一つに記載の樹脂組成物。
＜１１＞ 前記＜１＞～＜１０＞のいずれか一つに記載の樹脂組成物を含む、成形体。
＜１２＞ 芳香族ポリスルホン（Ａ）を含有し、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、カーボンブラック分散剤。 <1> Aromatic polysulfone (A),
including carbon black (B),
The aromatic polysulfone (A) has a hydroxyl group in the molecule,
A resin composition in which the coefficient of variation of the center-to-gravity distance between regions of the carbon black (B) is 0.52 or less.
<2> In the above <1>, the content of the hydroxyl groups of the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A). The resin composition described.
<3> Aromatic polysulfone (A),
including carbon black (B),
The aromatic polysulfone (A) has a hydroxyl group in the molecule,
The resin composition, wherein the content of the hydroxyl groups in the aromatic polysulfone (A) is 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A).
<4> The ratio of the content of the aromatic polysulfone (A) having a hydroxyl group content of 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g to the total mass of the resin composition, The resin composition according to any one of <1> to <3> above, which has a content of 0.01% by mass or more and less than 30% by mass.
<5> Any one of <1> to <4> above, wherein the content ratio of the carbon black (B) to the total weight of the resin composition is 0.01% by mass or more and less than 20% by mass. The resin composition described in .
<6> The resin composition according to any one of <1> to <5>, wherein the aromatic polysulfone (A) has a reduced viscosity of 0.20 dL/g or more.
<7> The resin composition according to any one of <1> to <6>, wherein the aromatic polysulfone (A) has a repeating unit represented by the following formula (1).
(1) -Ph 1 -SO 2 -Ph 2 -O-
[In the formula, Ph 1 and Ph 2 each independently represent a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group. ]
<8> Furthermore, it contains a resin (C) other than the aromatic polysulfone (A),
The resin composition according to any one of <1> to <7>, wherein the resin (C) is a thermoplastic resin.
<9> The resin composition according to <8>, wherein the thermoplastic resin is an aromatic polysulfone that does not fall under the aromatic polysulfone (A).
<10> The resin composition according to any one of <1> to <9> above, wherein the carbon black (B) is furnace black or Ketjen black.
<11> A molded article comprising the resin composition according to any one of <1> to <10>.
<12> Contains an aromatic polysulfone (A), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the content of the hydroxyl group of the aromatic polysulfone (A) is equal to or less than that of the aromatic polysulfone (A). ) A carbon black dispersant having an amount of 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g.
本発明によれば、芳香族ポリスルホン（Ａ）とカーボンブラック（Ｂ）とを含む樹脂組成物において、引張破壊エネルギーを指標とする耐久性が改善された樹脂組成物を提供できる。
また、本発明によれば、前記樹脂組成物を含む成形体を提供できる。
また、本発明によれば、カーボンブラック（Ｂ）の分散性を向上させるカーボンブラック分散剤を提供できる。 According to the present invention, it is possible to provide a resin composition containing aromatic polysulfone (A) and carbon black (B) that has improved durability as measured by tensile fracture energy.
Further, according to the present invention, a molded article containing the resin composition can be provided.
Moreover, according to the present invention, a carbon black dispersant that improves the dispersibility of carbon black (B) can be provided.
また、本発明によれば、前記樹脂組成物を含む成形体を提供できる。
また、本発明によれば、カーボンブラック（Ｂ）の分散性を向上させるカーボンブラック分散剤を提供できる。 According to the present invention, it is possible to provide a resin composition containing aromatic polysulfone (A) and carbon black (B) that has improved durability as measured by tensile fracture energy.
Further, according to the present invention, a molded article containing the resin composition can be provided.
Moreover, according to the present invention, a carbon black dispersant that improves the dispersibility of carbon black (B) can be provided.
以下、本発明の樹脂組成物、成形体及びカーボンブラック分散剤の実施形態を説明する。
Hereinafter, embodiments of the resin composition, molded article, and carbon black dispersant of the present invention will be described.
≪樹脂組成物≫
［第１実施形態］
本実施形態の樹脂組成物は、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、を含み、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記カーボンブラック（Ｂ）の領域間の重心間距離の変動係数が０．５２以下である。 ≪Resin composition≫
[First embodiment]
The resin composition of the present embodiment includes aromatic polysulfone (A) and carbon black (B), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the carbon black (B) has a hydroxyl group. The coefficient of variation of the distance between the centers of gravity between regions is 0.52 or less.
［第１実施形態］
本実施形態の樹脂組成物は、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、を含み、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記カーボンブラック（Ｂ）の領域間の重心間距離の変動係数が０．５２以下である。 ≪Resin composition≫
[First embodiment]
The resin composition of the present embodiment includes aromatic polysulfone (A) and carbon black (B), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the carbon black (B) has a hydroxyl group. The coefficient of variation of the distance between the centers of gravity between regions is 0.52 or less.
上記の変動係数が０．５２以下を満たす実施形態の樹脂組成物は、上記の変動係数が０．５２以下を満たさない樹脂組成物と比べ、引張破壊エネルギーを指標とする耐久性が向上される。
The resin composition of the embodiment that satisfies the above coefficient of variation of 0.52 or less has improved durability as measured by tensile fracture energy, compared to the resin composition that does not satisfy the coefficient of variation of 0.52 or less. .
また、上記の変動係数が０．５２以下を満たす実施形態の樹脂組成物は、上記の変動係数が０．５２以下を満たさない樹脂組成物と比べ、比摩耗量を指標とする耐摩耗性が向上される。
Furthermore, the resin compositions of the embodiments in which the above coefficient of variation satisfies 0.52 or less have higher wear resistance as measured by specific wear amount than resin compositions in which the coefficient of variation does not satisfy 0.52 or less. Improved.
実施形態の樹脂組成物は、更に、前記芳香族ポリスルホン（Ａ）以外の樹脂（Ｃ）を含むことができる。
The resin composition of the embodiment can further contain a resin (C) other than the aromatic polysulfone (A).
なお、本明細書において、前記芳香族ポリスルホン（Ａ）以外の樹脂（Ｃ）を指して、単に樹脂（Ｃ）ということがある。
In addition, in this specification, the resin (C) other than the aromatic polysulfone (A) may be simply referred to as resin (C).
本実施形態において、芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上４０×１０－５モル以下であることが好ましい。
以下、樹脂（Ｃ）が芳香族ポリスルホンである場合には、芳香族ポリスルホン１ｇあたりの水酸基含有量が１×１０－５モル以上４０×１０－５モル以下である芳香族ポリスルホンを前記芳香族ポリスルホン（Ａ）とし、芳香族ポリスルホン１ｇあたりの水酸基の含有量が１×１０－５モル未満である芳香族ポリスルホンを、芳香族ポリスルホン（ｃ）（この場合の芳香族ポリスルホン（ｃ）は樹脂（Ｃ）に該当する。）とする。 In the present embodiment, the content of the hydroxyl groups in the aromatic polysulfone (A) is preferably 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A).
Hereinafter, when the resin (C) is an aromatic polysulfone, the aromatic polysulfone having a hydroxyl group content of 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of aromatic polysulfone is used as the aromatic polysulfone. (A), aromatic polysulfone whose content of hydroxyl groups per gram of aromatic polysulfone is less than 1 × 10 -5 mol, aromatic polysulfone (c) (in this case, aromatic polysulfone (c) is resin (C ).
以下、樹脂（Ｃ）が芳香族ポリスルホンである場合には、芳香族ポリスルホン１ｇあたりの水酸基含有量が１×１０－５モル以上４０×１０－５モル以下である芳香族ポリスルホンを前記芳香族ポリスルホン（Ａ）とし、芳香族ポリスルホン１ｇあたりの水酸基の含有量が１×１０－５モル未満である芳香族ポリスルホンを、芳香族ポリスルホン（ｃ）（この場合の芳香族ポリスルホン（ｃ）は樹脂（Ｃ）に該当する。）とする。 In the present embodiment, the content of the hydroxyl groups in the aromatic polysulfone (A) is preferably 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A).
Hereinafter, when the resin (C) is an aromatic polysulfone, the aromatic polysulfone having a hydroxyl group content of 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of aromatic polysulfone is used as the aromatic polysulfone. (A), aromatic polysulfone whose content of hydroxyl groups per gram of aromatic polysulfone is less than 1 × 10 -5 mol, aromatic polysulfone (c) (in this case, aromatic polysulfone (c) is resin (C ).
本実施形態の樹脂組成物は、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、必要に応じて含有されてよい樹脂（Ｃ）や、その他の任意成分とを、樹脂組成物におけるそれらの含有量（質量％）の合計が樹脂組成物の総質量（１００質量％）を超えないよう含有することができる。
The resin composition of the present embodiment contains aromatic polysulfone (A), carbon black (B), resin (C) that may be contained as necessary, and other optional components. can be contained so that the total content (mass%) does not exceed the total mass (100 mass%) of the resin composition.
以下、実施形態の樹脂組成物に含有される、芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、及び樹脂（Ｃ）の詳細について説明する。
Hereinafter, details of the aromatic polysulfone (A), carbon black (B), and resin (C) contained in the resin composition of the embodiment will be described.
なお、実施形態の樹脂組成物において、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、樹脂（Ｃ）と、任意成分とは、互いの組成物若しくは反応物の形態で含まれていてもよい。
In addition, in the resin composition of the embodiment, the aromatic polysulfone (A), carbon black (B), resin (C), and optional components are contained in the form of each other's compositions or reactants. Good too.
＜芳香族ポリスルホン（Ａ）＞
本明細書において、芳香族ポリスルホン（Ａ）における「芳香族ポリスルホン」とは、２価の芳香族基（芳香族化合物から、その芳香環に結合した水素原子を２個除いてなる残基）と、エーテル結合（－Ｏ－）と、スルホニル基（－ＳＯ２－）とを含む繰返し単位を有する樹脂である。 <Aromatic polysulfone (A)>
In the present specification, "aromatic polysulfone" in aromatic polysulfone (A) refers to a divalent aromatic group (a residue formed by removing two hydrogen atoms bonded to the aromatic ring from an aromatic compound). , a resin having repeating units containing an ether bond (-O-) and a sulfonyl group (-SO 2 -).
本明細書において、芳香族ポリスルホン（Ａ）における「芳香族ポリスルホン」とは、２価の芳香族基（芳香族化合物から、その芳香環に結合した水素原子を２個除いてなる残基）と、エーテル結合（－Ｏ－）と、スルホニル基（－ＳＯ２－）とを含む繰返し単位を有する樹脂である。 <Aromatic polysulfone (A)>
In the present specification, "aromatic polysulfone" in aromatic polysulfone (A) refers to a divalent aromatic group (a residue formed by removing two hydrogen atoms bonded to the aromatic ring from an aromatic compound). , a resin having repeating units containing an ether bond (-O-) and a sulfonyl group (-SO 2 -).
実施形態の樹脂組成物に配合される芳香族ポリスルホン（Ａ）は、その分子内に水酸基を有する。
The aromatic polysulfone (A) blended into the resin composition of the embodiment has a hydroxyl group in its molecule.
前記水酸基は、芳香族ポリスルホンの主鎖末端に位置するものであってよい。すなわち、芳香族ポリスルホン（Ａ）は、その芳香族ポリスルホンの主鎖末端に少なくとも１つの末端水酸基を有するものであってよい。
The hydroxyl group may be located at the end of the main chain of the aromatic polysulfone. That is, the aromatic polysulfone (A) may have at least one terminal hydroxyl group at the end of the main chain of the aromatic polysulfone.
前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上４０×１０－５モル以下であってよく、６×１０－５モル以上３０×１０－５モル以下であってよく、８×１０－５モル以上２０×１０－５モル以下であってよく、８×１０－５モル以上１０×１０－５モル以下であってよい。
上記の下限値以上で水酸基を含有する芳香族ポリスルホン（Ａ）によれば、上記の耐久性及び耐摩耗性の向上の作用に優れる。
上記の上限値以下で水酸基を含有する芳香族ポリスルホン（Ａ）によれば、芳香族ポリスルホン（Ａ）を含有することによる粘度上昇が生じ難く、樹脂組成物の安定した加工が可能である。 The content of the hydroxyl groups in the aromatic polysulfone (A) may be 1 x 10 -5 mol or more and 40 x 10 -5 mol or less, and 6 x 10 -5 mol or more per 1 g of the aromatic polysulfone (A). The amount may be 30×10 −5 mol or less, 8×10 −5 mol or more and 20×10 −5 mol or less, and 8×10 −5 mol or more and 10×10 −5 mol or less.
The aromatic polysulfone (A) containing hydroxyl groups at or above the above lower limit is excellent in improving the durability and abrasion resistance.
According to the aromatic polysulfone (A) containing hydroxyl groups below the above upper limit, the viscosity is unlikely to increase due to the inclusion of the aromatic polysulfone (A), and stable processing of the resin composition is possible.
上記の下限値以上で水酸基を含有する芳香族ポリスルホン（Ａ）によれば、上記の耐久性及び耐摩耗性の向上の作用に優れる。
上記の上限値以下で水酸基を含有する芳香族ポリスルホン（Ａ）によれば、芳香族ポリスルホン（Ａ）を含有することによる粘度上昇が生じ難く、樹脂組成物の安定した加工が可能である。 The content of the hydroxyl groups in the aromatic polysulfone (A) may be 1 x 10 -5 mol or more and 40 x 10 -5 mol or less, and 6 x 10 -5 mol or more per 1 g of the aromatic polysulfone (A). The amount may be 30×10 −5 mol or less, 8×10 −5 mol or more and 20×10 −5 mol or less, and 8×10 −5 mol or more and 10×10 −5 mol or less.
The aromatic polysulfone (A) containing hydroxyl groups at or above the above lower limit is excellent in improving the durability and abrasion resistance.
According to the aromatic polysulfone (A) containing hydroxyl groups below the above upper limit, the viscosity is unlikely to increase due to the inclusion of the aromatic polysulfone (A), and stable processing of the resin composition is possible.
なお、芳香族ポリスルホン中の前記水酸基の含有量の測定方法は以下である。
Note that the method for measuring the content of the hydroxyl groups in the aromatic polysulfone is as follows.
［水酸基の含有量］
所定量の芳香族ポリスルホンをジメチルホルムアミドに溶解させ、過剰量のパラトルエンスルホン酸を加えた後、電位差滴定装置を用いて、０．０５モル／Ｌのカリウムメトキシド／トルエン・メタノール溶液（体積比率トルエン:メタノール＝８：２）で滴定し、残存パラトルエンスルホン酸を中和した後、水酸基を中和し、この水酸基の中和に要したカリウムメトキシドの量（モル）を、芳香族ポリスルホンの前記所定量（ｇ）で割ることにより、求める。 [Content of hydroxyl groups]
Dissolve a predetermined amount of aromatic polysulfone in dimethylformamide, add an excess amount of para-toluenesulfonic acid, and then use a potentiometric titrator to dissolve 0.05 mol/L potassium methoxide/toluene/methanol solution (volume ratio). After titrating with toluene:methanol=8:2) to neutralize the remaining para-toluenesulfonic acid, the hydroxyl groups were neutralized, and the amount (mol) of potassium methoxide required to neutralize the hydroxyl groups was calculated using aromatic polysulfone. It is determined by dividing by the predetermined amount (g).
所定量の芳香族ポリスルホンをジメチルホルムアミドに溶解させ、過剰量のパラトルエンスルホン酸を加えた後、電位差滴定装置を用いて、０．０５モル／Ｌのカリウムメトキシド／トルエン・メタノール溶液（体積比率トルエン:メタノール＝８：２）で滴定し、残存パラトルエンスルホン酸を中和した後、水酸基を中和し、この水酸基の中和に要したカリウムメトキシドの量（モル）を、芳香族ポリスルホンの前記所定量（ｇ）で割ることにより、求める。 [Content of hydroxyl groups]
Dissolve a predetermined amount of aromatic polysulfone in dimethylformamide, add an excess amount of para-toluenesulfonic acid, and then use a potentiometric titrator to dissolve 0.05 mol/L potassium methoxide/toluene/methanol solution (volume ratio). After titrating with toluene:methanol=8:2) to neutralize the remaining para-toluenesulfonic acid, the hydroxyl groups were neutralized, and the amount (mol) of potassium methoxide required to neutralize the hydroxyl groups was calculated using aromatic polysulfone. It is determined by dividing by the predetermined amount (g).
芳香族ポリスルホンは、耐熱性や耐薬品性に優れる点から、下記式（１）で表される繰返し単位（以下、「繰返し単位（１）」ということがある。）を有するものであることが好ましい。繰返し単位（１）の他に、さらに、下記式（２）で表される繰返し単位（以下、「繰返し単位（２）」ということがある。）や、下記式（３）で表される繰返し単位（以下、「繰返し単位（３）」ということがある。）等の他の繰返し単位を１種以上有していてもよい。
Since aromatic polysulfone has excellent heat resistance and chemical resistance, it is preferable that it has a repeating unit represented by the following formula (1) (hereinafter sometimes referred to as "repeat unit (1)"). preferable. In addition to the repeating unit (1), there are also repeating units represented by the following formula (2) (hereinafter sometimes referred to as "repeating units (2)") and repeating units represented by the following formula (3). It may contain one or more types of other repeating units such as units (hereinafter sometimes referred to as "repeat units (3)").
（１）－Ｐｈ１－ＳＯ２－Ｐｈ２－Ｏ－
［式中、Ｐｈ１及びＰｈ２は、それぞれ独立に、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基、又は水酸基で置換されていてもよい。］ (1) -Ph 1 -SO 2 -Ph 2 -O-
[In the formula, Ph 1 and Ph 2 each independently represent a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group. ]
［式中、Ｐｈ１及びＰｈ２は、それぞれ独立に、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基、又は水酸基で置換されていてもよい。］ (1) -Ph 1 -SO 2 -Ph 2 -O-
[In the formula, Ph 1 and Ph 2 each independently represent a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group. ]
（２）－Ｐｈ３－Ｒ－Ｐｈ４－Ｏ－
［式中、Ｐｈ３及びＰｈ４は、それぞれ独立に、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基、又は水酸基で置換されていてもよい。Ｒは、アルキリデン基、酸素原子又は硫黄原子を表す。］ (2) -Ph 3 -R-Ph 4 -O-
[In the formula, Ph 3 and Ph 4 each independently represent a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group. R represents an alkylidene group, an oxygen atom or a sulfur atom. ]
［式中、Ｐｈ３及びＰｈ４は、それぞれ独立に、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基、又は水酸基で置換されていてもよい。Ｒは、アルキリデン基、酸素原子又は硫黄原子を表す。］ (2) -Ph 3 -R-Ph 4 -O-
[In the formula, Ph 3 and Ph 4 each independently represent a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group. R represents an alkylidene group, an oxygen atom or a sulfur atom. ]
（３）－（Ｐｈ５）ｎ－Ｏ－
［式中、Ｐｈ５は、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基、又は水酸基で置換されていてもよい。ｎは、１～３の整数を表す。ｎが２以上である場合、複数存在するＰｈ５は、互いに同一であっても異なっていてもよい。］ (3)-(Ph 5 ) n -O-
[In the formula, Ph 5 represents a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group. n represents an integer from 1 to 3. When n is 2 or more, the plurality of Ph 5 's may be the same or different from each other. ]
［式中、Ｐｈ５は、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基、又は水酸基で置換されていてもよい。ｎは、１～３の整数を表す。ｎが２以上である場合、複数存在するＰｈ５は、互いに同一であっても異なっていてもよい。］ (3)-(Ph 5 ) n -O-
[In the formula, Ph 5 represents a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group. n represents an integer from 1 to 3. When n is 2 or more, the plurality of Ph 5 's may be the same or different from each other. ]
Ｐｈ１～Ｐｈ５のいずれかで表されるフェニレン基は、ｐ－フェニレン基であってもよいし、ｍ－フェニレン基であってもよいし、ｏ－フェニレン基であってもよいが、ｐ－フェニレン基であることが好ましい。
The phenylene group represented by any one of Ph 1 to Ph 5 may be a p-phenylene group, a m-phenylene group, or an o-phenylene group, but - A phenylene group is preferred.
前記フェニレン基にある水素原子を置換していてもよいアルキル基において、炭素数は、１～１０であることが好ましい。具体例としては、メチル基、エチル基、ｎ－プロピル基、イソプロピル基、ｎ－ブチル基、イソブチル基、ｓ－ブチル基、ｔ－ブチル基、ｎ－ヘキシル基、２－エチルヘキシル基、ｎ－オクチル基、ｎ－デシル基等が挙げられる。
The number of carbon atoms in the alkyl group which may be substituted with the hydrogen atom in the phenylene group is preferably 1 to 10. Specific examples include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, s-butyl group, t-butyl group, n-hexyl group, 2-ethylhexyl group, n-octyl group. group, n-decyl group, etc.
前記フェニレン基にある水素原子を置換していてもよいアリール基において、炭素数は、６～２０であることが好ましい。具体例としては、フェニル基、ｏ－トリル基、ｍ－トリル基、ｐ－トリル基、１－ナフチル基、２－ナフチル基等が挙げられる。
In the aryl group which may substitute the hydrogen atom in the phenylene group, the number of carbon atoms is preferably 6 to 20. Specific examples include phenyl group, o-tolyl group, m-tolyl group, p-tolyl group, 1-naphthyl group, 2-naphthyl group, and the like.
前記フェニレン基にある水素原子を置換していてもよいハロゲン原子としては、フッ素原子、塩素原子、臭素原子、ヨウ素原子等が挙げられる。
Examples of the halogen atom that may substitute the hydrogen atom in the phenylene group include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, and the like.
前記フェニレン基にある水素原子がこれらの基で置換されている場合は、その数は、前記フェニレン基毎に、それぞれ独立に、好ましくは２個以下であり、より好ましくは１個である。
上記の中でも、前記フェニレン基にある水素原子は置換されていないことが好ましい。 When the hydrogen atoms in the phenylene group are substituted with these groups, the number is preferably 2 or less, more preferably 1, for each phenylene group independently.
Among the above, it is preferable that the hydrogen atom in the phenylene group is not substituted.
上記の中でも、前記フェニレン基にある水素原子は置換されていないことが好ましい。 When the hydrogen atoms in the phenylene group are substituted with these groups, the number is preferably 2 or less, more preferably 1, for each phenylene group independently.
Among the above, it is preferable that the hydrogen atom in the phenylene group is not substituted.
Ｒで表されるアルキリデン基において、炭素数は、１～５であることが好ましい。具体例としては、メチレン基、エチリデン基、イソプロピリデン基、１－ブチリデン基等が挙げられる。
The alkylidene group represented by R preferably has 1 to 5 carbon atoms. Specific examples include methylene group, ethylidene group, isopropylidene group, and 1-butylidene group.
芳香族ポリスルホンは、繰返し単位（１）を、全繰返し単位の合計モル数（１００モル％）に対して、５０モル％以上有することが好ましく、８０モル％以上有することがより好ましく、繰返し単位として実質的に繰返し単位（１）のみを有することがさらに好ましい。なお、芳香族ポリスルホンは、繰返し単位（１）～（３）を、それぞれ独立に、２種以上有してもよい。
The aromatic polysulfone preferably has the repeating unit (1) in an amount of 50 mol% or more, more preferably 80 mol% or more, based on the total number of moles (100 mol%) of all repeating units. It is more preferable to have substantially only the repeating unit (1). Note that the aromatic polysulfone may have two or more types of repeating units (1) to (3), each independently.
芳香族ポリスルホンは、それを構成する繰返し単位に対応するジハロゲノスルホン化合物とジヒドロキシ化合物とを重縮合させることにより、製造することができる。
Aromatic polysulfone can be produced by polycondensing a dihalogenosulfone compound and a dihydroxy compound corresponding to the repeating units that constitute the aromatic polysulfone.
例えば、繰返し単位（１）を有する樹脂は、ジハロゲノスルホン化合物として下記式（４）で表される化合物（以下、「化合物（４）」ともいう）を用い、ジヒドロキシ化合物として下記式（５）で表される化合物を用いることにより、製造することができる。
For example, the resin having the repeating unit (1) uses a compound represented by the following formula (4) (hereinafter also referred to as "compound (4)") as the dihalogenosulfone compound, and a compound represented by the following formula (5) as the dihydroxy compound. It can be produced by using a compound represented by:
例えば、繰返し単位（１）と繰返し単位（２）とを有する樹脂は、ジハロゲノスルホン化合物として化合物（４）を用い、ジヒドロキシ化合物として下記式（６）で表される化合物を用いることにより、製造することができる。
For example, a resin having repeating units (1) and repeating units (2) can be produced by using compound (4) as the dihalogenosulfone compound and using a compound represented by the following formula (6) as the dihydroxy compound. can do.
例えば、繰返し単位（１）と繰返し単位（３）とを有する樹脂は、ジハロゲノスルホン化合物として化合物（４）を用い、ジヒドロキシ化合物として下記式（７）で表される化合物を用いることにより、製造することができる。
For example, a resin having repeating units (1) and repeating units (3) can be produced by using compound (4) as the dihalogenosulfone compound and using a compound represented by the following formula (7) as the dihydroxy compound. can do.
（４）Ｘ１－Ｐｈ１－ＳＯ２－Ｐｈ２－Ｘ２
［式中、Ｘ１は及びＸ２は、それぞれ独立に、ハロゲン原子を表す。Ｐｈ１及びＰｈ２は、前記と同義である。］ (4)X 1 -Ph 1 -SO 2 -Ph 2 -X 2
[In the formula, X 1 and X 2 each independently represent a halogen atom. Ph 1 and Ph 2 have the same meanings as above. ]
［式中、Ｘ１は及びＸ２は、それぞれ独立に、ハロゲン原子を表す。Ｐｈ１及びＰｈ２は、前記と同義である。］ (4)X 1 -Ph 1 -SO 2 -Ph 2 -X 2
[In the formula, X 1 and X 2 each independently represent a halogen atom. Ph 1 and Ph 2 have the same meanings as above. ]
（５）ＨＯ－Ｐｈ１－ＳＯ２－Ｐｈ２－ＯＨ
［式中、Ｐｈ１及びＰｈ２は、前記と同義である。］ (5) HO-Ph 1 -SO 2 -Ph 2 -OH
[In the formula, Ph 1 and Ph 2 have the same meanings as above. ]
［式中、Ｐｈ１及びＰｈ２は、前記と同義である。］ (5) HO-Ph 1 -SO 2 -Ph 2 -OH
[In the formula, Ph 1 and Ph 2 have the same meanings as above. ]
（６）ＨＯ－Ｐｈ３－Ｒ－Ｐｈ４－ＯＨ
［式中、Ｐｈ３、Ｐｈ４及びＲは、前記と同義である。］ (6) HO-Ph 3 -R-Ph 4 -OH
[In the formula, Ph 3 , Ph 4 and R have the same meanings as above. ]
［式中、Ｐｈ３、Ｐｈ４及びＲは、前記と同義である。］ (6) HO-Ph 3 -R-Ph 4 -OH
[In the formula, Ph 3 , Ph 4 and R have the same meanings as above. ]
（７）ＨＯ－（Ｐｈ５）ｎ－ＯＨ
［式中、Ｐｈ５及びｎは、前記と同義である。］ (7) HO-(Ph 5 ) n -OH
[In the formula, Ph 5 and n have the same meanings as above. ]
［式中、Ｐｈ５及びｎは、前記と同義である。］ (7) HO-(Ph 5 ) n -OH
[In the formula, Ph 5 and n have the same meanings as above. ]
なお、上記式（５）～（７）中のＯＨ基は、芳香族ポリスルホン（Ａ）の主鎖末端に位置する水酸基に該当する。
Note that the OH group in the above formulas (5) to (7) corresponds to the hydroxyl group located at the end of the main chain of the aromatic polysulfone (A).
芳香族ポリスルホンの重縮合は、炭酸のアルカリ金属塩を用いて、溶媒中で行うことが好ましい。炭酸のアルカリ金属塩は、正塩である炭酸塩であってもよいし、酸性塩である重炭酸塩（炭酸水素塩）であってもよいし、両者の混合物であってもよい。炭酸塩としては、炭酸ナトリウムや炭酸カリウムが好ましく用いられ、炭酸水素塩としては、重炭酸ナトリウムや重炭酸カリウムが好ましく用いられる。
The polycondensation of aromatic polysulfone is preferably carried out in a solvent using an alkali metal salt of carbonic acid. The alkali metal salt of carbonic acid may be a carbonate which is a normal salt, a bicarbonate (bicarbonate) which is an acid salt, or a mixture of both. As the carbonate, sodium carbonate and potassium carbonate are preferably used, and as the hydrogen carbonate, sodium bicarbonate and potassium bicarbonate are preferably used.
重縮合の溶媒としては、有機極性溶媒が好ましく用いられる。具体例としては、ジメチルスルホキシド、１－メチル－２－ピロリドン、スルホラン（１，１－ジオキソチラン）、１，３-ジメチル－２－イミダゾリジノン、１，３－ジエチル－２－イミダゾリジノン、ジメチルスルホン、ジエチルスルホン、ジイソプロピルスルホン、ジフェニルスルホン等が挙げられる。
As the solvent for polycondensation, organic polar solvents are preferably used. Specific examples include dimethyl sulfoxide, 1-methyl-2-pyrrolidone, sulfolane (1,1-dioxothyrane), 1,3-dimethyl-2-imidazolidinone, 1,3-diethyl-2-imidazolidinone, dimethyl Examples include sulfone, diethyl sulfone, diisopropylsulfone, diphenyl sulfone, and the like.
芳香族ポリスルホン（Ａ）の還元粘度は、分子量の指標となり得るものであり、０．２０ｄＬ／ｇ以上であることが好ましく、０．２５ｄＬ／ｇ以上であることがより好ましく、０．３０ｄＬ／ｇ以上であることがより好ましく、０．３５ｄＬ／ｇ以上であることがさらに好ましい。
芳香族ポリスルホン（Ａ）の還元粘度が上記の下限値以上であると、実施形態の樹脂組成物の成形体の、耐久性及び耐摩耗性が良好であり好ましい。 The reduced viscosity of aromatic polysulfone (A) can be an indicator of molecular weight, and is preferably 0.20 dL/g or more, more preferably 0.25 dL/g or more, and 0.30 dL/g. It is more preferably at least 0.35 dL/g, and even more preferably at least 0.35 dL/g.
It is preferable that the reduced viscosity of the aromatic polysulfone (A) is equal to or higher than the above lower limit because the molded article of the resin composition of the embodiment has good durability and abrasion resistance.
芳香族ポリスルホン（Ａ）の還元粘度が上記の下限値以上であると、実施形態の樹脂組成物の成形体の、耐久性及び耐摩耗性が良好であり好ましい。 The reduced viscosity of aromatic polysulfone (A) can be an indicator of molecular weight, and is preferably 0.20 dL/g or more, more preferably 0.25 dL/g or more, and 0.30 dL/g. It is more preferably at least 0.35 dL/g, and even more preferably at least 0.35 dL/g.
It is preferable that the reduced viscosity of the aromatic polysulfone (A) is equal to or higher than the above lower limit because the molded article of the resin composition of the embodiment has good durability and abrasion resistance.
芳香族ポリスルホン（Ａ）の還元粘度の上限値は、特に制限されるものではないが、０．６０ｄＬ／ｇ以下であってよく、０．５５ｄＬ／ｇ以下であってよい。
芳香族ポリスルホン（Ａ）の還元粘度が上記の上限値以下であると、芳香族ポリスルホン（Ａ）の水酸基の含有量を所望の値とすることが容易であり好ましい。 The upper limit of the reduced viscosity of the aromatic polysulfone (A) is not particularly limited, but may be 0.60 dL/g or less, and may be 0.55 dL/g or less.
It is preferable that the reduced viscosity of the aromatic polysulfone (A) is below the above upper limit because it is easy to set the content of hydroxyl groups in the aromatic polysulfone (A) to a desired value.
芳香族ポリスルホン（Ａ）の還元粘度が上記の上限値以下であると、芳香族ポリスルホン（Ａ）の水酸基の含有量を所望の値とすることが容易であり好ましい。 The upper limit of the reduced viscosity of the aromatic polysulfone (A) is not particularly limited, but may be 0.60 dL/g or less, and may be 0.55 dL/g or less.
It is preferable that the reduced viscosity of the aromatic polysulfone (A) is below the above upper limit because it is easy to set the content of hydroxyl groups in the aromatic polysulfone (A) to a desired value.
上記の芳香族ポリスルホン（Ａ）の還元粘度の数値範囲の一例としては、０．２０ｄＬ／ｇ以上０．６０ｄＬ／ｇ以下であってよく、０．２５ｄＬ／ｇ以上０．６０ｄＬ／ｇ以下であってよく、０．３０ｄＬ／ｇ以上０．６０ｄＬ／ｇ以下であってよく、０．３５ｄＬ／ｇ以上０．５５ｄＬ／ｇ以下であってよく、０．４５ｄＬ／ｇ以上０．５５ｄＬ／ｇ以下であってよい。
As an example of the numerical range of the reduced viscosity of the aromatic polysulfone (A), it may be 0.20 dL/g or more and 0.60 dL/g or less, and 0.25 dL/g or more and 0.60 dL/g or less. may be 0.30 dL/g or more and 0.60 dL/g or less, 0.35 dL/g or more and 0.55 dL/g or less, and 0.45 dL/g or more and 0.55 dL/g or less. It's good.
本明細書において、芳香族ポリスルホンの還元粘度（Ｒｖ）は、以下の方法で測定される値を採用する。
In this specification, the reduced viscosity (Rv) of aromatic polysulfone employs a value measured by the following method.
［芳香族ポリスルホンの還元粘度］
まず、芳香族ポリスルホン約１ｇを精秤し、Ｎ，Ｎ－ジメチルホルムアミドに溶解させて、その容量を１ｄＬとし、この溶液の粘度（η）を、オストワルド型粘度管を用いて、２５℃で測定する。また、溶媒であるＮ，Ｎ－ジメチルホルムアミドの粘度（η０）を、オストワルド型粘度管を用いて、２５℃で測定する。
得られた溶液の粘度（η）と溶媒の粘度（η０）とから、比粘性率（（η－η０）／η０）を求める。得られた比粘性率を、測定に用いた溶液の濃度（約１ｇ／ｄＬ）で割ることにより得られる値を、芳香族ポリスルホンの還元粘度（ｄＬ／ｇ）とする。 [Reduced viscosity of aromatic polysulfone]
First, approximately 1 g of aromatic polysulfone was accurately weighed, dissolved in N,N-dimethylformamide to a volume of 1 dL, and the viscosity (η) of this solution was measured at 25°C using an Ostwald viscosity tube. do. Further, the viscosity (η 0 ) of N,N-dimethylformamide, which is a solvent, is measured at 25° C. using an Ostwald viscosity tube.
The specific viscosity ((η-η 0 )/η 0 ) is determined from the viscosity (η) of the obtained solution and the viscosity (η 0 ) of the solvent. The value obtained by dividing the obtained specific viscosity by the concentration of the solution used in the measurement (approximately 1 g/dL) is defined as the reduced viscosity (dL/g) of the aromatic polysulfone.
まず、芳香族ポリスルホン約１ｇを精秤し、Ｎ，Ｎ－ジメチルホルムアミドに溶解させて、その容量を１ｄＬとし、この溶液の粘度（η）を、オストワルド型粘度管を用いて、２５℃で測定する。また、溶媒であるＮ，Ｎ－ジメチルホルムアミドの粘度（η０）を、オストワルド型粘度管を用いて、２５℃で測定する。
得られた溶液の粘度（η）と溶媒の粘度（η０）とから、比粘性率（（η－η０）／η０）を求める。得られた比粘性率を、測定に用いた溶液の濃度（約１ｇ／ｄＬ）で割ることにより得られる値を、芳香族ポリスルホンの還元粘度（ｄＬ／ｇ）とする。 [Reduced viscosity of aromatic polysulfone]
First, approximately 1 g of aromatic polysulfone was accurately weighed, dissolved in N,N-dimethylformamide to a volume of 1 dL, and the viscosity (η) of this solution was measured at 25°C using an Ostwald viscosity tube. do. Further, the viscosity (η 0 ) of N,N-dimethylformamide, which is a solvent, is measured at 25° C. using an Ostwald viscosity tube.
The specific viscosity ((η-η 0 )/η 0 ) is determined from the viscosity (η) of the obtained solution and the viscosity (η 0 ) of the solvent. The value obtained by dividing the obtained specific viscosity by the concentration of the solution used in the measurement (approximately 1 g/dL) is defined as the reduced viscosity (dL/g) of the aromatic polysulfone.
実施形態の樹脂組成物は、耐久性及び耐摩耗性向上の観点から、前記樹脂組成物の総質量（１００質量％）に対して、１ｇあたりの水酸基の含有量が１×１０－５モル以上４０×１０－５モル以下である芳香族ポリスルホン（Ａ）を、０．００１質量％以上３０質量％未満含有してよく、０．０１質量％以上３０質量％未満含有してよく、０．０１～２０質量％含有してよく、０．１～２０質量％含有してよく、０．５～３０質量％含有してよく、０．５～２０質量％含有してよく、０．５～１５質量％含有してよく、０．５～１０質量％含有してよく、０．５～８質量％含有してよい。
From the viewpoint of improving durability and abrasion resistance, the resin composition of the embodiment has a hydroxyl group content of 1×10 −5 mol or more per 1 g based on the total mass (100% by mass) of the resin composition. It may contain 0.001% by mass or more and less than 30% by mass, and may contain 0.01% by mass or more and less than 30% by mass, and 0.01% by mass or more and less than 30% by mass of aromatic polysulfone (A) which is 40×10 -5 mol or less. ~20% by mass may be contained, 0.1 to 20% by mass may be contained, 0.5 to 30% by mass may be contained, 0.5 to 20% by mass may be contained, 0.5 to 15% by mass may be contained. The content may be 0.5 to 10 mass %, and 0.5 to 8 mass %.
別の側面において、実施形態の樹脂組成物は、樹脂組成物における芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、及び樹脂（Ｃ）の総和（１００質量％）に対して、１ｇあたりの水酸基の含有量が１×１０－５モル以上４０×１０－５モル以下である芳香族ポリスルホン（Ａ）を、０．００１質量％以上３０質量％未満含有してよく、０．０１質量％以上３０質量％未満含有してよく、０．０１～２０質量％含有してよく、０．１～２０質量％含有してよく、０．５～２０質量％含有してよく、０．５～８質量％含有してよい。
In another aspect, the resin composition of the embodiment has hydroxyl groups per gram of the total amount (100% by mass) of aromatic polysulfone (A), carbon black (B), and resin (C) in the resin composition. may contain aromatic polysulfone (A) having a content of 1×10 -5 mol or more and 40×10 -5 mol or less, 0.001% by mass or more and less than 30% by mass, and 0.01% by mass or more and less than 30% by mass. It may contain less than 0.01 to 20 mass %, it may contain 0.1 to 20 mass %, it may contain 0.5 to 20 mass %, and it may contain 0.5 to 8 mass %. % may be contained.
＜カーボンブラック（Ｂ）＞
実施形態の樹脂組成物は、カーボンブラック（Ｂ）を含む。
前記カーボンブラック（Ｂ）の領域間の重心間距離の、標準偏差／平均値で表される変動係数が０．５２以下であってよく、０．５０以下が好ましく、０．４９以下がより好ましく、０．４８以下がより好ましく、０．４５以下がさらに好ましい。 <Carbon black (B)>
The resin composition of the embodiment contains carbon black (B).
The coefficient of variation expressed as standard deviation/average of the distance between the centers of gravity between regions of the carbon black (B) may be 0.52 or less, preferably 0.50 or less, and more preferably 0.49 or less. , 0.48 or less is more preferable, and 0.45 or less is even more preferable.
実施形態の樹脂組成物は、カーボンブラック（Ｂ）を含む。
前記カーボンブラック（Ｂ）の領域間の重心間距離の、標準偏差／平均値で表される変動係数が０．５２以下であってよく、０．５０以下が好ましく、０．４９以下がより好ましく、０．４８以下がより好ましく、０．４５以下がさらに好ましい。 <Carbon black (B)>
The resin composition of the embodiment contains carbon black (B).
The coefficient of variation expressed as standard deviation/average of the distance between the centers of gravity between regions of the carbon black (B) may be 0.52 or less, preferably 0.50 or less, and more preferably 0.49 or less. , 0.48 or less is more preferable, and 0.45 or less is even more preferable.
前記カーボンブラック（Ｂ）の前記変動係数の下限値は、特に制限されるものではないが、一例として、０．１０であってよく、０．２０であってよく、０．３０であってよく、０．３５であってよく、０．４０であってよい。すなわち、前記カーボンブラック（Ｂ）の前記変動係数は、一例として、０．１０以上であってよく、０．２０以上であってよく、０．３０以上であってよく、０．３５以上であってよく、０．４０以上であってよい。
The lower limit of the coefficient of variation of the carbon black (B) is not particularly limited, but may be, for example, 0.10, 0.20, or 0.30. , 0.35, and 0.40. That is, the coefficient of variation of the carbon black (B) may be, for example, 0.10 or more, 0.20 or more, 0.30 or more, or 0.35 or more. It may be 0.40 or more.
前記カーボンブラック（Ｂ）の前記変動係数の上記数値範囲の一例としては、０．１０以上０．５２以下であってよく、０．２０以上０．５０以下であってよく、０．３０以上０．４９以下であってよく、０．３５以上０．４８以下であってよく、０．４０以上０．４５以下であってよい。
As an example of the numerical range of the variation coefficient of the carbon black (B), it may be 0.10 or more and 0.52 or less, 0.20 or more and 0.50 or less, and 0.30 or more and 0.30 or more. It may be 0.49 or less, 0.35 or more and 0.48 or less, and 0.40 or more and 0.45 or less.
カーボンブラック（Ｂ）の前記変動係数が上記上限値以下である実施形態の樹脂組成物は、引張破壊エネルギーの値が向上する。
カーボンブラック（Ｂ）の前記変動係数が上記上限値以下である実施形態の樹脂組成物は、耐摩耗性が向上する。 The resin composition of the embodiment in which the coefficient of variation of carbon black (B) is equal to or less than the upper limit has an improved tensile fracture energy value.
The resin composition of the embodiment in which the coefficient of variation of carbon black (B) is equal to or less than the upper limit has improved wear resistance.
カーボンブラック（Ｂ）の前記変動係数が上記上限値以下である実施形態の樹脂組成物は、耐摩耗性が向上する。 The resin composition of the embodiment in which the coefficient of variation of carbon black (B) is equal to or less than the upper limit has an improved tensile fracture energy value.
The resin composition of the embodiment in which the coefficient of variation of carbon black (B) is equal to or less than the upper limit has improved wear resistance.
前記変動係数とは、前記カーボンブラック（Ｂ）の領域間の重心間距離のばらつきを表す指標であり、変動係数の値が小さいほど重心間距離のばらつきの程度が小さいことを表す。変動係数は、カーボンブラック（Ｂ）の領域間の重心間距離の標準偏差を、カーボンブラック（Ｂ）の領域間の重心間距離の平均値で除することにより、すなわち、標準偏差／平均値で表される。標準偏差を平均値で除することにより重心間距離の値の大きさによる影響をなくし、ばらつきの程度を精度よく評価できる。
The coefficient of variation is an index representing the variation in the distance between the centers of gravity between regions of the carbon black (B), and the smaller the value of the coefficient of variation, the smaller the degree of variation in the distance between the centers of gravity. The coefficient of variation is calculated by dividing the standard deviation of the distance between the centers of gravity between the regions of carbon black (B) by the average value of the distance between the centers of gravity between the regions of carbon black (B), that is, the standard deviation/average value. expressed. By dividing the standard deviation by the average value, the influence of the magnitude of the distance between the centers of gravity can be eliminated, and the degree of dispersion can be evaluated with high accuracy.
カーボンブラック（Ｂ）の領域間の重心間距離とは、実施形態の樹脂組成物に対する二次元観察画像において点在するカーボンブラックの領域の重心間距離として測定される。すなわち、カーボンブラック（Ｂ）の領域間の重心間距離とは、カーボンブラック（Ｂ）の領域の重心間距離であり得る。
The distance between the centers of gravity between regions of carbon black (B) is measured as the distance between the centers of gravity of the regions of carbon black scattered in a two-dimensional observation image of the resin composition of the embodiment. That is, the distance between the centers of gravity between regions of carbon black (B) may be the distance between the centers of gravity of the regions of carbon black (B).
カーボンブラック（Ｂ）の領域間の重心間距離の変動係数は、以下の樹脂組成物の試験片に対する観察画像及び解析により取得される。
The coefficient of variation of the center-to-gravity distance between regions of carbon black (B) is obtained by the following observation images and analysis of a test piece of the resin composition.
［カーボンブラック（Ｂ）の領域間の重心間距離の変動係数］
（画像取得）
樹脂組成物を成形材料として、ＩＳＯ ５２７に規定される試験片Ａ形を射出成形する。射出成形の条件は、シリンダー温度３５０～４００℃、金型温度１５０℃、背圧１２ＭＰａ、スクリュー回転数８０ｒｐｍ、射出圧力１２０ＭＰａ、射出速度２４ｍｍ／ｓｅｃ、射出時間２秒、保圧１００ＭＰａ、冷却時間２５秒である。得られた試験片の中央部を切断し、その切断面を研磨機（例えば、リファインポリッシャー、笠井商工（株）製）で研磨し、金蒸着装置（例えば、イオンスパッターＥ１０１、（株）日立製作所製）にて金蒸着を施し、走査型電子顕微鏡（例えば、Ｓ－２３００形、日立走査電子顕微鏡）を用いて観察倍率３０００倍の条件下で観察して、その断面画像を取得する。 [Coefficient of variation of distance between centers of gravity between regions of carbon black (B)]
(Image acquisition)
Test piece A type specified in ISO 527 is injection molded using the resin composition as a molding material. The injection molding conditions were: cylinder temperature 350 to 400°C, mold temperature 150°C, back pressure 12 MPa, screw rotation speed 80 rpm, injection pressure 120 MPa, injection speed 24 mm/sec, injection time 2 seconds, holding pressure 100 MPa, cooling time 25. Seconds. The center part of the obtained test piece was cut, and the cut surface was polished with a polisher (e.g., Refine Polisher, manufactured by Kasai Shoko Co., Ltd.), and then polished with a gold evaporation device (e.g., ion sputter E101, manufactured by Hitachi, Ltd.). Gold evaporation is carried out using a scanning electron microscope (for example, Model S-2300, Hitachi Scanning Electron Microscope) at a magnification of 3000 times to obtain a cross-sectional image.
（画像取得）
樹脂組成物を成形材料として、ＩＳＯ ５２７に規定される試験片Ａ形を射出成形する。射出成形の条件は、シリンダー温度３５０～４００℃、金型温度１５０℃、背圧１２ＭＰａ、スクリュー回転数８０ｒｐｍ、射出圧力１２０ＭＰａ、射出速度２４ｍｍ／ｓｅｃ、射出時間２秒、保圧１００ＭＰａ、冷却時間２５秒である。得られた試験片の中央部を切断し、その切断面を研磨機（例えば、リファインポリッシャー、笠井商工（株）製）で研磨し、金蒸着装置（例えば、イオンスパッターＥ１０１、（株）日立製作所製）にて金蒸着を施し、走査型電子顕微鏡（例えば、Ｓ－２３００形、日立走査電子顕微鏡）を用いて観察倍率３０００倍の条件下で観察して、その断面画像を取得する。 [Coefficient of variation of distance between centers of gravity between regions of carbon black (B)]
(Image acquisition)
Test piece A type specified in ISO 527 is injection molded using the resin composition as a molding material. The injection molding conditions were: cylinder temperature 350 to 400°C, mold temperature 150°C, back pressure 12 MPa, screw rotation speed 80 rpm, injection pressure 120 MPa, injection speed 24 mm/sec, injection time 2 seconds, holding pressure 100 MPa, cooling time 25. Seconds. The center part of the obtained test piece was cut, and the cut surface was polished with a polisher (e.g., Refine Polisher, manufactured by Kasai Shoko Co., Ltd.), and then polished with a gold evaporation device (e.g., ion sputter E101, manufactured by Hitachi, Ltd.). Gold evaporation is carried out using a scanning electron microscope (for example, Model S-2300, Hitachi Scanning Electron Microscope) at a magnification of 3000 times to obtain a cross-sectional image.
（解析）
上記で得られた断面画像を画像解析ソフト（例えば、三谷商事株式会社製、「ＷｉｎＲＯＯＦ」 Ｖｅｒ．３．５４）を用いて、フィルタサイズ５×５のメディアン処理を行った後、連続相の領域と、点在するカーボンブラックの領域とを、カーボンブラックの領域が対象物として認識されるよう二値化処理する。なお、二値化処理の閾値は、目視で画像を確認し、カーボンブラックと他の成分とが区別できるような値に設定すればよい。処理後の画像を用い、明らかにカーボンブラックではない塵や、ノイズ、画像端の途中で切断されたカーボンブラックの領域を除去し、カーボンブラックの領域間の重心間距離の平均値とその標準偏差を算出し、それらの値から、標準偏差／平均値で表される変動係数を算出する。
解析には、カーボンブラックの領域が３つ以上含まれる断面画像２０枚以上を使用し、かつ前記３つ以上のカーボンブラックの領域について解析対象とする。 (analysis)
After performing median processing on the cross-sectional image obtained above using image analysis software (for example, "WinROOF" Ver. 3.54 manufactured by Mitani Shoji Co., Ltd.) with a filter size of 5 x 5, the continuous phase region is and the scattered carbon black regions are subjected to binarization processing so that the carbon black regions are recognized as objects. Note that the threshold value for the binarization process may be set to a value that allows carbon black to be distinguished from other components by visually checking the image. Using the image after processing, remove dust that is clearly not carbon black, noise, and areas of carbon black that are cut off in the middle of the image edge, and calculate the average value of the distance between centroids of carbon black areas and its standard deviation. is calculated, and from these values, the coefficient of variation expressed as standard deviation/average value is calculated.
For the analysis, 20 or more cross-sectional images containing three or more carbon black regions are used, and the three or more carbon black regions are targeted for analysis.
上記で得られた断面画像を画像解析ソフト（例えば、三谷商事株式会社製、「ＷｉｎＲＯＯＦ」 Ｖｅｒ．３．５４）を用いて、フィルタサイズ５×５のメディアン処理を行った後、連続相の領域と、点在するカーボンブラックの領域とを、カーボンブラックの領域が対象物として認識されるよう二値化処理する。なお、二値化処理の閾値は、目視で画像を確認し、カーボンブラックと他の成分とが区別できるような値に設定すればよい。処理後の画像を用い、明らかにカーボンブラックではない塵や、ノイズ、画像端の途中で切断されたカーボンブラックの領域を除去し、カーボンブラックの領域間の重心間距離の平均値とその標準偏差を算出し、それらの値から、標準偏差／平均値で表される変動係数を算出する。
解析には、カーボンブラックの領域が３つ以上含まれる断面画像２０枚以上を使用し、かつ前記３つ以上のカーボンブラックの領域について解析対象とする。 (analysis)
After performing median processing on the cross-sectional image obtained above using image analysis software (for example, "WinROOF" Ver. 3.54 manufactured by Mitani Shoji Co., Ltd.) with a filter size of 5 x 5, the continuous phase region is and the scattered carbon black regions are subjected to binarization processing so that the carbon black regions are recognized as objects. Note that the threshold value for the binarization process may be set to a value that allows carbon black to be distinguished from other components by visually checking the image. Using the image after processing, remove dust that is clearly not carbon black, noise, and areas of carbon black that are cut off in the middle of the image edge, and calculate the average value of the distance between centroids of carbon black areas and its standard deviation. is calculated, and from these values, the coefficient of variation expressed as standard deviation/average value is calculated.
For the analysis, 20 or more cross-sectional images containing three or more carbon black regions are used, and the three or more carbon black regions are targeted for analysis.
上記の断面画像における、カーボンブラックの領域とは、カーボンブラックの一次粒子が凝集した一次凝集体（アグリゲート）で占められた部分あってもよく、二次凝集体（アグロメレート）であってもよく、粉状（ルース）等のより高次の形態で占められた部分であってもよい。
In the cross-sectional image above, the carbon black area may be a portion occupied by primary aggregates (aggregates) in which primary particles of carbon black aggregate, or may be secondary aggregates (agglomerates). , a portion occupied by a higher-order form such as powder (loose) may also be used.
上記の二次元観察画像において解析対象とするカーボンブラックの領域の円面積相当径（同面積の真円に換算した直径）の最小値は、０．０１μｍであってよく、０．０３μｍであってよく、０．１μｍであってよい。すなわち、前記カーボンブラックの領域の円面積相当径は、０．０１μｍ以上であってよく、０．０３μｍ以上であってよく、０．１μｍ以上であってよい。
The minimum value of the circular area equivalent diameter (diameter converted to a perfect circle with the same area) of the area of carbon black to be analyzed in the above two-dimensional observation image may be 0.01 μm, and may be 0.03 μm. It may well be 0.1 μm. That is, the diameter equivalent to a circular area of the carbon black region may be 0.01 μm or more, 0.03 μm or more, or 0.1 μm or more.
上記の二次元観察画像から取得される、カーボンブラックの領域の円面積相当径（同面積の真円に換算した直径）の平均径は、０．０１～１００μｍであってよく、０．１～５０μｍであってよく、０．５～３０μｍであってよい。
The average diameter of the circular area equivalent diameter (diameter converted to a perfect circle with the same area) of the carbon black region obtained from the above two-dimensional observation image may be 0.01 to 100 μm, and may be 0.1 to 100 μm. It may be 50 μm, and may be 0.5-30 μm.
上記の変動係数の取得に用いられる前記試験片の成形材料としては、実施形態の樹脂組成物のペレットが挙げられる。
As a molding material for the test piece used to obtain the above coefficient of variation, pellets of the resin composition of the embodiment can be mentioned.
なお、上記の試験片の射出成形前後において、樹脂組成物におけるカーボンブラック（Ｂ）の領域間の重心間距離の変動係数の値は基本的に変化するものではない。そのため、上記では樹脂組成物における変動係数の取得のための観察対象として、射出成形された試験片を用いていることを挙げているが、把握したい樹脂組成物の直接的な変動係数の取得のために、例えば、樹脂組成物のペレットそのものを観察対象とすることもできる。
Note that the value of the coefficient of variation of the center-to-gravity distance between regions of carbon black (B) in the resin composition does not basically change before and after injection molding of the above test piece. Therefore, although it is mentioned above that an injection molded test piece is used as the observation target for obtaining the coefficient of variation in a resin composition, it is difficult to directly obtain the coefficient of variation of the resin composition that you want to understand. Therefore, for example, the pellets of the resin composition itself can be the object of observation.
なお、カーボンブラック（Ｂ）の前記変動係数の値が０．５２以下であるものであれば、樹脂組成物のペレット、及びその成形体も、本実施形態の樹脂組成物の概念に包含される。
In addition, as long as the value of the coefficient of variation of carbon black (B) is 0.52 or less, pellets of the resin composition and molded products thereof are also included in the concept of the resin composition of the present embodiment. .
カーボンブラックは、炭素主体の微粒子成分であり、その例としては、ファーネスブラック、ケッチェンブラック、チャンネルブラック、アセチレンブラック、ランプブラックが挙げられ、ファーネスブラック又はケッチェンブラックが好ましく、ファーネスブラックがより好ましい。
Carbon black is a fine particle component mainly composed of carbon, and examples thereof include furnace black, Ketjen black, channel black, acetylene black, and lamp black. Furnace black or Ketjen black is preferable, and furnace black is more preferable. .
カーボンブラックは、導電性カーボンブラックであってもよく、黒色顔料として用いられる着色用カーボンブラックであってもよい。
The carbon black may be conductive carbon black or may be coloring carbon black used as a black pigment.
カーボンブラックの一次粒子径は、一例として、１００ｎｍ以下であってよく、５～１００ｎｍであってよく、１０～６０ｎｍであってよい。
The primary particle size of carbon black may be, for example, 100 nm or less, 5 to 100 nm, or 10 to 60 nm.
カーボンブラックの一次粒子径は、透過型電子顕微鏡を用いて、カーボンブラックを倍率２００００倍で観察し、任意のカーボンブラック粒子１０００個の一次粒子の直径（非球状粒子では最長径）を測定し、その数平均値を求めることにより算出できる。
The primary particle diameter of carbon black is determined by observing carbon black at a magnification of 20,000 times using a transmission electron microscope, and measuring the diameter of the primary particles of 1,000 arbitrary carbon black particles (the longest diameter for non-spherical particles). It can be calculated by finding the numerical average value.
カーボンブラックのＤＢＰ（Ｄｉｂｕｔｙｌ ｐｈｔｈａｌａｔｅ）吸油量は、例えば、３０～５５０ｍＬ／１００ｇであってもよく、５０～５００ｍＬ／１００ｇであってもよい。
The DBP (dibutyl phthalate) oil absorption amount of carbon black may be, for example, 30 to 550 mL/100 g, or 50 to 500 mL/100 g.
ＤＢＰ吸油量はＪＩＳ Ｋ ６２１７－４に準拠して測定できる。
DBP oil absorption can be measured in accordance with JIS K 6217-4.
カーボンブラックのｐＨは、６．０～１０．０であってもよく、７．０～９．０であってもよい。
The pH of carbon black may be 6.0 to 10.0, or 7.0 to 9.0.
カーボンブラックのｐＨの測定は、ＪＩＳ Ｋ６２２１－１９８２に準拠して測定できる。
The pH of carbon black can be measured in accordance with JIS K6221-1982.
カーボンブラックの揮発成分量は、０．５重量％以上５重量％以下であってもよく、１重量％以上５重量％以下であってもよい。
揮発成分量は、カーボンブラックの表面の官能基量を反映する。揮発成分量の値が上記数値範囲内にあるカーボンブラックは、芳香族ポリスルホン（Ａ）の前記水酸基との相互作用によるカーボンブラックの分散性の向上効果が、より良好に発揮されるものと考えられる。 The amount of volatile components of carbon black may be 0.5% by weight or more and 5% by weight or less, or 1% by weight or more and 5% by weight or less.
The amount of volatile components reflects the amount of functional groups on the surface of carbon black. It is considered that carbon black whose volatile component amount is within the above numerical range exhibits better dispersibility improvement effect of carbon black due to interaction with the hydroxyl group of aromatic polysulfone (A). .
揮発成分量は、カーボンブラックの表面の官能基量を反映する。揮発成分量の値が上記数値範囲内にあるカーボンブラックは、芳香族ポリスルホン（Ａ）の前記水酸基との相互作用によるカーボンブラックの分散性の向上効果が、より良好に発揮されるものと考えられる。 The amount of volatile components of carbon black may be 0.5% by weight or more and 5% by weight or less, or 1% by weight or more and 5% by weight or less.
The amount of volatile components reflects the amount of functional groups on the surface of carbon black. It is considered that carbon black whose volatile component amount is within the above numerical range exhibits better dispersibility improvement effect of carbon black due to interaction with the hydroxyl group of aromatic polysulfone (A). .
本明細書におけるカーボンブラックの揮発成分とは、カーボンブラックをるつぼに入れて、９５０℃で７分間加熱したときに、カーボンブラックの表面官能基が脱離して発生する成分であり、ＣＯ、ＣＯ２、Ｈ２Ｏなどである。該揮発成分量は、前記加熱前後のそれぞれのカーボンブラックの重量を下式に代入して算出される。
揮発成分量（％）＝１００×（加熱前のカーボンブラックの重量－加熱後のカーボンブラックの重量）／加熱前のカーボンブラックの重量 In this specification, the volatile components of carbon black are components generated when carbon black is placed in a crucible and heated at 950°C for 7 minutes, and the surface functional groups of carbon black are desorbed, such as CO, CO 2 , H2O , and the like. The amount of volatile components is calculated by substituting the weights of the carbon black before and after the heating into the formula below.
Volatile component amount (%) = 100 x (weight of carbon black before heating - weight of carbon black after heating) / weight of carbon black before heating
揮発成分量（％）＝１００×（加熱前のカーボンブラックの重量－加熱後のカーボンブラックの重量）／加熱前のカーボンブラックの重量 In this specification, the volatile components of carbon black are components generated when carbon black is placed in a crucible and heated at 950°C for 7 minutes, and the surface functional groups of carbon black are desorbed, such as CO, CO 2 , H2O , and the like. The amount of volatile components is calculated by substituting the weights of the carbon black before and after the heating into the formula below.
Volatile component amount (%) = 100 x (weight of carbon black before heating - weight of carbon black after heating) / weight of carbon black before heating
カーボンブラックの比表面積は、２０～１５００ｍ２/ｇであってよく、１００～５００ｍ２／ｇであってよい。
比表面積の値が小さいほど、カーボンブラック同士の凝集力が小さくなるため、上記数値範囲内にあるカーボンブラックは、カーボンブラックの分散性の向上効果が、より良好に発揮されるものと考えられる。 The specific surface area of carbon black may be 20 to 1500 m 2 /g, or 100 to 500 m 2 /g.
Since the smaller the value of the specific surface area, the smaller the cohesive force between carbon blacks, it is thought that carbon blacks within the above numerical range can better exhibit the effect of improving the dispersibility of carbon black.
比表面積の値が小さいほど、カーボンブラック同士の凝集力が小さくなるため、上記数値範囲内にあるカーボンブラックは、カーボンブラックの分散性の向上効果が、より良好に発揮されるものと考えられる。 The specific surface area of carbon black may be 20 to 1500 m 2 /g, or 100 to 500 m 2 /g.
Since the smaller the value of the specific surface area, the smaller the cohesive force between carbon blacks, it is thought that carbon blacks within the above numerical range can better exhibit the effect of improving the dispersibility of carbon black.
カーボンブラックの比表面積とは、窒素吸着比表面積をいう。この窒素吸着比表面積の測定は、試料表面に付着したガスなどを事前に取り除き、この試料に、液体窒素温度で窒素を吸着して、この吸着量から比表面積を算出できる。
具体的には、ＪＩＳ Ｋ６２１７－２：２００１に従い、ＢＥＴ比表面積測定器（例えばＭｉｃｒｏｍｅｒｉｔｉｃｓ社製のＡｃｃｕＳｏｒｂ ２１００Ｅ）を用いて、液体窒素温度下で窒素ガスを吸着させ、吸着量を測定し、ＢＥＴ法で算出できる。 The specific surface area of carbon black refers to the nitrogen adsorption specific surface area. To measure the nitrogen adsorption specific surface area, gas adhering to the sample surface is removed in advance, nitrogen is adsorbed onto the sample at liquid nitrogen temperature, and the specific surface area can be calculated from the amount of adsorption.
Specifically, in accordance with JIS K6217-2:2001, nitrogen gas is adsorbed at liquid nitrogen temperature using a BET specific surface area measuring device (for example, AccuSorb 2100E manufactured by Micromeritics), the amount of adsorption is measured, and the BET method is performed. It can be calculated by
具体的には、ＪＩＳ Ｋ６２１７－２：２００１に従い、ＢＥＴ比表面積測定器（例えばＭｉｃｒｏｍｅｒｉｔｉｃｓ社製のＡｃｃｕＳｏｒｂ ２１００Ｅ）を用いて、液体窒素温度下で窒素ガスを吸着させ、吸着量を測定し、ＢＥＴ法で算出できる。 The specific surface area of carbon black refers to the nitrogen adsorption specific surface area. To measure the nitrogen adsorption specific surface area, gas adhering to the sample surface is removed in advance, nitrogen is adsorbed onto the sample at liquid nitrogen temperature, and the specific surface area can be calculated from the amount of adsorption.
Specifically, in accordance with JIS K6217-2:2001, nitrogen gas is adsorbed at liquid nitrogen temperature using a BET specific surface area measuring device (for example, AccuSorb 2100E manufactured by Micromeritics), the amount of adsorption is measured, and the BET method is performed. It can be calculated by
実施形態の樹脂組成物に含有される、芳香族ポリスルホン（Ａ）１００質量部に対する、カーボンブラック（Ｂ）の含有量は、０．１～５０００質量部であってよく、０．５～４０００質量部であってよく、０．５～３０００質量部であってよく、０．５～５００質量部であってよい。
The content of carbon black (B) with respect to 100 parts by mass of aromatic polysulfone (A) contained in the resin composition of the embodiment may be 0.1 to 5000 parts by mass, and may be 0.5 to 4000 parts by mass. parts, may be 0.5 to 3000 parts by weight, and may be 0.5 to 500 parts by weight.
前記樹脂組成物の総質量（１００質量％）に対する、前記カーボンブラック（Ｂ）の含有量の割合は、０．０１質量％以上２０質量％未満が好ましく、０．１質量％以上１５質量％以下がより好ましく、０．２質量％以上１０質量％以下がさらに好ましく、０．２質量％以上８質量％以下が特に好ましい。
The content ratio of the carbon black (B) to the total mass (100 mass%) of the resin composition is preferably 0.01 mass% or more and less than 20 mass%, and 0.1 mass% or more and 15 mass% or less. is more preferable, more preferably 0.2% by mass or more and 10% by mass or less, particularly preferably 0.2% by mass or more and 8% by mass or less.
別の側面において、樹脂組成物が樹脂（Ｃ）を含む場合、実施形態の樹脂組成物は、樹脂組成物における芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、及び樹脂（Ｃ）の総和（１００質量％）に対して、前記カーボンブラック（Ｂ）の含有量の割合は、０．０１質量％以上２０質量％未満が好ましく、０．１質量％以上１５質量％以下がより好ましく、０．２質量％以上１０質量％以下がさらに好ましく、０．２質量％以上８質量％以下が特に好ましい。
In another aspect, when the resin composition includes resin (C), the resin composition of the embodiment has a total of aromatic polysulfone (A), carbon black (B), and resin (C) in the resin composition ( 100% by mass), the content ratio of the carbon black (B) is preferably 0.01% by mass or more and less than 20% by mass, more preferably 0.1% by mass or more and 15% by mass or less, and 0.1% by mass or more and less than 15% by mass. It is more preferably 2% by mass or more and 10% by mass or less, and particularly preferably 0.2% by mass or more and 8% by mass or less.
＜樹脂（Ｃ）＞
樹脂（Ｃ）は、前記芳香族ポリスルホン（Ａ）に該当しない樹脂であれば特に制限されるものではなく、熱可塑性樹脂であることが好ましい。 <Resin (C)>
The resin (C) is not particularly limited as long as it is a resin that does not fall under the aromatic polysulfone (A), and is preferably a thermoplastic resin.
樹脂（Ｃ）は、前記芳香族ポリスルホン（Ａ）に該当しない樹脂であれば特に制限されるものではなく、熱可塑性樹脂であることが好ましい。 <Resin (C)>
The resin (C) is not particularly limited as long as it is a resin that does not fall under the aromatic polysulfone (A), and is preferably a thermoplastic resin.
熱可塑性樹脂は、加熱による軟化と冷却による固化とを、加熱と冷却とを繰り返したときに可逆的に起こす樹脂である。熱可塑性樹脂は、液晶性熱可塑性樹脂（Ｃ１）と結晶性熱可塑性樹脂（Ｃ２）と非晶性熱可塑性樹脂（Ｃ３）とに大別することができる。
A thermoplastic resin is a resin that reversibly softens by heating and solidifies by cooling when heating and cooling are repeated. Thermoplastic resins can be roughly classified into liquid crystalline thermoplastic resins (C1), crystalline thermoplastic resins (C2), and amorphous thermoplastic resins (C3).
＜液晶性熱可塑性樹脂（Ｃ１）＞
液晶性熱可塑性樹脂（Ｃ１）は、溶融時に光学異方性を示し、４５０℃以下の温度で異方性溶融体を形成する樹脂である。この光学的異方性は、直交偏光子を利用した通常の偏光検査法によって確認することができる。液晶性熱可塑性樹脂（Ｃ１）は、その分子形状が細長く、扁平で分子の長鎖に沿って剛性が高い分子鎖（この剛性が高い分子鎖は通常「メソゲン基」と呼称されている）を有するものであり、かかるメソゲン基を高分子主鎖又は側鎖のいずれか一方又は両方に有するものであるが、より高耐熱性を求めるならば、高分子主鎖にメソゲン基を有するものであることが好ましい。 <Liquid crystalline thermoplastic resin (C1)>
The liquid crystal thermoplastic resin (C1) is a resin that exhibits optical anisotropy when melted and forms an anisotropic melt at a temperature of 450° C. or lower. This optical anisotropy can be confirmed by a normal polarization test method using crossed polarizers. The liquid crystalline thermoplastic resin (C1) has an elongated and flat molecular shape, and has highly rigid molecular chains along the long molecular chains (this highly rigid molecular chain is usually called a "mesogenic group"). It has such a mesogenic group in either the polymer main chain or side chain, or both, but if higher heat resistance is desired, it has a mesogenic group in the polymer main chain. It is preferable.
液晶性熱可塑性樹脂（Ｃ１）は、溶融時に光学異方性を示し、４５０℃以下の温度で異方性溶融体を形成する樹脂である。この光学的異方性は、直交偏光子を利用した通常の偏光検査法によって確認することができる。液晶性熱可塑性樹脂（Ｃ１）は、その分子形状が細長く、扁平で分子の長鎖に沿って剛性が高い分子鎖（この剛性が高い分子鎖は通常「メソゲン基」と呼称されている）を有するものであり、かかるメソゲン基を高分子主鎖又は側鎖のいずれか一方又は両方に有するものであるが、より高耐熱性を求めるならば、高分子主鎖にメソゲン基を有するものであることが好ましい。 <Liquid crystalline thermoplastic resin (C1)>
The liquid crystal thermoplastic resin (C1) is a resin that exhibits optical anisotropy when melted and forms an anisotropic melt at a temperature of 450° C. or lower. This optical anisotropy can be confirmed by a normal polarization test method using crossed polarizers. The liquid crystalline thermoplastic resin (C1) has an elongated and flat molecular shape, and has highly rigid molecular chains along the long molecular chains (this highly rigid molecular chain is usually called a "mesogenic group"). It has such a mesogenic group in either the polymer main chain or side chain, or both, but if higher heat resistance is desired, it has a mesogenic group in the polymer main chain. It is preferable.
液晶性熱可塑性樹脂（Ｃ１）の例としては、液晶性ポリエステル、液晶性ポリエステルアミド、液晶性ポリエステルエーテル、液晶性ポリエステルカーボネート、液晶性ポリエステルイミド、液晶性ポリアミドが挙げられる。中でも、高強度の樹脂成形体が得られる点で、液晶性ポリエステル、液晶性ポリエステルアミド、液晶性ポリアミドが好ましく、より低吸水性の成形体が得られる点で、液晶性ポリエステル、液晶性ポリエステルアミドが好ましい。
Examples of the liquid crystal thermoplastic resin (C1) include liquid crystal polyester, liquid crystal polyester amide, liquid crystal polyester ether, liquid crystal polyester carbonate, liquid crystal polyester imide, and liquid crystal polyamide. Among them, liquid crystalline polyester, liquid crystalline polyesteramide, and liquid crystalline polyamide are preferable because they yield a resin molded product with high strength, and liquid crystalline polyester and liquid crystalline polyesteramide are preferred because they yield a molded product with lower water absorption. is preferred.
＜結晶性熱可塑性樹脂（Ｃ２）＞
結晶性熱可塑性樹脂（Ｃ２）とは、分子構造の中に長い鎖状の分子が規則的に並んだ結晶性領域と、規則的に並んでいない非結晶領域とが混在した樹脂をいう。その例としては、ポリエチレン、ポリプロピレン、ポリアセタール、ポリブチレンテレフタレート（ＰＢＴ）、ポリエチレンテレフタレート（ＰＥＴ）、ポリフェニレンスルフィド（ＰＰＳ）、ポリイミド（ＰＩ）、ポリエーテルエーテルケトン（ＰＥＥＫ）、ポリエーテルニトリル（ＰＥＮ）、脂肪族ポリアミド、半芳香族ポリアミド、芳香族ポリアミドが挙げられる。 <Crystalline thermoplastic resin (C2)>
The crystalline thermoplastic resin (C2) refers to a resin in which the molecular structure includes a mixture of crystalline regions in which long chain molecules are regularly arranged and non-crystalline regions in which they are not regularly arranged. Examples include polyethylene, polypropylene, polyacetal, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyimide (PI), polyetheretherketone (PEEK), polyethernitrile (PEN), Examples include aliphatic polyamide, semi-aromatic polyamide, and aromatic polyamide.
結晶性熱可塑性樹脂（Ｃ２）とは、分子構造の中に長い鎖状の分子が規則的に並んだ結晶性領域と、規則的に並んでいない非結晶領域とが混在した樹脂をいう。その例としては、ポリエチレン、ポリプロピレン、ポリアセタール、ポリブチレンテレフタレート（ＰＢＴ）、ポリエチレンテレフタレート（ＰＥＴ）、ポリフェニレンスルフィド（ＰＰＳ）、ポリイミド（ＰＩ）、ポリエーテルエーテルケトン（ＰＥＥＫ）、ポリエーテルニトリル（ＰＥＮ）、脂肪族ポリアミド、半芳香族ポリアミド、芳香族ポリアミドが挙げられる。 <Crystalline thermoplastic resin (C2)>
The crystalline thermoplastic resin (C2) refers to a resin in which the molecular structure includes a mixture of crystalline regions in which long chain molecules are regularly arranged and non-crystalline regions in which they are not regularly arranged. Examples include polyethylene, polypropylene, polyacetal, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyimide (PI), polyetheretherketone (PEEK), polyethernitrile (PEN), Examples include aliphatic polyamide, semi-aromatic polyamide, and aromatic polyamide.
＜非晶性熱可塑性樹脂（Ｃ３）＞
非晶性熱可塑性樹脂（Ｃ３）は、実質的に、分子構造の中に長い鎖状の分子が規則的に並んだ結晶性領域が存在せず、規則的に並んでいない非結晶領域のみで構成された樹脂であり。その例としては、ポリスルホン系樹脂、ポリスチレン、ポリカーボネート、ポリエーテルイミド、ポリアミドイミドが挙げられる。 <Amorphous thermoplastic resin (C3)>
Amorphous thermoplastic resin (C3) has substantially no crystalline regions in which long chain molecules are regularly arranged in its molecular structure, and only non-crystalline regions that are not regularly arranged. It is made up of resin. Examples include polysulfone resin, polystyrene, polycarbonate, polyetherimide, and polyamideimide.
非晶性熱可塑性樹脂（Ｃ３）は、実質的に、分子構造の中に長い鎖状の分子が規則的に並んだ結晶性領域が存在せず、規則的に並んでいない非結晶領域のみで構成された樹脂であり。その例としては、ポリスルホン系樹脂、ポリスチレン、ポリカーボネート、ポリエーテルイミド、ポリアミドイミドが挙げられる。 <Amorphous thermoplastic resin (C3)>
Amorphous thermoplastic resin (C3) has substantially no crystalline regions in which long chain molecules are regularly arranged in its molecular structure, and only non-crystalline regions that are not regularly arranged. It is made up of resin. Examples include polysulfone resin, polystyrene, polycarbonate, polyetherimide, and polyamideimide.
樹脂（Ｃ）は、前記芳香族ポリスルホンに該当しない樹脂であってよく、芳香族ポリスルホンに該当せずかつ分子内に水酸基を含有しない熱可塑性樹脂であってもよい。
The resin (C) may be a resin that does not fall under the above-mentioned aromatic polysulfone, or may be a thermoplastic resin that does not fall under the aromatic polysulfone and does not contain a hydroxyl group in its molecule.
一方で、芳香族ポリスルホン（Ａ）との親和性が良好であると考えられることから、樹脂（Ｃ）は、ポリスルホン系樹脂であることが好ましい。
On the other hand, the resin (C) is preferably a polysulfone-based resin since it is considered to have good affinity with the aromatic polysulfone (A).
なお、本明細書において「ポリスルホン系樹脂」とは、２価の芳香族基と、スルホニル基（－ＳＯ２－）とを含む繰返し単位を有する樹脂である。２価の芳香族基としては、前記繰り返し単位（１）において例示したフェニレン基が好ましく、前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基又は水酸基で置換されていてもよい。
ポリスルホン系樹脂としては、前記芳香族ポリスルホンを例示できる。 In this specification, the term "polysulfone resin" refers to a resin having a repeating unit containing a divalent aromatic group and a sulfonyl group (-SO 2 -). As the divalent aromatic group, the phenylene group exemplified in the repeating unit (1) is preferable, and the hydrogen atoms in the phenylene group are each independently an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group. , an amino group, a carboxyl group, or a hydroxyl group.
As the polysulfone resin, the above-mentioned aromatic polysulfone can be exemplified.
ポリスルホン系樹脂としては、前記芳香族ポリスルホンを例示できる。 In this specification, the term "polysulfone resin" refers to a resin having a repeating unit containing a divalent aromatic group and a sulfonyl group (-SO 2 -). As the divalent aromatic group, the phenylene group exemplified in the repeating unit (1) is preferable, and the hydrogen atoms in the phenylene group are each independently an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group. , an amino group, a carboxyl group, or a hydroxyl group.
As the polysulfone resin, the above-mentioned aromatic polysulfone can be exemplified.
ポリスルホン系樹脂のなかでも、樹脂（Ｃ）としては、前記芳香族ポリスルホン（Ａ）に該当しない芳香族ポリスルホン（ｃ）（２価の芳香族基と、エーテル結合（－Ｏ－）と、スルホニル基（－ＳＯ２－）とを含む繰返し単位を有する樹脂）が好ましい。
Among polysulfone-based resins, the resin (C) includes aromatic polysulfones (c) (including divalent aromatic groups, ether bonds (-O-), and sulfonyl groups) that do not fall under the aromatic polysulfones (A). A resin having a repeating unit containing (-SO 2 -)) is preferred.
樹脂（Ｃ）が芳香族ポリスルホン（ｃ）である場合、芳香族ポリスルホン（Ａ）の水酸基含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上４０×１０－５モル以下であり、前記芳香族ポリスルホン（Ａ）に該当しない樹脂（Ｃ）としての芳香族ポリスルホン（ｃ）とは、芳香族ポリスルホン（ｃ）の分子内に有する水酸基の含有量が、芳香族ポリスルホン（ｃ）１ｇあたり１×１０－５モル未満である芳香族ポリスルホンとする。
When the resin (C) is an aromatic polysulfone (c), the hydroxyl group content of the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A). The aromatic polysulfone (c) as the resin (C) which does not correspond to the aromatic polysulfone (A) means that the content of hydroxyl groups in the molecule of the aromatic polysulfone (c) is higher than that of the aromatic polysulfone (c). ) Aromatic polysulfone with less than 1×10 −5 moles per gram.
本実施形態の樹脂組成物の一例として、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、前記芳香族ポリスルホン（Ａ）以外の芳香族ポリスルホン（ｃ）と、を含み、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上４０×１０－５モル以下であり、前記芳香族ポリスルホン（ｃ）の前記水酸基の含有量は、前記芳香族ポリスルホン（ｃ）１ｇあたり１×１０－５モル未満であり、前記カーボンブラック（Ｂ）の領域間の重心間距離の変動係数が０．５２以下である、樹脂組成物を例示できる。
An example of the resin composition of the present embodiment includes aromatic polysulfone (A), carbon black (B), and aromatic polysulfone (c) other than the aromatic polysulfone (A), and the aromatic polysulfone (A) has a hydroxyl group in its molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A). The content of the hydroxyl groups in the aromatic polysulfone (c) is less than 1×10 −5 mol per 1 g of the aromatic polysulfone (c), and the distance between the centers of gravity between the regions of the carbon black (B) is Examples include resin compositions having a coefficient of variation of 0.52 or less.
樹脂（Ｃ）が芳香族ポリスルホンである場合、前記芳香族ポリスルホン（ｃ）の前記水酸基の含有量は、前記芳香族ポリスルホン（ｃ）１ｇあたり１×１０－５モル未満であり、５×１０－６モル以下であってよく、３×１０－６モル以下であってよく、２×１０－６モル以下であってよい。
When the resin (C) is an aromatic polysulfone, the content of the hydroxyl groups in the aromatic polysulfone (c) is less than 1 x 10 -5 mol per 1 g of the aromatic polysulfone (c), and 5 x 10 - It may be 6 mol or less, it may be 3×10 −6 mol or less, and it may be 2×10 −6 mol or less.
上記芳香族ポリスルホン（Ａ）及び芳香族ポリスルホン（ｃ）の水酸基の含有量の組み合わせとしては、
前記芳香族ポリスルホン（Ａ）の水酸基の含有量が、芳香族ポリスルホン（Ａ）１ｇあたり６×１０－５モル以上４０×１０－５モル以下で、芳香族ポリスルホン（ｃ）の水酸基の含有量が、芳香族ポリスルホン（ｃ）１ｇあたり５×１０－６モル以下であってよく、
前記芳香族ポリスルホン（Ａ）の水酸基の含有量が、芳香族ポリスルホン（Ａ）１ｇあたり８×１０－５モル以上２０×１０－５モル以下で、芳香族ポリスルホン（ｃ）の水酸基の含有量が、芳香族ポリスルホン（ｃ）１ｇあたり３×１０－６モル以下であってよく、
前記芳香族ポリスルホン（Ａ）の水酸基の含有量が、芳香族ポリスルホン（Ａ）１ｇあたり８×１０－５モル以上１０×１０－５モル以下で、芳香族ポリスルホン（ｃ）の水酸基の含有量が、芳香族ポリスルホン（ｃ）１ｇあたり２×１０－６モル以下であってよい。 The combination of the hydroxyl group contents of the aromatic polysulfone (A) and the aromatic polysulfone (c) is as follows:
The content of hydroxyl groups in the aromatic polysulfone (A) is 6 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of aromatic polysulfone (A), and the content of hydroxyl groups in the aromatic polysulfone (c) is , may be 5×10 −6 mol or less per 1 g of aromatic polysulfone (c),
The content of hydroxyl groups in the aromatic polysulfone (A) is 8 x 10 -5 mol or more and 20 x 10 -5 mol or less per 1 g of aromatic polysulfone (A), and the content of hydroxyl groups in the aromatic polysulfone (c) is , may be 3×10 −6 mol or less per 1 g of aromatic polysulfone (c),
The content of hydroxyl groups in the aromatic polysulfone (A) is 8 x 10 -5 mol or more and 10 x 10 -5 mol or less per 1 g of aromatic polysulfone (A), and the content of hydroxyl groups in the aromatic polysulfone (c) is , the amount may be 2×10 −6 mol or less per gram of aromatic polysulfone (c).
前記芳香族ポリスルホン（Ａ）の水酸基の含有量が、芳香族ポリスルホン（Ａ）１ｇあたり６×１０－５モル以上４０×１０－５モル以下で、芳香族ポリスルホン（ｃ）の水酸基の含有量が、芳香族ポリスルホン（ｃ）１ｇあたり５×１０－６モル以下であってよく、
前記芳香族ポリスルホン（Ａ）の水酸基の含有量が、芳香族ポリスルホン（Ａ）１ｇあたり８×１０－５モル以上２０×１０－５モル以下で、芳香族ポリスルホン（ｃ）の水酸基の含有量が、芳香族ポリスルホン（ｃ）１ｇあたり３×１０－６モル以下であってよく、
前記芳香族ポリスルホン（Ａ）の水酸基の含有量が、芳香族ポリスルホン（Ａ）１ｇあたり８×１０－５モル以上１０×１０－５モル以下で、芳香族ポリスルホン（ｃ）の水酸基の含有量が、芳香族ポリスルホン（ｃ）１ｇあたり２×１０－６モル以下であってよい。 The combination of the hydroxyl group contents of the aromatic polysulfone (A) and the aromatic polysulfone (c) is as follows:
The content of hydroxyl groups in the aromatic polysulfone (A) is 6 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of aromatic polysulfone (A), and the content of hydroxyl groups in the aromatic polysulfone (c) is , may be 5×10 −6 mol or less per 1 g of aromatic polysulfone (c),
The content of hydroxyl groups in the aromatic polysulfone (A) is 8 x 10 -5 mol or more and 20 x 10 -5 mol or less per 1 g of aromatic polysulfone (A), and the content of hydroxyl groups in the aromatic polysulfone (c) is , may be 3×10 −6 mol or less per 1 g of aromatic polysulfone (c),
The content of hydroxyl groups in the aromatic polysulfone (A) is 8 x 10 -5 mol or more and 10 x 10 -5 mol or less per 1 g of aromatic polysulfone (A), and the content of hydroxyl groups in the aromatic polysulfone (c) is , the amount may be 2×10 −6 mol or less per gram of aromatic polysulfone (c).
同様に、樹脂（Ｃ）の前記水酸基の含有量は、前記樹脂（Ｃ）１ｇあたり１×１０－５モル未満であってよく、５×１０－６モル以下であってよく、３×１０－６モル以下であってよく、２×１０－６モル以下であってよい。
Similarly, the content of the hydroxyl groups in the resin (C) may be less than 1×10 −5 mol, and may be 5×10 −6 mol or less, and may be 3×10 −6 mol or less per 1 g of the resin (C) . It may be 6 moles or less, and may be 2×10 −6 moles or less.
前記芳香族ポリスルホン（Ａ）に該当しない芳香族ポリスルホン（ｃ）としては、ポリエーテルスルホン、ポリスルホン、変性ポリスルホン、及びポリフェニルスルホンからなる群から選ばれる少なくとも一種であることが好ましく、ポリエーテルスルホン又はポリフェニルスルホンであることがより好ましく、ポリエーテルスルホンであることがさらに好ましい。
The aromatic polysulfone (c) that does not fall under the aromatic polysulfone (A) is preferably at least one selected from the group consisting of polyethersulfone, polysulfone, modified polysulfone, and polyphenylsulfone, and polyethersulfone or More preferably, it is polyphenylsulfone, and even more preferably polyethersulfone.
樹脂（Ｃ）が芳香族ポリスルホンである場合の、当該芳香族ポリスルホン（ｃ）の還元粘度としては、上記に説明した芳香族ポリスルホン（Ａ）と同様のものを例示できる。 上記の耐久性及び耐摩耗性をより一層向上させる観点から、芳香族ポリスルホン（ｃ）の還元粘度と、芳香族ポリスルホン（Ａ）との還元粘度の差は、一例として０．１２ｄＬ／ｇ以下であることが好ましい。
When the resin (C) is an aromatic polysulfone, examples of the reduced viscosity of the aromatic polysulfone (c) include those similar to those of the aromatic polysulfone (A) described above. From the viewpoint of further improving the above-mentioned durability and abrasion resistance, the difference in reduced viscosity between aromatic polysulfone (c) and aromatic polysulfone (A) is, for example, 0.12 dL/g or less. It is preferable that there be.
また、耐熱性の観点から、樹脂（Ｃ）としては、ポリエーテルスルホン、ポリスルホン、変性ポリスルホン、ポリフェニルスルホン、液晶性ポリエステル、ポリエーテルエーテルケトン、及び半芳香族ポリアミドからなる群から選ばれる少なくとも一種であることが好ましい。
In addition, from the viewpoint of heat resistance, the resin (C) is at least one selected from the group consisting of polyether sulfone, polysulfone, modified polysulfone, polyphenylsulfone, liquid crystalline polyester, polyether ether ketone, and semi-aromatic polyamide. It is preferable that
特に好ましい組み合わせとして、芳香族ポリスルホン（Ａ）が、繰返し単位として前記繰返し単位（１）のみを有するポリエーテルスルホンであり、樹脂（Ｃ）が、繰返し単位として前記繰返し単位（１）のみを有するポリエーテルスルホン（式（１）中、Ｐｈ１及びＰｈ２は、それぞれ独立に、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基又は水酸基で置換されていてもよい。）である組み合わせを例示できる。
As a particularly preferable combination, the aromatic polysulfone (A) is a polyether sulfone having only the above-mentioned repeating unit (1) as a repeating unit, and the resin (C) is a polyethersulfone having only the above-mentioned repeating unit (1) as a repeating unit. Ethersulfone (in formula (1), Ph 1 and Ph 2 each independently represent a phenylene group. The hydrogen atoms in the phenylene group each independently represent an alkyl group, an aryl group, a halogen atom, a sulfo group, (Optionally substituted with a nitro group, an amino group, a carboxyl group, or a hydroxyl group).
別の、特に好ましい組み合わせとして、芳香族ポリスルホン（Ａ）が、繰返し単位として前記繰返し単位（１）のみを有するポリエーテルスルホンであり、樹脂（Ｃ）が、繰返し単位として下記繰返し単位（８）のみを有するポリフェニルスルホンである組み合わせを例示できる。
Another particularly preferred combination is that the aromatic polysulfone (A) is a polyether sulfone having only the above-mentioned repeating unit (1) as a repeating unit, and the resin (C) has only the following repeating unit (8) as a repeating unit. An example of the combination is a polyphenylsulfone having the following.
（８）－Ｐｈ６－ＳＯ２－Ｐｈ７－Ｏ－Ｐｈ８－Ｐｈ９－Ｏ－
［式中、Ｐｈ６、Ｐｈ７、Ｐｈ８、及びＰｈ９は、それぞれ独立に、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基又はハロゲン原子で置換されていてもよい。］ (8) -Ph 6 -SO 2 -Ph 7 -O-Ph 8 -Ph 9 -O-
[In the formula, Ph 6 , Ph 7 , Ph 8 and Ph 9 each independently represent a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, or a halogen atom. ]
［式中、Ｐｈ６、Ｐｈ７、Ｐｈ８、及びＰｈ９は、それぞれ独立に、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基又はハロゲン原子で置換されていてもよい。］ (8) -Ph 6 -SO 2 -Ph 7 -O-Ph 8 -Ph 9 -O-
[In the formula, Ph 6 , Ph 7 , Ph 8 and Ph 9 each independently represent a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, or a halogen atom. ]
上記式（８）における、フェニレン基、アルキル基、アリール基又はハロゲン原子としては、上記の芳香族ポリスルホン（Ａ）における、繰り返し単位（１）で例示したものと同一のものを例示できる。
As the phenylene group, alkyl group, aryl group, or halogen atom in the above formula (8), the same ones as those exemplified in the repeating unit (1) in the above aromatic polysulfone (A) can be exemplified.
前記樹脂組成物の総質量（１００質量％）に対する、前記樹脂（Ｃ）の含有量の割合は、５０質量％以上であることが好ましい。
The content ratio of the resin (C) to the total mass (100 mass%) of the resin composition is preferably 50 mass% or more.
実施形態の樹脂組成物の一例としては、前記樹脂組成物の総質量（１００質量％）に対して、
芳香族ポリスルホン（Ａ）を０．０１質量％以上３０質量％未満含有し、カーボンブラック（Ｂ）を０．０１質量％以上２０質量％未満含有し、樹脂（Ｃ）を５０質量％以上９９．９８質量％以下含有してもよく、
芳香族ポリスルホン（Ａ）を、０．５質量％以上３０質量％未満含有し、カーボンブラック（Ｂ）を０．１質量％以上１５質量％以下含有し、樹脂（Ｃ）を５５質量％以上９９．４質量％以下含有してもよく、
芳香族ポリスルホン（Ａ）を０．５～１５質量％含有し、カーボンブラック（Ｂ）を０．２質量％以上１０質量％以下含有し、樹脂（Ｃ）を７５質量％以上９９．３質量％以下含有してもよく、
芳香族ポリスルホン（Ａ）を０．５～１０質量％含有し、カーボンブラック（Ｂ）を０．２質量％以上１０質量％以下含有し、樹脂（Ｃ）を８０質量％以上９９．３質量％以下含有してもよい。 As an example of the resin composition of the embodiment, based on the total mass (100% by mass) of the resin composition,
Contains aromatic polysulfone (A) from 0.01% by mass to less than 30% by mass, carbon black (B) from 0.01% by mass to less than 20% by mass, and resin (C) from 50% by mass to 99% by mass. May contain up to 98% by mass,
Contains aromatic polysulfone (A) from 0.5% by mass to less than 30% by mass, contains carbon black (B) from 0.1% by mass to 15% by mass, and contains resin (C) from 55% by mass to 99%. .4% by mass or less may be contained,
Contains aromatic polysulfone (A) from 0.5 to 15% by mass, carbon black (B) from 0.2% by mass to 10% by mass, and resin (C) from 75% by mass to 99.3% by mass. It may contain the following:
Contains aromatic polysulfone (A) from 0.5 to 10% by mass, carbon black (B) from 0.2% by mass to 10% by mass, and resin (C) from 80% by mass to 99.3% by mass. The following may be contained.
芳香族ポリスルホン（Ａ）を０．０１質量％以上３０質量％未満含有し、カーボンブラック（Ｂ）を０．０１質量％以上２０質量％未満含有し、樹脂（Ｃ）を５０質量％以上９９．９８質量％以下含有してもよく、
芳香族ポリスルホン（Ａ）を、０．５質量％以上３０質量％未満含有し、カーボンブラック（Ｂ）を０．１質量％以上１５質量％以下含有し、樹脂（Ｃ）を５５質量％以上９９．４質量％以下含有してもよく、
芳香族ポリスルホン（Ａ）を０．５～１５質量％含有し、カーボンブラック（Ｂ）を０．２質量％以上１０質量％以下含有し、樹脂（Ｃ）を７５質量％以上９９．３質量％以下含有してもよく、
芳香族ポリスルホン（Ａ）を０．５～１０質量％含有し、カーボンブラック（Ｂ）を０．２質量％以上１０質量％以下含有し、樹脂（Ｃ）を８０質量％以上９９．３質量％以下含有してもよい。 As an example of the resin composition of the embodiment, based on the total mass (100% by mass) of the resin composition,
Contains aromatic polysulfone (A) from 0.01% by mass to less than 30% by mass, carbon black (B) from 0.01% by mass to less than 20% by mass, and resin (C) from 50% by mass to 99% by mass. May contain up to 98% by mass,
Contains aromatic polysulfone (A) from 0.5% by mass to less than 30% by mass, contains carbon black (B) from 0.1% by mass to 15% by mass, and contains resin (C) from 55% by mass to 99%. .4% by mass or less may be contained,
Contains aromatic polysulfone (A) from 0.5 to 15% by mass, carbon black (B) from 0.2% by mass to 10% by mass, and resin (C) from 75% by mass to 99.3% by mass. It may contain the following:
Contains aromatic polysulfone (A) from 0.5 to 10% by mass, carbon black (B) from 0.2% by mass to 10% by mass, and resin (C) from 80% by mass to 99.3% by mass. The following may be contained.
＜任意成分＞
実施形態の樹脂組成物には、必要に応じて、芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）及び樹脂（Ｃ）に該当しない、その他の任意成分が含まれていてもよい。その例としては、繊維状フィラー、板状フィラー、球状フィラー、粉状フィラー、異形フィラー、ウイスカーなどのフィラーの他、着色剤、潤滑剤、各種界面活性剤、酸化防止剤、熱安定剤、紫外線吸収剤、帯電防止剤が挙げられる。 <Optional ingredients>
The resin composition of the embodiment may contain other optional components that do not correspond to aromatic polysulfone (A), carbon black (B), and resin (C), as necessary. Examples include fillers such as fibrous fillers, plate fillers, spherical fillers, powder fillers, irregularly shaped fillers, and whiskers, as well as colorants, lubricants, various surfactants, antioxidants, heat stabilizers, and ultraviolet rays. Examples include absorbents and antistatic agents.
実施形態の樹脂組成物には、必要に応じて、芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）及び樹脂（Ｃ）に該当しない、その他の任意成分が含まれていてもよい。その例としては、繊維状フィラー、板状フィラー、球状フィラー、粉状フィラー、異形フィラー、ウイスカーなどのフィラーの他、着色剤、潤滑剤、各種界面活性剤、酸化防止剤、熱安定剤、紫外線吸収剤、帯電防止剤が挙げられる。 <Optional ingredients>
The resin composition of the embodiment may contain other optional components that do not correspond to aromatic polysulfone (A), carbon black (B), and resin (C), as necessary. Examples include fillers such as fibrous fillers, plate fillers, spherical fillers, powder fillers, irregularly shaped fillers, and whiskers, as well as colorants, lubricants, various surfactants, antioxidants, heat stabilizers, and ultraviolet rays. Examples include absorbents and antistatic agents.
（耐久性）
実施形態の樹脂組成物の耐久性は、下記の［引張試験］の下記試験片に対して測定された引張破壊エネルギーを指標とすることができる。下記の引張破壊エネルギーの値が高いほど、耐久性に優れると評価できる。 (durability)
The durability of the resin composition of the embodiment can be determined by the tensile fracture energy measured for the following test piece in the following [Tensile Test]. It can be evaluated that the higher the value of the tensile fracture energy below, the more excellent the durability.
実施形態の樹脂組成物の耐久性は、下記の［引張試験］の下記試験片に対して測定された引張破壊エネルギーを指標とすることができる。下記の引張破壊エネルギーの値が高いほど、耐久性に優れると評価できる。 (durability)
The durability of the resin composition of the embodiment can be determined by the tensile fracture energy measured for the following test piece in the following [Tensile Test]. It can be evaluated that the higher the value of the tensile fracture energy below, the more excellent the durability.
［引張試験］
樹脂組成物を成形材料として、射出成形機（例えば、電気式高性能射出成形機ＮＥＸ５０ＩＶ－５ＥＧ型、日精樹脂工業社製）を使用して、シリンダー温度はノズル３６０℃、前部３６０℃、中部３５０℃、後部３４０℃、金型温度１５０℃、背圧１２ＭＰａ、スクリュー回転数８０ｒｐｍ、射出速度２４ｍｍ/ｓ、射出圧力１５０ＭＰａ、射出時間２秒、保圧１００ＭＰａ、冷却時間３０秒の射出条件によりＩＳＯ試験片Ａ形を取得する。この試験片に対し、ＩＳＯ５２７に準拠し、試験速度５ｍｍ／ｍｉｎにて、２３℃、相対湿度５０％の雰囲気下における、引張破壊エネルギー（Ｊ）を測定する。測定にはテンシロン万能試験機（例えば、エー・アンド・デイ社製、ＲＴＧ－１３１０）を用いる。なお、測定は５サンプルについて行い、その平均値を引張破壊エネルギーの値とする。 [Tensile test]
Using the resin composition as a molding material, an injection molding machine (for example, electric high-performance injection molding machine NEX50IV-5EG model, manufactured by Nissei Jushi Kogyo Co., Ltd.) is used, and the cylinder temperature is 360°C at the nozzle, 360°C at the front, and 360°C at the middle. ISO with injection conditions of 350℃, rear 340℃, mold temperature 150℃, back pressure 12MPa, screw rotation speed 80rpm, injection speed 24mm/s, injection pressure 150MPa, injection time 2 seconds, holding pressure 100MPa, and cooling time 30 seconds. Obtain test piece A type. The tensile fracture energy (J) of this test piece is measured in accordance with ISO527 at a test speed of 5 mm/min at 23° C. and in an atmosphere of 50% relative humidity. For the measurement, a Tensilon universal testing machine (for example, RTG-1310, manufactured by A&D Co., Ltd.) is used. Note that the measurement is performed on 5 samples, and the average value is taken as the value of the tensile fracture energy.
樹脂組成物を成形材料として、射出成形機（例えば、電気式高性能射出成形機ＮＥＸ５０ＩＶ－５ＥＧ型、日精樹脂工業社製）を使用して、シリンダー温度はノズル３６０℃、前部３６０℃、中部３５０℃、後部３４０℃、金型温度１５０℃、背圧１２ＭＰａ、スクリュー回転数８０ｒｐｍ、射出速度２４ｍｍ/ｓ、射出圧力１５０ＭＰａ、射出時間２秒、保圧１００ＭＰａ、冷却時間３０秒の射出条件によりＩＳＯ試験片Ａ形を取得する。この試験片に対し、ＩＳＯ５２７に準拠し、試験速度５ｍｍ／ｍｉｎにて、２３℃、相対湿度５０％の雰囲気下における、引張破壊エネルギー（Ｊ）を測定する。測定にはテンシロン万能試験機（例えば、エー・アンド・デイ社製、ＲＴＧ－１３１０）を用いる。なお、測定は５サンプルについて行い、その平均値を引張破壊エネルギーの値とする。 [Tensile test]
Using the resin composition as a molding material, an injection molding machine (for example, electric high-performance injection molding machine NEX50IV-5EG model, manufactured by Nissei Jushi Kogyo Co., Ltd.) is used, and the cylinder temperature is 360°C at the nozzle, 360°C at the front, and 360°C at the middle. ISO with injection conditions of 350℃, rear 340℃, mold temperature 150℃, back pressure 12MPa, screw rotation speed 80rpm, injection speed 24mm/s, injection pressure 150MPa, injection time 2 seconds, holding pressure 100MPa, and cooling time 30 seconds. Obtain test piece A type. The tensile fracture energy (J) of this test piece is measured in accordance with ISO527 at a test speed of 5 mm/min at 23° C. and in an atmosphere of 50% relative humidity. For the measurement, a Tensilon universal testing machine (for example, RTG-1310, manufactured by A&D Co., Ltd.) is used. Note that the measurement is performed on 5 samples, and the average value is taken as the value of the tensile fracture energy.
実施形態の樹脂組成物の上記の［引張試験］における前記試験片に対して測定された前記引張破壊エネルギーの値は、カーボンブラックの含有量によって大きく異なることから、樹脂組成物の全体量に対し、同一の割合でカーボンブラック（Ｂ）を含有する樹脂組成物同士を比較して評価するとよい。
引張破壊エネルギーを指標とする耐久性の向上は、例えば、芳香族ポリスルホン（Ａ）を含有しない対照サンプルと、当該対照サンプルの樹脂（Ｃ）の一部に代えて、芳香族ポリスルホン（Ａ）を含有する測定サンプルとを用意し、対照サンプルの引張破壊エネルギーの測定値を１００とした場合の、測定サンプルの引張破壊エネルギーの換算値が１００を超えていることで、耐久性の向上を確認できる。 The value of the tensile fracture energy measured for the test piece in the above-mentioned [Tensile test] of the resin composition of the embodiment varies greatly depending on the carbon black content. It is preferable to compare and evaluate resin compositions containing carbon black (B) in the same proportion.
The improvement in durability using tensile fracture energy as an index can be achieved, for example, by comparing a control sample that does not contain aromatic polysulfone (A) and replacing a part of the resin (C) of the control sample with aromatic polysulfone (A). If you prepare a measurement sample containing the sample and set the measured value of the tensile fracture energy of the control sample as 100, you can confirm that the durability has improved by checking that the converted value of the tensile fracture energy of the measurement sample exceeds 100. .
引張破壊エネルギーを指標とする耐久性の向上は、例えば、芳香族ポリスルホン（Ａ）を含有しない対照サンプルと、当該対照サンプルの樹脂（Ｃ）の一部に代えて、芳香族ポリスルホン（Ａ）を含有する測定サンプルとを用意し、対照サンプルの引張破壊エネルギーの測定値を１００とした場合の、測定サンプルの引張破壊エネルギーの換算値が１００を超えていることで、耐久性の向上を確認できる。 The value of the tensile fracture energy measured for the test piece in the above-mentioned [Tensile test] of the resin composition of the embodiment varies greatly depending on the carbon black content. It is preferable to compare and evaluate resin compositions containing carbon black (B) in the same proportion.
The improvement in durability using tensile fracture energy as an index can be achieved, for example, by comparing a control sample that does not contain aromatic polysulfone (A) and replacing a part of the resin (C) of the control sample with aromatic polysulfone (A). If you prepare a measurement sample containing the sample and set the measured value of the tensile fracture energy of the control sample as 100, you can confirm that the durability has improved by checking that the converted value of the tensile fracture energy of the measurement sample exceeds 100. .
対照サンプルの引張破壊エネルギーの測定値を１００とした場合の、実施形態の樹脂組成物を測定サンプルとした前記試験片に対して測定された前記引張破壊エネルギーの換算値は、１００超であってよく、１０５以上であってよく、１２０以上であってよく、１５０以上であってよく、２００以上であってよい。
当該換算値の上限値は、特に制限されるものではないが、５００であってよく、４００であってよく、３００であってよい。すなわち、当該換算値は、５００以下であってよく、４００以下であってよく、３００以下であってよい
当該換算値の数値範囲の一例としては、１００超５００以下であってよく、１０５以上５００以下であってよく、１２０以上５００以下であってよく、１５０以上４００以下であってよく、２００以上３００以下であってよい。 When the measured value of the tensile fracture energy of the control sample is 100, the converted value of the tensile fracture energy measured for the test piece using the resin composition of the embodiment as the measurement sample is more than 100. Typically, it may be 105 or more, it may be 120 or more, it may be 150 or more, it may be 200 or more.
The upper limit of the conversion value is not particularly limited, but may be 500, 400, or 300. That is, the converted value may be 500 or less, 400 or less, or 300 or less. An example of the numerical range of the converted value is more than 100 and less than 500, and 105 or more and 500 or less. It may be 120 or more and 500 or less, 150 or more and 400 or less, and 200 or more and 300 or less.
当該換算値の上限値は、特に制限されるものではないが、５００であってよく、４００であってよく、３００であってよい。すなわち、当該換算値は、５００以下であってよく、４００以下であってよく、３００以下であってよい
当該換算値の数値範囲の一例としては、１００超５００以下であってよく、１０５以上５００以下であってよく、１２０以上５００以下であってよく、１５０以上４００以下であってよく、２００以上３００以下であってよい。 When the measured value of the tensile fracture energy of the control sample is 100, the converted value of the tensile fracture energy measured for the test piece using the resin composition of the embodiment as the measurement sample is more than 100. Typically, it may be 105 or more, it may be 120 or more, it may be 150 or more, it may be 200 or more.
The upper limit of the conversion value is not particularly limited, but may be 500, 400, or 300. That is, the converted value may be 500 or less, 400 or less, or 300 or less. An example of the numerical range of the converted value is more than 100 and less than 500, and 105 or more and 500 or less. It may be 120 or more and 500 or less, 150 or more and 400 or less, and 200 or more and 300 or less.
（耐摩耗性）
実施形態の樹脂組成物の耐摩耗性は、下記の［摩耗試験］の下記試験片に対して測定された比摩耗量を指標とすることができる。下記の比摩耗量の値が小さいほど、耐摩耗性に優れると評価できる。 (wear resistance)
The abrasion resistance of the resin composition of the embodiment can be indexed by the specific wear amount measured on the following test piece in the following [Abrasion Test]. It can be evaluated that the smaller the value of the specific wear amount below, the more excellent the wear resistance is.
実施形態の樹脂組成物の耐摩耗性は、下記の［摩耗試験］の下記試験片に対して測定された比摩耗量を指標とすることができる。下記の比摩耗量の値が小さいほど、耐摩耗性に優れると評価できる。 (wear resistance)
The abrasion resistance of the resin composition of the embodiment can be indexed by the specific wear amount measured on the following test piece in the following [Abrasion Test]. It can be evaluated that the smaller the value of the specific wear amount below, the more excellent the wear resistance is.
［摩耗試験］
樹脂組成物を成形材料として、射出成形機（例えば、射出成形機ＳＥ１００ＥＶ－Ａ型、住友重機械工業社製）を使用して、シリンダー温度はノズル３６０℃、前部３６０℃、中部（１）３６０℃、中部（２）３５０℃、後部３４０℃、金型温度１５０℃、背圧５ＭＰａ、スクリュー回転数８０ｒｐｍ、射出速度３０ｍｍ/ｓ、射出圧力１５０ＭＰａ、射出時間０．８秒、保圧１００ＭＰａ、冷却時間２５秒の射出条件により中空円筒試験片（外径２５．６ｍｍ、内径２０ｍｍ、厚み２０ｍｍ）を取得する。鈴木式摩擦摩耗試験機（例えば、高千穂精機製、リングオンリング）を用い、２３℃に調節された室内にて以下の条件で比摩耗量（ｍｍ３／ｋＮ・ｍ）を測定する。なお、測定は５サンプルについて行い、その平均値を比摩耗量の値とする。試験条件は以下のとおりである。 [Abrasion test]
Using the resin composition as a molding material, an injection molding machine (for example, injection molding machine SE100EV-A type, manufactured by Sumitomo Heavy Industries, Ltd.) is used, and the cylinder temperature is 360°C at the nozzle, 360°C at the front, and 360°C at the middle (1). 360℃, middle (2) 350℃, rear 340℃, mold temperature 150℃, back pressure 5MPa, screw rotation speed 80rpm, injection speed 30mm/s, injection pressure 150MPa, injection time 0.8 seconds, holding pressure 100MPa, A hollow cylindrical test piece (outer diameter 25.6 mm, inner diameter 20 mm, thickness 20 mm) is obtained under injection conditions with a cooling time of 25 seconds. Specific wear amount (mm 3 /kN·m) is measured using a Suzuki friction and wear tester (for example, Takachiho Seiki, Ring-on-Ring) in a room adjusted to 23° C. under the following conditions. Note that the measurement is performed on five samples, and the average value is taken as the value of the specific wear amount. The test conditions are as follows.
樹脂組成物を成形材料として、射出成形機（例えば、射出成形機ＳＥ１００ＥＶ－Ａ型、住友重機械工業社製）を使用して、シリンダー温度はノズル３６０℃、前部３６０℃、中部（１）３６０℃、中部（２）３５０℃、後部３４０℃、金型温度１５０℃、背圧５ＭＰａ、スクリュー回転数８０ｒｐｍ、射出速度３０ｍｍ/ｓ、射出圧力１５０ＭＰａ、射出時間０．８秒、保圧１００ＭＰａ、冷却時間２５秒の射出条件により中空円筒試験片（外径２５．６ｍｍ、内径２０ｍｍ、厚み２０ｍｍ）を取得する。鈴木式摩擦摩耗試験機（例えば、高千穂精機製、リングオンリング）を用い、２３℃に調節された室内にて以下の条件で比摩耗量（ｍｍ３／ｋＮ・ｍ）を測定する。なお、測定は５サンプルについて行い、その平均値を比摩耗量の値とする。試験条件は以下のとおりである。 [Abrasion test]
Using the resin composition as a molding material, an injection molding machine (for example, injection molding machine SE100EV-A type, manufactured by Sumitomo Heavy Industries, Ltd.) is used, and the cylinder temperature is 360°C at the nozzle, 360°C at the front, and 360°C at the middle (1). 360℃, middle (2) 350℃, rear 340℃, mold temperature 150℃, back pressure 5MPa, screw rotation speed 80rpm, injection speed 30mm/s, injection pressure 150MPa, injection time 0.8 seconds, holding pressure 100MPa, A hollow cylindrical test piece (outer diameter 25.6 mm, inner diameter 20 mm, thickness 20 mm) is obtained under injection conditions with a cooling time of 25 seconds. Specific wear amount (mm 3 /kN·m) is measured using a Suzuki friction and wear tester (for example, Takachiho Seiki, Ring-on-Ring) in a room adjusted to 23° C. under the following conditions. Note that the measurement is performed on five samples, and the average value is taken as the value of the specific wear amount. The test conditions are as follows.
相手材：外径２５．６ｍｍ、内径２０ｍｍ、厚み３０ｍｍの中空円筒の炭素鋼Ｓ４５Ｃ（Ｒａ：０．０２ｍｍ以下）
試験温度：２３℃
試験速度：３０ｍ／ｍｉｎ
荷重：１５０Ｎ
試験時間：５０ｍｉｎ Mating material: Hollow cylindrical carbon steel S45C with outer diameter 25.6 mm, inner diameter 20 mm, and thickness 30 mm (Ra: 0.02 mm or less)
Test temperature: 23℃
Test speed: 30m/min
Load: 150N
Test time: 50min
試験温度：２３℃
試験速度：３０ｍ／ｍｉｎ
荷重：１５０Ｎ
試験時間：５０ｍｉｎ Mating material: Hollow cylindrical carbon steel S45C with outer diameter 25.6 mm, inner diameter 20 mm, and thickness 30 mm (Ra: 0.02 mm or less)
Test temperature: 23℃
Test speed: 30m/min
Load: 150N
Test time: 50min
実施形態の樹脂組成物の上記の［摩耗試験］における前記試験片に対して測定された前記比摩耗量の値は、カーボンブラックの含有量によって大きく異なることから、樹脂組成物の全体量に対し、同一の割合でカーボンブラック（Ｂ）を含有する樹脂組成物同士を比較して評価するとよい。
比摩耗量を指標とする耐摩耗性の向上は、例えば、芳香族ポリスルホン（Ａ）を含有しない対照サンプルと、当該対照サンプルの樹脂（Ｃ）の一部に代えて、芳香族ポリスルホン（Ａ）を含有する測定サンプルとを用意し、対照サンプルの比摩耗量の測定値を１００とした場合の、測定サンプルの比摩耗量の換算値が１００未満であることで、耐摩耗性の向上を確認できる。 Since the value of the specific wear amount measured on the test piece in the above [wear test] of the resin composition of the embodiment varies greatly depending on the content of carbon black, It is preferable to compare and evaluate resin compositions containing carbon black (B) in the same proportion.
The improvement in wear resistance using the specific wear amount as an index is, for example, a control sample that does not contain aromatic polysulfone (A), and a control sample that does not contain aromatic polysulfone (A) in place of a part of the resin (C) in the control sample. When the measured value of the specific wear amount of the control sample is set as 100, the improvement in wear resistance is confirmed by the converted value of the specific wear amount of the measurement sample being less than 100. can.
比摩耗量を指標とする耐摩耗性の向上は、例えば、芳香族ポリスルホン（Ａ）を含有しない対照サンプルと、当該対照サンプルの樹脂（Ｃ）の一部に代えて、芳香族ポリスルホン（Ａ）を含有する測定サンプルとを用意し、対照サンプルの比摩耗量の測定値を１００とした場合の、測定サンプルの比摩耗量の換算値が１００未満であることで、耐摩耗性の向上を確認できる。 Since the value of the specific wear amount measured on the test piece in the above [wear test] of the resin composition of the embodiment varies greatly depending on the content of carbon black, It is preferable to compare and evaluate resin compositions containing carbon black (B) in the same proportion.
The improvement in wear resistance using the specific wear amount as an index is, for example, a control sample that does not contain aromatic polysulfone (A), and a control sample that does not contain aromatic polysulfone (A) in place of a part of the resin (C) in the control sample. When the measured value of the specific wear amount of the control sample is set as 100, the improvement in wear resistance is confirmed by the converted value of the specific wear amount of the measurement sample being less than 100. can.
対照サンプルの比摩耗量の測定値を１００とした場合の、実施形態の樹脂組成物を測定サンプルとした前記試験片に対して測定された前記比摩耗量の換算値は、１００未満であってよく、９８以下であってよく、９５以下であってよく、９０以下であってよい。
当該換算値の下限値は、特に制限されるものではないが、５０であってよく、６０であってよく、７０であってよい。すなわち、当該換算値は、５０以上であってよく、６０以上であってよく、７０以上であってよい。
当該換算値の数値範囲の一例としては、５０以上１００未満であってよく、５０以上９８以下であってよく、６０以上９５以下であってよく、７０以上９０以下であってよい。 When the measured value of the specific wear amount of the control sample is taken as 100, the converted value of the specific wear amount measured on the test piece using the resin composition of the embodiment as the measurement sample is less than 100. It may be 98 or less, it may be 95 or less, it may be 90 or less.
The lower limit of the conversion value is not particularly limited, but may be 50, 60, or 70. That is, the converted value may be 50 or more, 60 or more, or 70 or more.
As an example of the numerical range of the converted value, it may be 50 or more and less than 100, 50 or more and 98 or less, 60 or more and 95 or less, and 70 or more and 90 or less.
当該換算値の下限値は、特に制限されるものではないが、５０であってよく、６０であってよく、７０であってよい。すなわち、当該換算値は、５０以上であってよく、６０以上であってよく、７０以上であってよい。
当該換算値の数値範囲の一例としては、５０以上１００未満であってよく、５０以上９８以下であってよく、６０以上９５以下であってよく、７０以上９０以下であってよい。 When the measured value of the specific wear amount of the control sample is taken as 100, the converted value of the specific wear amount measured on the test piece using the resin composition of the embodiment as the measurement sample is less than 100. It may be 98 or less, it may be 95 or less, it may be 90 or less.
The lower limit of the conversion value is not particularly limited, but may be 50, 60, or 70. That is, the converted value may be 50 or more, 60 or more, or 70 or more.
As an example of the numerical range of the converted value, it may be 50 or more and less than 100, 50 or more and 98 or less, 60 or more and 95 or less, and 70 or more and 90 or less.
以上に説明したとおり、実施形態の樹脂組成物は、前記カーボンブラック（Ｂ）の領域間の重心間距離の変動係数が０．５２以下であることにより、上記［引張試験］にて評価される耐久性、及び上記［摩耗試験］にて評価される耐摩耗性に優れるものである。
As explained above, the resin composition of the embodiment is evaluated in the above [Tensile Test] by having a coefficient of variation of the distance between the centers of gravity between the regions of the carbon black (B) of 0.52 or less. It has excellent durability and abrasion resistance as evaluated by the above-mentioned [abrasion test].
カーボンブラック（Ｂ）の変動係数が上記上限値以下である実施形態の樹脂組成物は、含有されるカーボンブラック（Ｂ）の分散状態が良好であり、引張による応力の集中が生じ難いため、引張破壊エネルギーの値が向上するものと考えられる。
The resin composition of the embodiment in which the coefficient of variation of carbon black (B) is less than or equal to the above upper limit value has a good dispersion state of carbon black (B) contained therein, and stress concentration due to tension is difficult to occur. It is thought that the value of fracture energy is improved.
従来、上記の変動係数を指標として、上記の耐久性及び耐摩耗性を向上可能であることについては知られておらず、実施形態の樹脂組成物は、カーボンブラック（Ｂ）を含有する樹脂組成物の耐久性及び耐摩耗性が向上された非常に有用なものである。
Conventionally, it has not been known that the above-mentioned durability and abrasion resistance can be improved using the above-mentioned coefficient of variation as an index, and the resin composition of the embodiment is a resin composition containing carbon black (B). This is a very useful product with improved durability and abrasion resistance.
後述の実施例に示されるように、芳香族ポリスルホン（Ａ）を含有することによる耐久性及び耐摩耗性の向上は、樹脂組成物がカーボンブラック（Ｂ）を含有しない場合では確認されない。
したがって、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）との特定の組み合わせを採用することで、該樹脂組成物の耐久性及び耐摩耗性が向上されるのである。 As shown in the Examples below, the durability and abrasion resistance are not improved by containing aromatic polysulfone (A) when the resin composition does not contain carbon black (B).
Therefore, by employing a specific combination of aromatic polysulfone (A) and carbon black (B), the durability and abrasion resistance of the resin composition are improved.
したがって、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）との特定の組み合わせを採用することで、該樹脂組成物の耐久性及び耐摩耗性が向上されるのである。 As shown in the Examples below, the durability and abrasion resistance are not improved by containing aromatic polysulfone (A) when the resin composition does not contain carbon black (B).
Therefore, by employing a specific combination of aromatic polysulfone (A) and carbon black (B), the durability and abrasion resistance of the resin composition are improved.
芳香族ポリスルホン（Ａ）を含有させることで、カーボンブラック（Ｂ）の変動係数の値を低下させることができる理由の詳細については明らかではないが、押出機や成形機による加工などにより、カーボンブラック表面の官能基と芳香族ポリアミド（Ａ）の水酸基とが反応又は相互作用することで、混練とともにカーボンブラックの分散が進行するものと考えられる。
The details of why the coefficient of variation of carbon black (B) can be lowered by containing aromatic polysulfone (A) are not clear, but carbon black can be reduced by processing with an extruder or molding machine, etc. It is thought that the dispersion of carbon black progresses with kneading due to the reaction or interaction between the functional groups on the surface and the hydroxyl groups of the aromatic polyamide (A).
［第２実施形態］
本実施形態の樹脂組成物は、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、を含み、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、樹脂組成物である。 [Second embodiment]
The resin composition of the present embodiment includes aromatic polysulfone (A) and carbon black (B), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the aromatic polysulfone (A) The content of the hydroxyl groups in the resin composition is 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A).
本実施形態の樹脂組成物は、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、を含み、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、樹脂組成物である。 [Second embodiment]
The resin composition of the present embodiment includes aromatic polysulfone (A) and carbon black (B), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the aromatic polysulfone (A) The content of the hydroxyl groups in the resin composition is 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A).
本実施形態の樹脂組成物における、芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、及び所望により含有されてよい樹脂（Ｃ）や、その他の任意成分については、前記第１実施形態で例示したものが挙げられ、共通する事柄についての詳細な説明を省略する。
In the resin composition of this embodiment, the aromatic polysulfone (A), carbon black (B), resin (C) that may be contained as desired, and other optional components are as exemplified in the first embodiment. A detailed explanation of common matters will be omitted.
本実施形態の樹脂組成物の一例として、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、前記芳香族ポリスルホン（Ａ）以外の芳香族ポリスルホン（ｃ）と、を含み、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上４０×１０－５モル以下であり、前記芳香族ポリスルホン（ｃ）の前記水酸基の含有量は、前記芳香族ポリスルホン（ｃ）１ｇあたり１×１０－５モル未満である、樹脂組成物を例示できる。
An example of the resin composition of the present embodiment includes aromatic polysulfone (A), carbon black (B), and aromatic polysulfone (c) other than the aromatic polysulfone (A), and the aromatic polysulfone (A) has a hydroxyl group in its molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A). An example of a resin composition is such that the content of the hydroxyl groups in the aromatic polysulfone (c) is less than 1×10 −5 mol per 1 g of the aromatic polysulfone (c).
本実施形態の樹脂組成物において、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上４０×１０－５モル以下であり、６×１０－５モル以上３０×１０－５モル以下であってよく、８×１０－５モル以上２０×１０－５モル以下であってよい。
In the resin composition of the present embodiment, the content of the hydroxyl groups of the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A), The amount may be 6×10 −5 mol or more and 30×10 −5 mol or less, and may be 8×10 −5 mol or more and 20×10 −5 mol or less.
分子内に上記の所定量の水酸基を有する芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、を含む実施形態の樹脂組成物は、該芳香族ポリスルホン（Ａ）を含まない場合の樹脂組成物と比べ、引張破壊エネルギーを指標とする耐久性が向上される。
The resin composition of the embodiment containing the aromatic polysulfone (A) having the above-mentioned predetermined amount of hydroxyl groups in the molecule and carbon black (B) is the resin composition when the aromatic polysulfone (A) is not included. Compared to other materials, durability as measured by tensile fracture energy is improved.
同様に、分子内に上記の所定量の水酸基を有する芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、を含む実施形態の樹脂組成物は、該芳香族ポリスルホン（Ａ）を含まない場合の樹脂組成物と比べ、比摩耗量を指標とする耐摩耗性が向上される。
Similarly, the resin composition of the embodiment containing the aromatic polysulfone (A) having the above-mentioned predetermined amount of hydroxyl groups in the molecule and carbon black (B) does not contain the aromatic polysulfone (A). Compared to the resin composition, the wear resistance as measured by specific wear amount is improved.
従来、所定量の水酸基を有する芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）との特定の組み合わせを採用することで、上記の耐久性及び耐摩耗性を向上可能であることについては知られておらず、実施形態の樹脂組成物は、カーボンブラック（Ｂ）を含有する樹脂組成物の耐久性及び耐摩耗性が向上された非常に有用なものである。
Conventionally, it has not been known that the above-mentioned durability and abrasion resistance can be improved by employing a specific combination of aromatic polysulfone (A) having a predetermined amount of hydroxyl groups and carbon black (B). However, the resin composition of the embodiment is very useful because the durability and abrasion resistance of the resin composition containing carbon black (B) are improved.
前記第１実施形態との関連について、第２実施形態の樹脂組成物は、所定量の水酸基を有する芳香族ポリスルホン（Ａ）を含有させることで、カーボンブラック（Ｂ）の変動係数の値を容易に低下させることができるという側面を有する。
Regarding the relationship with the first embodiment, the resin composition of the second embodiment can easily change the value of the coefficient of variation of carbon black (B) by containing a predetermined amount of aromatic polysulfone (A) having hydroxyl groups. It has the aspect that it can be lowered to
（樹脂組成物の製造方法）
上記の各実施形態の樹脂組成物は、芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、及び必要に応じて樹脂（Ｃ）や、その他の任意成分を、一括で又は適当な順序で混合して得ることができる。 (Method for manufacturing resin composition)
The resin composition of each of the above embodiments is prepared by mixing aromatic polysulfone (A), carbon black (B), and if necessary, resin (C) and other optional components all at once or in an appropriate order. You can get it.
上記の各実施形態の樹脂組成物は、芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、及び必要に応じて樹脂（Ｃ）や、その他の任意成分を、一括で又は適当な順序で混合して得ることができる。 (Method for manufacturing resin composition)
The resin composition of each of the above embodiments is prepared by mixing aromatic polysulfone (A), carbon black (B), and if necessary, resin (C) and other optional components all at once or in an appropriate order. You can get it.
実施形態の樹脂組成物の製造方法によれば、実施形態の樹脂組成物を製造可能である。
According to the method for producing the resin composition of the embodiment, the resin composition of the embodiment can be produced.
芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、樹脂（Ｃ）、及び任意成分の種類やその配合割合については、上記≪樹脂組成物≫で説明した種類や含有量を例示できる。
Regarding the types and blending ratios of the aromatic polysulfone (A), carbon black (B), resin (C), and optional components, the types and contents explained in the above <<Resin composition>> can be exemplified.
前記混合としては、溶融混練が好ましい。実施形態の樹脂組成物の製造は、当該樹脂組成物から成形体を得るための成形がより容易になる点で、芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、及び必要に応じて樹脂（Ｃ）や、その他の任意成分を、溶融混練することにより行うことが好ましく、溶融混練してペレット化した形態として実施形態の樹脂組成物を提供できる。具体的には、芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、及び必要に応じて樹脂（Ｃ）や、その他の任意成分を、ヘンシェルミキサーやタンブラー等を用いて混合し、その混合物を、押出機を用いて溶融混練してもよいし、芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、及び必要に応じて樹脂（Ｃ）や、その他の任意成分を、押出機に別々に投入し、溶融混練してもよい。後者の場合、押出機に投入する順序は任意であるが、通常は熱可塑性成分をあらかじめ十分に加熱溶融させてから、熱可塑性成分以外の成分を投入する方法がとられる。また、前記方法の組合せ、すなわち、あらかじめ一部の成分を混合分散化しておき、それを、押出機で加熱溶融させた残りの熱可塑性樹脂に投入して混練してもよい。また、溶融混練は必ずしも押出機で行う必要はなく、バンバリーミキサーやロールを用いることもできる。なお、押出機としては、２軸の混練押出機を用いることが好ましい。
The above mixing is preferably melt kneading. In the production of the resin composition of the embodiment, aromatic polysulfone (A), carbon black (B), and optionally a resin ( It is preferable to melt and knead C) and other optional components, and the resin composition of the embodiment can be provided in the form of a pelletized form of melt-kneading. Specifically, aromatic polysulfone (A), carbon black (B), and if necessary, resin (C) and other optional components are mixed using a Henschel mixer, tumbler, etc., and the mixture is It may be melt-kneaded using an extruder, or the aromatic polysulfone (A), carbon black (B), and if necessary, resin (C) and other optional components may be separately charged into the extruder. , may be melt-kneaded. In the latter case, the order in which the components are charged into the extruder is arbitrary, but usually the thermoplastic component is sufficiently heated and melted in advance, and then the components other than the thermoplastic component are introduced. Alternatively, a combination of the above methods may be used, that is, a part of the components may be mixed and dispersed in advance, and then added to the remaining thermoplastic resin that has been heated and melted in an extruder and kneaded. Further, the melt kneading does not necessarily need to be performed using an extruder, and a Banbury mixer or a roll can also be used. As the extruder, it is preferable to use a twin-screw kneading extruder.
このようにして得られる樹脂組成物、特に樹脂組成物のペレットは、後述の成形体の製造に用いられる樹脂組成物として好適に使用可能である。
芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、樹脂（Ｃ）、及び任意成分は、それぞれ、それ自体公知のものを適用することができ、市販品を入手するか、それ自体公知の方法によって、製造することができる。 The resin composition obtained in this way, particularly the pellets of the resin composition, can be suitably used as a resin composition used for producing a molded article as described below.
As the aromatic polysulfone (A), carbon black (B), resin (C), and optional components, those known per se can be used, and commercially available products can be obtained or they can be obtained by methods known per se. , can be manufactured.
芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、樹脂（Ｃ）、及び任意成分は、それぞれ、それ自体公知のものを適用することができ、市販品を入手するか、それ自体公知の方法によって、製造することができる。 The resin composition obtained in this way, particularly the pellets of the resin composition, can be suitably used as a resin composition used for producing a molded article as described below.
As the aromatic polysulfone (A), carbon black (B), resin (C), and optional components, those known per se can be used, and commercially available products can be obtained or they can be obtained by methods known per se. , can be manufactured.
＜樹脂組成物の成形方法＞
実施形態の樹脂組成物は、従来公知の溶融成形、好ましくは、射出成形、押出成形、圧縮成形、ブロー成形、真空成形、プレス成形に適用可能である。また、Ｔダイを用いたフィルム成形、インフレーション成形等のフィルム製膜、溶融紡糸にも適用可能である。 <Method for molding resin composition>
The resin composition of the embodiment can be applied to conventionally known melt molding, preferably injection molding, extrusion molding, compression molding, blow molding, vacuum molding, and press molding. It is also applicable to film forming using a T-die, film forming such as inflation forming, and melt spinning.
実施形態の樹脂組成物は、従来公知の溶融成形、好ましくは、射出成形、押出成形、圧縮成形、ブロー成形、真空成形、プレス成形に適用可能である。また、Ｔダイを用いたフィルム成形、インフレーション成形等のフィルム製膜、溶融紡糸にも適用可能である。 <Method for molding resin composition>
The resin composition of the embodiment can be applied to conventionally known melt molding, preferably injection molding, extrusion molding, compression molding, blow molding, vacuum molding, and press molding. It is also applicable to film forming using a T-die, film forming such as inflation forming, and melt spinning.
≪成形体≫
実施形態の成形体は、上述した実施形態の樹脂組成物を含む成形体である。
実施形態の成形体として、実施形態の樹脂組成物のみからなる成形体を例示できる。
実施形態の成形体として、上述した実施形態の樹脂組成物を用いて作製された成形体、すなわち、上述した実施形態の樹脂組成物を成形した成形体を例示できる。 ≪Molded object≫
The molded article of the embodiment is a molded article containing the resin composition of the embodiment described above.
As the molded article of the embodiment, a molded article made only of the resin composition of the embodiment can be exemplified.
An example of the molded object of the embodiment is a molded object produced using the resin composition of the embodiment described above, that is, a molded object formed by molding the resin composition of the embodiment described above.
実施形態の成形体は、上述した実施形態の樹脂組成物を含む成形体である。
実施形態の成形体として、実施形態の樹脂組成物のみからなる成形体を例示できる。
実施形態の成形体として、上述した実施形態の樹脂組成物を用いて作製された成形体、すなわち、上述した実施形態の樹脂組成物を成形した成形体を例示できる。 ≪Molded object≫
The molded article of the embodiment is a molded article containing the resin composition of the embodiment described above.
As the molded article of the embodiment, a molded article made only of the resin composition of the embodiment can be exemplified.
An example of the molded object of the embodiment is a molded object produced using the resin composition of the embodiment described above, that is, a molded object formed by molding the resin composition of the embodiment described above.
実施形態の成形体として、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、を含み、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記カーボンブラック（Ｂ）の領域間の重心間距離の、標準偏差／平均値で表される変動係数が０．５２以下である、成形体を例示できる。
The molded article of the embodiment includes aromatic polysulfone (A) and carbon black (B), and the aromatic polysulfone (A) has a hydroxyl group in its molecule, and the area between the regions of the carbon black (B) is An example of a molded article is a molded article having a coefficient of variation expressed by standard deviation/average value of the distance between centers of gravity of 0.52 or less.
実施形態の成形体の一例として、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、前記芳香族ポリスルホン（Ａ）以外の芳香族ポリスルホン（ｃ）と、を含み、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上４０×１０－５モル以下であり、前記芳香族ポリスルホン（ｃ）の前記水酸基の含有量は、前記芳香族ポリスルホン（ｃ）１ｇあたり１×１０－５モル未満であり、前記カーボンブラック（Ｂ）の領域間の重心間距離の、標準偏差／平均値で表される変動係数が０．５２以下である、成形体を例示できる。
An example of a molded article of the embodiment includes aromatic polysulfone (A), carbon black (B), and aromatic polysulfone (c) other than the aromatic polysulfone (A), and includes the aromatic polysulfone (A). ) has a hydroxyl group in the molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A). , the content of the hydroxyl groups in the aromatic polysulfone (c) is less than 1×10 −5 mol per 1 g of the aromatic polysulfone (c), and the distance between the centers of gravity between the regions of the carbon black (B) is A molded article having a coefficient of variation expressed as standard deviation/average value of 0.52 or less can be exemplified.
別の実施形態の成形体として、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、を含み、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、成形体を例示できる。
A molded article of another embodiment includes aromatic polysulfone (A) and carbon black (B), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the aromatic polysulfone (A) An example of the molded article is a molded article in which the content of the hydroxyl group is 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A).
実施形態の成形体の一例として、芳香族ポリスルホン（Ａ）と、カーボンブラック（Ｂ）と、前記芳香族ポリスルホン（Ａ）以外の芳香族ポリスルホン（ｃ）と、を含み、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上４０×１０－５モル以下であり、前記芳香族ポリスルホン（ｃ）の前記水酸基の含有量は、前記芳香族ポリスルホン（ｃ）１ｇあたり１×１０－５モル未満である、成形体を例示できる。
An example of a molded article of the embodiment includes aromatic polysulfone (A), carbon black (B), and aromatic polysulfone (c) other than the aromatic polysulfone (A), and includes the aromatic polysulfone (A). ) has a hydroxyl group in the molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A). The content of the hydroxyl groups in the aromatic polysulfone (c) is less than 1×10 −5 mol per 1 g of the aromatic polysulfone (c).
実施形態の成形体は、上述した実施形態の樹脂組成物を含むものであるので、引張破壊エネルギーの値が向上しており、耐久性に優れる。
Since the molded article of the embodiment includes the resin composition of the embodiment described above, the value of tensile fracture energy is improved and the molded article is excellent in durability.
実施形態の成形体は、上述した実施形態の樹脂組成物を含むものであるので、比摩耗量の値が低減されており、耐摩耗性に優れる。
Since the molded article of the embodiment includes the resin composition of the embodiment described above, the specific wear amount value is reduced and the molded article has excellent wear resistance.
＜樹脂組成物の用途＞
実施形態の樹脂組成物は、上記のように、実施形態の成形体を提供することができ、実施形態の成形体は、引張破壊エネルギーの値が向上していることから、耐久性が必要とされる部材の材料として好適である。更には、実施形態の成形体は耐摩耗性にも優れたものとできることから、耐摩耗性が必要とされる部材の材料として好適である。このような部品としては、すべり軸受、スラストブッシュといった各種軸受、ベアリングリテーナー、歯車、チェインの材料、又は後述する電子部品・光学部品が挙げられる。これらの特性を活かし、電気・電子部品、光学部品などの構造部材、機械部品や機構部品に好適である。当該電気・電子部品、光学部品としては、例えば、コネクター、ソケット、リレー部品、コイルボビン、光ピックアップ、発振子、プリント配線板、 回路基板、半導体パッケージ、コンピュータ関連部品、カメラ鏡筒、光学センサー筐体、コンパクトカメラモジュール筐体（パッケージや鏡筒）、プロジェクター光学エンジン構成部材、ＩＣトレー、ウエハーキャリヤー、等の半導体製造プロセス関連部品；ＶＴＲ、テレビ、アイロン、エアコン、ステレオ、掃除機、冷蔵庫、炊飯器、電気ポット、照明器具、等の家庭電気製品部品；ランプリフレクター、ランプホルダー等照明器具部品；コンパクトディスク、レーザーディスク（登録商標）、スピーカー、等の音響製品部品；光ケーブル用フェルール、電話機部品、ファクシミリ部品、モデム等の通信機器部品；分離爪、ヒータホルダー、等の複写機、印刷機関連部品；インペラー、ファン歯車、ギヤ、モーター部品及びケース、等の機械部品；自動車用機構部品、エンジン部品、エンジンルーム内部品、電装部品、内装部品等の自動車部品、マイクロ波調理用鍋、耐熱食器、等の調理用器具；床材、壁材などの断熱、防音用材料、梁、柱などの支持材料、屋根材等の建築資材、又は土木建築用材料；航空機、宇宙機、宇宙機器用部品；原子炉等の放射線施設部材、海洋施設部材、洗浄用治具、光学機器部品、バルブ類、パイプ類、ノズル類、フィルター類、膜、医療用機器部品及び医療用材料、センサー類部品、サニタリー備品、スポーツ用品、レジャー用品が挙げられる。 <Applications of resin composition>
As described above, the resin composition of the embodiment can provide the molded article of the embodiment, and since the molded article of the embodiment has an improved value of tensile fracture energy, durability is required. It is suitable as a material for a member to be used. Furthermore, since the molded article of the embodiment can be made to have excellent wear resistance, it is suitable as a material for a member that requires wear resistance. Examples of such parts include various bearings such as sliding bearings and thrust bushes, bearing retainers, gears, chain materials, and electronic and optical parts described below. Taking advantage of these properties, it is suitable for structural members such as electrical/electronic parts and optical parts, mechanical parts, and mechanism parts. Examples of such electrical/electronic parts and optical parts include connectors, sockets, relay parts, coil bobbins, optical pickups, oscillators, printed wiring boards, circuit boards, semiconductor packages, computer-related parts, camera barrels, and optical sensor housings. , compact camera module housings (packages and lens barrels), projector optical engine components, IC trays, wafer carriers, and other semiconductor manufacturing process related parts; VTRs, televisions, irons, air conditioners, stereos, vacuum cleaners, refrigerators, rice cookers. , electric kettles, lighting equipment, and other home appliance parts; lamp reflectors, lamp holders, and other lighting equipment parts; compact discs, laser discs (registered trademarks), speakers, and other audio product parts; optical cable ferrules, telephone parts, and facsimiles. Parts, communication equipment parts such as modems; Copying machine and printing machine related parts such as separation claws, heater holders, etc.; Mechanical parts such as impellers, fan gears, gears, motor parts and cases; Mechanical parts for automobiles, engine parts, Automotive parts such as engine compartment parts, electrical parts, interior parts, cooking utensils such as microwave cooking pots, heat-resistant tableware, etc.; insulation materials such as flooring and wall materials; soundproofing materials; supporting materials such as beams and columns. , construction materials such as roofing materials, or materials for civil engineering and construction; parts for aircraft, spacecraft, and space equipment; parts for radiation facilities such as nuclear reactors, parts for marine facilities, cleaning jigs, optical equipment parts, valves, pipes, etc. , nozzles, filters, membranes, medical equipment parts and materials, sensor parts, sanitary supplies, sports goods, and leisure goods.
実施形態の樹脂組成物は、上記のように、実施形態の成形体を提供することができ、実施形態の成形体は、引張破壊エネルギーの値が向上していることから、耐久性が必要とされる部材の材料として好適である。更には、実施形態の成形体は耐摩耗性にも優れたものとできることから、耐摩耗性が必要とされる部材の材料として好適である。このような部品としては、すべり軸受、スラストブッシュといった各種軸受、ベアリングリテーナー、歯車、チェインの材料、又は後述する電子部品・光学部品が挙げられる。これらの特性を活かし、電気・電子部品、光学部品などの構造部材、機械部品や機構部品に好適である。当該電気・電子部品、光学部品としては、例えば、コネクター、ソケット、リレー部品、コイルボビン、光ピックアップ、発振子、プリント配線板、 回路基板、半導体パッケージ、コンピュータ関連部品、カメラ鏡筒、光学センサー筐体、コンパクトカメラモジュール筐体（パッケージや鏡筒）、プロジェクター光学エンジン構成部材、ＩＣトレー、ウエハーキャリヤー、等の半導体製造プロセス関連部品；ＶＴＲ、テレビ、アイロン、エアコン、ステレオ、掃除機、冷蔵庫、炊飯器、電気ポット、照明器具、等の家庭電気製品部品；ランプリフレクター、ランプホルダー等照明器具部品；コンパクトディスク、レーザーディスク（登録商標）、スピーカー、等の音響製品部品；光ケーブル用フェルール、電話機部品、ファクシミリ部品、モデム等の通信機器部品；分離爪、ヒータホルダー、等の複写機、印刷機関連部品；インペラー、ファン歯車、ギヤ、モーター部品及びケース、等の機械部品；自動車用機構部品、エンジン部品、エンジンルーム内部品、電装部品、内装部品等の自動車部品、マイクロ波調理用鍋、耐熱食器、等の調理用器具；床材、壁材などの断熱、防音用材料、梁、柱などの支持材料、屋根材等の建築資材、又は土木建築用材料；航空機、宇宙機、宇宙機器用部品；原子炉等の放射線施設部材、海洋施設部材、洗浄用治具、光学機器部品、バルブ類、パイプ類、ノズル類、フィルター類、膜、医療用機器部品及び医療用材料、センサー類部品、サニタリー備品、スポーツ用品、レジャー用品が挙げられる。 <Applications of resin composition>
As described above, the resin composition of the embodiment can provide the molded article of the embodiment, and since the molded article of the embodiment has an improved value of tensile fracture energy, durability is required. It is suitable as a material for a member to be used. Furthermore, since the molded article of the embodiment can be made to have excellent wear resistance, it is suitable as a material for a member that requires wear resistance. Examples of such parts include various bearings such as sliding bearings and thrust bushes, bearing retainers, gears, chain materials, and electronic and optical parts described below. Taking advantage of these properties, it is suitable for structural members such as electrical/electronic parts and optical parts, mechanical parts, and mechanism parts. Examples of such electrical/electronic parts and optical parts include connectors, sockets, relay parts, coil bobbins, optical pickups, oscillators, printed wiring boards, circuit boards, semiconductor packages, computer-related parts, camera barrels, and optical sensor housings. , compact camera module housings (packages and lens barrels), projector optical engine components, IC trays, wafer carriers, and other semiconductor manufacturing process related parts; VTRs, televisions, irons, air conditioners, stereos, vacuum cleaners, refrigerators, rice cookers. , electric kettles, lighting equipment, and other home appliance parts; lamp reflectors, lamp holders, and other lighting equipment parts; compact discs, laser discs (registered trademarks), speakers, and other audio product parts; optical cable ferrules, telephone parts, and facsimiles. Parts, communication equipment parts such as modems; Copying machine and printing machine related parts such as separation claws, heater holders, etc.; Mechanical parts such as impellers, fan gears, gears, motor parts and cases; Mechanical parts for automobiles, engine parts, Automotive parts such as engine compartment parts, electrical parts, interior parts, cooking utensils such as microwave cooking pots, heat-resistant tableware, etc.; insulation materials such as flooring and wall materials; soundproofing materials; supporting materials such as beams and columns. , construction materials such as roofing materials, or materials for civil engineering and construction; parts for aircraft, spacecraft, and space equipment; parts for radiation facilities such as nuclear reactors, parts for marine facilities, cleaning jigs, optical equipment parts, valves, pipes, etc. , nozzles, filters, membranes, medical equipment parts and materials, sensor parts, sanitary supplies, sports goods, and leisure goods.
≪カーボンブラック分散剤≫
実施形態のカーボンブラック分散剤は、芳香族ポリスルホン（Ａ）を含有し、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である。 ≪Carbon black dispersant≫
The carbon black dispersant of the embodiment contains aromatic polysulfone (A), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is as follows: The amount is 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A).
実施形態のカーボンブラック分散剤は、芳香族ポリスルホン（Ａ）を含有し、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である。 ≪Carbon black dispersant≫
The carbon black dispersant of the embodiment contains aromatic polysulfone (A), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is as follows: The amount is 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A).
前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上４０×１０－５モル以下であり、６×１０－５モル以上３０×１０－５モル以下であってよく、８×１０－５モル以上２０×１０－５モル以下であってよい。
The content of the hydroxyl groups in the aromatic polysulfone (A) is 1×10 −5 mol or more and 40×10 −5 mol or less, and 6× 10 −5 mol or more and 30× The amount may be 10 −5 mol or less, and may be 8×10 −5 mol or more and 20×10 −5 mol or less.
実施形態のカーボンブラック分散剤によれば、カーボンブラック（Ｂ）を含有する樹脂組成物に添加して使用することで、カーボンブラック（Ｂ）の分散性を向上させるカーボンブラックの分散用の分散剤として使用することができる。
According to the carbon black dispersant of the embodiment, the dispersant for dispersing carbon black improves the dispersibility of carbon black (B) by being added to a resin composition containing carbon black (B). It can be used as
一実施形態として、カーボンブラック分散剤としての前記芳香族ポリスルホン（Ａ）の使用を提供する。
一実施形態として、カーボンブラックの分散性の向上のための前記芳香族ポリスルホン（Ａ）の使用を提供する。 One embodiment provides the use of the aromatic polysulfone (A) as a carbon black dispersant.
One embodiment provides the use of the aromatic polysulfone (A) for improving the dispersibility of carbon black.
一実施形態として、カーボンブラックの分散性の向上のための前記芳香族ポリスルホン（Ａ）の使用を提供する。 One embodiment provides the use of the aromatic polysulfone (A) as a carbon black dispersant.
One embodiment provides the use of the aromatic polysulfone (A) for improving the dispersibility of carbon black.
一実施形態として、樹脂（Ｃ）及びカーボンブラック（Ｂ）を含有する樹脂組成物に添加して使用する、前記芳香族ポリスルホン（Ａ）を提供する。
In one embodiment, the aromatic polysulfone (A) is used by being added to a resin composition containing a resin (C) and carbon black (B).
一実施形態として、樹脂（Ｃ）及びカーボンブラック（Ｂ）を含有する樹脂組成物に、前記芳香族ポリスルホン（Ａ）を添加することを含む、カーボンブラックの分散性の向上方法を提供する。
In one embodiment, a method for improving the dispersibility of carbon black is provided, which includes adding the aromatic polysulfone (A) to a resin composition containing resin (C) and carbon black (B).
一実施形態として、カーボンブラック（Ｂ）に、前記芳香族ポリスルホン（Ａ）を添加することを含む、カーボンブラックの分散性の向上方法を提供する。
In one embodiment, a method for improving the dispersibility of carbon black is provided, which includes adding the aromatic polysulfone (A) to carbon black (B).
上記カーボンブラックの分散性の向上方法は、カーボンブラック（Ｂ）の領域間の重心間距離の変動係数が０．５２以下、好ましくは０．５０以下、より好ましくは０．４９以下、より好ましくは０．４８以下、さらに好ましくは０．４５以下となるように、添加した前記芳香族ポリスルホン（Ａ）と樹脂（Ｃ）及びカーボンブラック（Ｂ）を含有する樹脂組成物とを、又は添加した前記芳香族ポリスルホン（Ａ）とカーボンブラック（Ｂ）とを、溶融混錬することを含み得る。
The above method for improving the dispersibility of carbon black is such that the coefficient of variation of the center-to-center distance between regions of carbon black (B) is 0.52 or less, preferably 0.50 or less, more preferably 0.49 or less, more preferably 0.48 or less, more preferably 0.45 or less, the added aromatic polysulfone (A) and the resin composition containing the resin (C) and carbon black (B), or the added The method may include melt-kneading aromatic polysulfone (A) and carbon black (B).
一実施形態として、カーボンブラック（Ｂ）の分散性を向上させるカーボンブラックの分散用の分散剤を製造するための、前記芳香族ポリスルホン（Ａ）の使用を提供する。
One embodiment provides the use of the aromatic polysulfone (A) to produce a dispersant for dispersing carbon black that improves the dispersibility of carbon black (B).
カーボンブラックの分散性の向上については、上記≪樹脂組成物≫で説明したカーボンブラック（Ｂ）の領域間の重心間距離の変動係数を指標とすることができる。
Regarding the improvement of the dispersibility of carbon black, the coefficient of variation of the distance between the centers of gravity of the regions of carbon black (B) explained in the above <<Resin composition>> can be used as an index.
なお、カーボンブラック分散剤としての芳香族ポリスルホン（Ａ）、カーボンブラック（Ｂ）、及び樹脂（Ｃ）の種類や、それらの好ましい組み合わせ、カーボンブラック分散剤添加後のそれらの含有量としては、上記≪樹脂組成物≫で説明したものを例示できる。
The types of aromatic polysulfone (A), carbon black (B), and resin (C) used as carbon black dispersants, their preferred combinations, and their contents after addition of carbon black dispersants are as described above. Examples include those explained in <<Resin composition>>.
次に実施例を示して本発明をさらに詳細に説明するが、本発明は以下の実施例に限定されるものではない。
Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to the following Examples.
≪原料≫
・樹脂
本実施例において、水酸基含有量が、芳香族ポリスルホン１ｇあたり１×１０－５モル以上４０×１０－５モル以下である芳香族ポリスルホンを芳香族ポリスルホン（Ａ）とする。 また、水酸基含有量が、芳香族ポリスルホン１ｇあたり１×１０－５モル未満である芳香族ポリスルホンを、樹脂（Ｃ）（芳香族ポリスルホン（ｃ））とする。 ≪Raw materials≫
-Resin In this example, aromatic polysulfone having a hydroxyl group content of 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of aromatic polysulfone is referred to as aromatic polysulfone (A). Further, aromatic polysulfone having a hydroxyl group content of less than 1×10 −5 mol per gram of aromatic polysulfone is referred to as resin (C) (aromatic polysulfone (c)).
・樹脂
本実施例において、水酸基含有量が、芳香族ポリスルホン１ｇあたり１×１０－５モル以上４０×１０－５モル以下である芳香族ポリスルホンを芳香族ポリスルホン（Ａ）とする。 また、水酸基含有量が、芳香族ポリスルホン１ｇあたり１×１０－５モル未満である芳香族ポリスルホンを、樹脂（Ｃ）（芳香族ポリスルホン（ｃ））とする。 ≪Raw materials≫
-Resin In this example, aromatic polysulfone having a hydroxyl group content of 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of aromatic polysulfone is referred to as aromatic polysulfone (A). Further, aromatic polysulfone having a hydroxyl group content of less than 1×10 −5 mol per gram of aromatic polysulfone is referred to as resin (C) (aromatic polysulfone (c)).
樹脂（Ｃ）：
ポリエーテルスルホン（商品名「スミカエクセル（登録商標）ＰＥＳ ４１００Ｐ」、住友化学株式会社製、繰返し単位として、前記Ｐｈ１及び前記Ｐｈ２が置換基を有さないｐ－フェニレン基である前記繰返し単位（１）のみを有するポリマー、１ｇあたりの水酸基の含有量：１．８×１０－６モル／ｇ、還元粘度：０．４１ｄＬ／ｇ） Resin (C):
Polyether sulfone (trade name "Sumika Excel (registered trademark) PES 4100P", manufactured by Sumitomo Chemical Co., Ltd., as a repeating unit, the above-mentioned Ph 1 and the above-mentioned Ph 2 are p-phenylene groups without substituents) Polymer having only (1), hydroxyl group content per 1 g: 1.8 x 10 -6 mol/g, reduced viscosity: 0.41 dL/g)
ポリエーテルスルホン（商品名「スミカエクセル（登録商標）ＰＥＳ ４１００Ｐ」、住友化学株式会社製、繰返し単位として、前記Ｐｈ１及び前記Ｐｈ２が置換基を有さないｐ－フェニレン基である前記繰返し単位（１）のみを有するポリマー、１ｇあたりの水酸基の含有量：１．８×１０－６モル／ｇ、還元粘度：０．４１ｄＬ／ｇ） Resin (C):
Polyether sulfone (trade name "Sumika Excel (registered trademark) PES 4100P", manufactured by Sumitomo Chemical Co., Ltd., as a repeating unit, the above-mentioned Ph 1 and the above-mentioned Ph 2 are p-phenylene groups without substituents) Polymer having only (1), hydroxyl group content per 1 g: 1.8 x 10 -6 mol/g, reduced viscosity: 0.41 dL/g)
芳香族ポリスルホン（Ａ）：
ポリエーテルスルホン（商品名「スミカエクセル（登録商標）ＰＥＳ ５００３Ｐ」、住友化学株式会社製、繰返し単位として、前記Ｐｈ１及び前記Ｐｈ２が置換基を有さないｐ－フェニレン基である前記繰返し単位（１）のみを有するポリマー、１ｇあたりの水酸基の含有量：８．６×１０－５モル／ｇ、還元粘度：０．５１ｄＬ／ｇ） Aromatic polysulfone (A):
Polyether sulfone (trade name "Sumika Excel (registered trademark) PES 5003P", manufactured by Sumitomo Chemical Co., Ltd., as a repeating unit, the above-mentioned Ph 1 and the above-mentioned Ph 2 are p-phenylene groups having no substituents) Polymer having only (1), hydroxyl group content per 1 g: 8.6 x 10 -5 mol/g, reduced viscosity: 0.51 dL/g)
ポリエーテルスルホン（商品名「スミカエクセル（登録商標）ＰＥＳ ５００３Ｐ」、住友化学株式会社製、繰返し単位として、前記Ｐｈ１及び前記Ｐｈ２が置換基を有さないｐ－フェニレン基である前記繰返し単位（１）のみを有するポリマー、１ｇあたりの水酸基の含有量：８．６×１０－５モル／ｇ、還元粘度：０．５１ｄＬ／ｇ） Aromatic polysulfone (A):
Polyether sulfone (trade name "Sumika Excel (registered trademark) PES 5003P", manufactured by Sumitomo Chemical Co., Ltd., as a repeating unit, the above-mentioned Ph 1 and the above-mentioned Ph 2 are p-phenylene groups having no substituents) Polymer having only (1), hydroxyl group content per 1 g: 8.6 x 10 -5 mol/g, reduced viscosity: 0.51 dL/g)
・カーボンブラック（Ｂ）：
ファーネスブラック（三菱ケミカル製、三菱カーボンブラック＃９６０）
一次粒子径：１６ｎｍ
ｐＨ：７．５
揮発分：１．５％
ＤＢＰ吸油量：６９ｃｍ３／１００ｇ
ＢＥＴ比表面積：２６０ｍ２／ｇ ・Carbon black (B):
Furnace black (manufactured by Mitsubishi Chemical, Mitsubishi carbon black #960)
Primary particle size: 16nm
pH: 7.5
Volatile content: 1.5%
DBP oil absorption: 69cm 3 /100g
BET specific surface area: 260m 2 /g
ファーネスブラック（三菱ケミカル製、三菱カーボンブラック＃９６０）
一次粒子径：１６ｎｍ
ｐＨ：７．５
揮発分：１．５％
ＤＢＰ吸油量：６９ｃｍ３／１００ｇ
ＢＥＴ比表面積：２６０ｍ２／ｇ ・Carbon black (B):
Furnace black (manufactured by Mitsubishi Chemical, Mitsubishi carbon black #960)
Primary particle size: 16nm
pH: 7.5
Volatile content: 1.5%
DBP oil absorption: 69cm 3 /100g
BET specific surface area: 260m 2 /g
≪測定≫
［水酸基の含有量］
芳香族ポリスルホン中の前記水酸基の含有量は、所定量の芳香族ポリスルホンをジメチルホルムアミドに溶解させ、過剰量のパラトルエンスルホン酸を加えた後、電位差滴定装置を用いて、０．０５モル／Ｌのカリウムメトキシド／トルエン・メタノール溶液（体積比率トルエン:メタノール＝８：２）で滴定し、残存パラトルエンスルホン酸を中和した後、水酸基を中和し、この水酸基の中和に要したカリウムメトキシドの量（モル）を、芳香族ポリスルホンの前記所定量（ｇ）で割ることにより求めた。 ≪Measurement≫
[Content of hydroxyl groups]
The content of the hydroxyl groups in the aromatic polysulfone is determined by dissolving a predetermined amount of the aromatic polysulfone in dimethylformamide, adding an excess amount of para-toluenesulfonic acid, and then using a potentiometric titration device to determine the content of 0.05 mol/L. After titrating with a potassium methoxide/toluene/methanol solution (volume ratio toluene:methanol = 8:2) to neutralize the remaining para-toluenesulfonic acid, the hydroxyl groups were neutralized, and the potassium required for neutralizing the hydroxyl groups was titrated. It was determined by dividing the amount (mol) of methoxide by the predetermined amount (g) of aromatic polysulfone.
［水酸基の含有量］
芳香族ポリスルホン中の前記水酸基の含有量は、所定量の芳香族ポリスルホンをジメチルホルムアミドに溶解させ、過剰量のパラトルエンスルホン酸を加えた後、電位差滴定装置を用いて、０．０５モル／Ｌのカリウムメトキシド／トルエン・メタノール溶液（体積比率トルエン:メタノール＝８：２）で滴定し、残存パラトルエンスルホン酸を中和した後、水酸基を中和し、この水酸基の中和に要したカリウムメトキシドの量（モル）を、芳香族ポリスルホンの前記所定量（ｇ）で割ることにより求めた。 ≪Measurement≫
[Content of hydroxyl groups]
The content of the hydroxyl groups in the aromatic polysulfone is determined by dissolving a predetermined amount of the aromatic polysulfone in dimethylformamide, adding an excess amount of para-toluenesulfonic acid, and then using a potentiometric titration device to determine the content of 0.05 mol/L. After titrating with a potassium methoxide/toluene/methanol solution (volume ratio toluene:methanol = 8:2) to neutralize the remaining para-toluenesulfonic acid, the hydroxyl groups were neutralized, and the potassium required for neutralizing the hydroxyl groups was titrated. It was determined by dividing the amount (mol) of methoxide by the predetermined amount (g) of aromatic polysulfone.
［芳香族ポリスルホンの還元粘度］
芳香族ポリスルホン約１ｇを精秤し、Ｎ，Ｎ－ジメチルホルムアミドに溶解させて、その容量を１ｄＬとし、この溶液の粘度（η）を、オストワルド型粘度管を用いて、２５℃で測定する。また、溶媒であるＮ，Ｎ－ジメチルホルムアミドの粘度（η０）を、オストワルド型粘度管を用いて、２５℃で測定した。
得られた溶液の粘度（η）と溶媒の粘度（η０）とから、比粘性率（（η－η０）／η０）を求めた。得られた比粘性率を、測定に用いた溶液の濃度（約１ｇ／ｄＬ）で割ることにより得られる値を、芳香族ポリスルホンの還元粘度（ｄＬ／ｇ）とした。 [Reduced viscosity of aromatic polysulfone]
Approximately 1 g of aromatic polysulfone is accurately weighed, dissolved in N,N-dimethylformamide to a volume of 1 dL, and the viscosity (η) of this solution is measured at 25° C. using an Ostwald viscosity tube. Further, the viscosity (η 0 ) of the solvent N,N-dimethylformamide was measured at 25° C. using an Ostwald viscosity tube.
The specific viscosity ((η-η 0 )/η 0 ) was determined from the viscosity (η) of the obtained solution and the viscosity (η 0 ) of the solvent. The value obtained by dividing the obtained specific viscosity by the concentration of the solution used in the measurement (approximately 1 g/dL) was defined as the reduced viscosity (dL/g) of the aromatic polysulfone.
芳香族ポリスルホン約１ｇを精秤し、Ｎ，Ｎ－ジメチルホルムアミドに溶解させて、その容量を１ｄＬとし、この溶液の粘度（η）を、オストワルド型粘度管を用いて、２５℃で測定する。また、溶媒であるＮ，Ｎ－ジメチルホルムアミドの粘度（η０）を、オストワルド型粘度管を用いて、２５℃で測定した。
得られた溶液の粘度（η）と溶媒の粘度（η０）とから、比粘性率（（η－η０）／η０）を求めた。得られた比粘性率を、測定に用いた溶液の濃度（約１ｇ／ｄＬ）で割ることにより得られる値を、芳香族ポリスルホンの還元粘度（ｄＬ／ｇ）とした。 [Reduced viscosity of aromatic polysulfone]
Approximately 1 g of aromatic polysulfone is accurately weighed, dissolved in N,N-dimethylformamide to a volume of 1 dL, and the viscosity (η) of this solution is measured at 25° C. using an Ostwald viscosity tube. Further, the viscosity (η 0 ) of the solvent N,N-dimethylformamide was measured at 25° C. using an Ostwald viscosity tube.
The specific viscosity ((η-η 0 )/η 0 ) was determined from the viscosity (η) of the obtained solution and the viscosity (η 0 ) of the solvent. The value obtained by dividing the obtained specific viscosity by the concentration of the solution used in the measurement (approximately 1 g/dL) was defined as the reduced viscosity (dL/g) of the aromatic polysulfone.
［引張試験］
実施例、参考例、及び比較例で得られた各樹脂組成物のペレットを成形材料として、射出成形機（電気式高性能射出成形機ＮＥＸ５０ＩＶ－５ＥＧ型、日精樹脂工業社製）を使用して、シリンダー温度はノズル３６０℃、前部３６０℃、中部３５０℃、後部３４０℃、金型温度１５０℃、背圧１２ＭＰａ、スクリュー回転数８０ｒｐｍ、射出速度２４ｍｍ/ｓ、射出圧力１５０ＭＰａ、射出時間２秒、保圧１００ＭＰａ、冷却時間３０秒の射出条件によりＩＳＯ試験片Ａ形を取得した。この試験片に対し、ＩＳＯ５２７に準拠し、試験速度５ｍｍ／ｍｉｎにて、２３℃、相対湿度５０％の雰囲気下における、引張破壊エネルギー（Ｊ）を測定した。測定にはテンシロン万能試験機（エー・アンド・デイ社製、ＲＴＧ－１３１０）を用いた。なお、測定は５サンプルについて行い、平均値を求めた。 [Tensile test]
Using the pellets of each resin composition obtained in Examples, Reference Examples, and Comparative Examples as a molding material, an injection molding machine (electric high-performance injection molding machine NEX50IV-5EG model, manufactured by Nissei Jushi Kogyo Co., Ltd.) was used. , cylinder temperature is nozzle 360℃, front 360℃, middle 350℃, rear 340℃, mold temperature 150℃, back pressure 12MPa, screw rotation speed 80rpm, injection speed 24mm/s, injection pressure 150MPa, injection time 2 seconds. An ISO test piece A type was obtained under injection conditions of a holding pressure of 100 MPa and a cooling time of 30 seconds. The tensile fracture energy (J) of this test piece was measured in accordance with ISO527 at a test speed of 5 mm/min at 23° C. and in an atmosphere of 50% relative humidity. A Tensilon universal testing machine (manufactured by A&D, RTG-1310) was used for the measurement. In addition, the measurement was performed on 5 samples, and the average value was calculated.
実施例、参考例、及び比較例で得られた各樹脂組成物のペレットを成形材料として、射出成形機（電気式高性能射出成形機ＮＥＸ５０ＩＶ－５ＥＧ型、日精樹脂工業社製）を使用して、シリンダー温度はノズル３６０℃、前部３６０℃、中部３５０℃、後部３４０℃、金型温度１５０℃、背圧１２ＭＰａ、スクリュー回転数８０ｒｐｍ、射出速度２４ｍｍ/ｓ、射出圧力１５０ＭＰａ、射出時間２秒、保圧１００ＭＰａ、冷却時間３０秒の射出条件によりＩＳＯ試験片Ａ形を取得した。この試験片に対し、ＩＳＯ５２７に準拠し、試験速度５ｍｍ／ｍｉｎにて、２３℃、相対湿度５０％の雰囲気下における、引張破壊エネルギー（Ｊ）を測定した。測定にはテンシロン万能試験機（エー・アンド・デイ社製、ＲＴＧ－１３１０）を用いた。なお、測定は５サンプルについて行い、平均値を求めた。 [Tensile test]
Using the pellets of each resin composition obtained in Examples, Reference Examples, and Comparative Examples as a molding material, an injection molding machine (electric high-performance injection molding machine NEX50IV-5EG model, manufactured by Nissei Jushi Kogyo Co., Ltd.) was used. , cylinder temperature is nozzle 360℃, front 360℃, middle 350℃, rear 340℃, mold temperature 150℃, back pressure 12MPa, screw rotation speed 80rpm, injection speed 24mm/s, injection pressure 150MPa, injection time 2 seconds. An ISO test piece A type was obtained under injection conditions of a holding pressure of 100 MPa and a cooling time of 30 seconds. The tensile fracture energy (J) of this test piece was measured in accordance with ISO527 at a test speed of 5 mm/min at 23° C. and in an atmosphere of 50% relative humidity. A Tensilon universal testing machine (manufactured by A&D, RTG-1310) was used for the measurement. In addition, the measurement was performed on 5 samples, and the average value was calculated.
［摩耗試験］
実施例、参考例、及び比較例で得られた各樹脂組成物のペレットを成形材料として、射出成形機（射出成形機ＳＥ１００ＥＶ－Ａ型、住友重機械工業社製）を使用して、シリンダー温度はノズル３６０℃、前部３６０℃、中部（１）３６０℃、中部（２）３５０℃、後部３４０℃、金型温度１５０℃、背圧５ＭＰａ、スクリュー回転数８０ｒｐｍ、射出速度３０ｍｍ/ｓ、射出圧力１５０ＭＰａ、射出時間０．８秒、保圧１００ＭＰａ、冷却時間２５秒の射出条件により中空円筒試験片（外径２５．６ｍｍ、内径２０ｍｍ、厚み２０ｍｍ）を取得した。鈴木式摩擦摩耗試験機（高千穂精製、リングオンリング）を用い、２３℃に調節された室内にて以下の条件で比摩耗量（ｍｍ３／ｋＮ・ｍ）を測定した。なお、測定は５サンプルについて行い、平均値を求めた。試験条件は以下のとおりである。 [Abrasion test]
Using the pellets of each resin composition obtained in Examples, Reference Examples, and Comparative Examples as molding materials, the cylinder temperature was Nozzle 360℃, front 360℃, middle (1) 360℃, middle (2) 350℃, rear 340℃, mold temperature 150℃, back pressure 5MPa, screw rotation speed 80rpm, injection speed 30mm/s, injection A hollow cylindrical test piece (outer diameter 25.6 mm, inner diameter 20 mm, thickness 20 mm) was obtained under injection conditions of a pressure of 150 MPa, an injection time of 0.8 seconds, a holding pressure of 100 MPa, and a cooling time of 25 seconds. The specific wear amount (mm 3 /kN·m) was measured using a Suzuki friction and wear tester (Takachiho Seiki, Ring-on-Ring) in a room adjusted to 23° C. under the following conditions. In addition, the measurement was performed on 5 samples, and the average value was calculated. The test conditions are as follows.
実施例、参考例、及び比較例で得られた各樹脂組成物のペレットを成形材料として、射出成形機（射出成形機ＳＥ１００ＥＶ－Ａ型、住友重機械工業社製）を使用して、シリンダー温度はノズル３６０℃、前部３６０℃、中部（１）３６０℃、中部（２）３５０℃、後部３４０℃、金型温度１５０℃、背圧５ＭＰａ、スクリュー回転数８０ｒｐｍ、射出速度３０ｍｍ/ｓ、射出圧力１５０ＭＰａ、射出時間０．８秒、保圧１００ＭＰａ、冷却時間２５秒の射出条件により中空円筒試験片（外径２５．６ｍｍ、内径２０ｍｍ、厚み２０ｍｍ）を取得した。鈴木式摩擦摩耗試験機（高千穂精製、リングオンリング）を用い、２３℃に調節された室内にて以下の条件で比摩耗量（ｍｍ３／ｋＮ・ｍ）を測定した。なお、測定は５サンプルについて行い、平均値を求めた。試験条件は以下のとおりである。 [Abrasion test]
Using the pellets of each resin composition obtained in Examples, Reference Examples, and Comparative Examples as molding materials, the cylinder temperature was Nozzle 360℃, front 360℃, middle (1) 360℃, middle (2) 350℃, rear 340℃, mold temperature 150℃, back pressure 5MPa, screw rotation speed 80rpm, injection speed 30mm/s, injection A hollow cylindrical test piece (outer diameter 25.6 mm, inner diameter 20 mm, thickness 20 mm) was obtained under injection conditions of a pressure of 150 MPa, an injection time of 0.8 seconds, a holding pressure of 100 MPa, and a cooling time of 25 seconds. The specific wear amount (mm 3 /kN·m) was measured using a Suzuki friction and wear tester (Takachiho Seiki, Ring-on-Ring) in a room adjusted to 23° C. under the following conditions. In addition, the measurement was performed on 5 samples, and the average value was calculated. The test conditions are as follows.
相手材：外径２５．６ｍｍ、内径２０ｍｍ、厚み３０ｍｍの中空円筒の炭素鋼Ｓ４５Ｃ（Ｒａ：０．０２ｍｍ以下）
試験温度：２３℃
試験速度：３０ｍ／ｍｉｎ
荷重：１５０Ｎ
試験時間：５０ｍｉｎ Mating material: Hollow cylindrical carbon steel S45C with outer diameter 25.6 mm, inner diameter 20 mm, and thickness 30 mm (Ra: 0.02 mm or less)
Test temperature: 23℃
Test speed: 30m/min
Load: 150N
Test time: 50min
試験温度：２３℃
試験速度：３０ｍ／ｍｉｎ
荷重：１５０Ｎ
試験時間：５０ｍｉｎ Mating material: Hollow cylindrical carbon steel S45C with outer diameter 25.6 mm, inner diameter 20 mm, and thickness 30 mm (Ra: 0.02 mm or less)
Test temperature: 23℃
Test speed: 30m/min
Load: 150N
Test time: 50min
［カーボンブラック（Ｂ）の領域間の重心間距離の変動係数］
（画像取得）
各例の樹脂組成物中のカーボンブラックの領域間の重心間距離の平均値及びその標準偏差は、ＳＥＭ画像を画像解析して求めた。
具体的には、実施例、参考例、及び比較例で得られた各樹脂組成物のペレットを成形材料として、ＩＳＯ ５２７に規定される試験片Ａ形を射出成形した。射出成形の条件は、シリンダー温度３５０～４００℃、金型温度１５０℃、背圧１２ＭＰａ、スクリュー回転数８０ｒｐｍ、射出圧力１２０ＭＰａ、射出速度２４ｍｍ／ｓｅｃ、射出時間２秒、保圧１００ＭＰａ、冷却時間２５秒とした。得られた試験片の中央部を切断し、その切断面を研磨機（リファインポリッシャー、笠井商工（株）製）で研磨し、金蒸着装置（イオンスパッターＥ１０１、（株）日立製作所製）にて金蒸着を施し、走査型電子顕微鏡（ＳＥＭ、Ｓ－２３００形、日立走査電子顕微鏡）を用いて観察倍率３０００倍の条件下で観察して、その断面画像を取得した。 [Coefficient of variation of distance between centers of gravity between regions of carbon black (B)]
(Image acquisition)
The average value and standard deviation of the distance between the centers of gravity between regions of carbon black in the resin composition of each example were determined by image analysis of the SEM image.
Specifically, test pieces A type specified in ISO 527 were injection molded using pellets of each resin composition obtained in Examples, Reference Examples, and Comparative Examples as molding materials. The injection molding conditions were: cylinder temperature 350 to 400°C, mold temperature 150°C, back pressure 12 MPa, screw rotation speed 80 rpm, injection pressure 120 MPa, injection speed 24 mm/sec, injection time 2 seconds, holding pressure 100 MPa, cooling time 25. Seconds. The central part of the obtained test piece was cut, and the cut surface was polished with a polisher (Refine Polisher, manufactured by Kasai Shoko Co., Ltd.), and then polished with a gold evaporation device (ion sputter E101, manufactured by Hitachi, Ltd.). Gold was deposited and observed using a scanning electron microscope (SEM, Model S-2300, Hitachi Scanning Electron Microscope) at a magnification of 3000 times to obtain a cross-sectional image.
（画像取得）
各例の樹脂組成物中のカーボンブラックの領域間の重心間距離の平均値及びその標準偏差は、ＳＥＭ画像を画像解析して求めた。
具体的には、実施例、参考例、及び比較例で得られた各樹脂組成物のペレットを成形材料として、ＩＳＯ ５２７に規定される試験片Ａ形を射出成形した。射出成形の条件は、シリンダー温度３５０～４００℃、金型温度１５０℃、背圧１２ＭＰａ、スクリュー回転数８０ｒｐｍ、射出圧力１２０ＭＰａ、射出速度２４ｍｍ／ｓｅｃ、射出時間２秒、保圧１００ＭＰａ、冷却時間２５秒とした。得られた試験片の中央部を切断し、その切断面を研磨機（リファインポリッシャー、笠井商工（株）製）で研磨し、金蒸着装置（イオンスパッターＥ１０１、（株）日立製作所製）にて金蒸着を施し、走査型電子顕微鏡（ＳＥＭ、Ｓ－２３００形、日立走査電子顕微鏡）を用いて観察倍率３０００倍の条件下で観察して、その断面画像を取得した。 [Coefficient of variation of distance between centers of gravity between regions of carbon black (B)]
(Image acquisition)
The average value and standard deviation of the distance between the centers of gravity between regions of carbon black in the resin composition of each example were determined by image analysis of the SEM image.
Specifically, test pieces A type specified in ISO 527 were injection molded using pellets of each resin composition obtained in Examples, Reference Examples, and Comparative Examples as molding materials. The injection molding conditions were: cylinder temperature 350 to 400°C, mold temperature 150°C, back pressure 12 MPa, screw rotation speed 80 rpm, injection pressure 120 MPa, injection speed 24 mm/sec, injection time 2 seconds, holding pressure 100 MPa, cooling time 25. Seconds. The central part of the obtained test piece was cut, and the cut surface was polished with a polisher (Refine Polisher, manufactured by Kasai Shoko Co., Ltd.), and then polished with a gold evaporation device (ion sputter E101, manufactured by Hitachi, Ltd.). Gold was deposited and observed using a scanning electron microscope (SEM, Model S-2300, Hitachi Scanning Electron Microscope) at a magnification of 3000 times to obtain a cross-sectional image.
（解析）
上記で得られた断面画像を画像解析ソフト（三谷商事株式会社製、「ＷｉｎＲＯＯＦ」 Ｖｅｒ．３．５４）を用いて、フィルタサイズ５×５のメディアン処理を行った後、連続相の領域と、凝集体として点在するカーボンブラックの領域と、を二値化処理した（二値化時の閾値は、１００に設定した）。なお、二値化処理の閾値は、目視で画像を確認し、カーボンブラックと他の成分とが区別できるような値に設定すればよい。処理後の画像を用い、明らかにカーボンブラックではない塵やノイズ、画像端の途中で切断されたカーボンブラックの領域を除去した後、カーボンブラックの領域間の重心間距離の平均値とその標準偏差を算出し、それらの値から、標準偏差／平均値で表される変動係数を算出した。
解析には、カーボンブラックの領域が３つ以上含まれる断面画像２０枚分（カーボンブラックの領域数６０個以上）を使用した。 (analysis)
After performing median processing on the cross-sectional image obtained above using image analysis software (manufactured by Mitani Shoji Co., Ltd., "WinROOF" Ver. 3.54) with a filter size of 5 x 5, the continuous phase region and The areas of carbon black scattered as aggregates were subjected to binarization processing (the threshold value at the time of binarization was set to 100). Note that the threshold value for the binarization process may be set to a value that allows carbon black to be distinguished from other components by visually checking the image. Using the processed image, after removing dust and noise that are clearly not carbon black, and areas of carbon black that are cut off in the middle of the image edge, calculate the average value of the center-to-center distance between carbon black areas and its standard deviation. was calculated, and from these values, the coefficient of variation expressed as standard deviation/average value was calculated.
For the analysis, 20 cross-sectional images containing three or more carbon black regions (60 or more carbon black regions) were used.
上記で得られた断面画像を画像解析ソフト（三谷商事株式会社製、「ＷｉｎＲＯＯＦ」 Ｖｅｒ．３．５４）を用いて、フィルタサイズ５×５のメディアン処理を行った後、連続相の領域と、凝集体として点在するカーボンブラックの領域と、を二値化処理した（二値化時の閾値は、１００に設定した）。なお、二値化処理の閾値は、目視で画像を確認し、カーボンブラックと他の成分とが区別できるような値に設定すればよい。処理後の画像を用い、明らかにカーボンブラックではない塵やノイズ、画像端の途中で切断されたカーボンブラックの領域を除去した後、カーボンブラックの領域間の重心間距離の平均値とその標準偏差を算出し、それらの値から、標準偏差／平均値で表される変動係数を算出した。
解析には、カーボンブラックの領域が３つ以上含まれる断面画像２０枚分（カーボンブラックの領域数６０個以上）を使用した。 (analysis)
After performing median processing on the cross-sectional image obtained above using image analysis software (manufactured by Mitani Shoji Co., Ltd., "WinROOF" Ver. 3.54) with a filter size of 5 x 5, the continuous phase region and The areas of carbon black scattered as aggregates were subjected to binarization processing (the threshold value at the time of binarization was set to 100). Note that the threshold value for the binarization process may be set to a value that allows carbon black to be distinguished from other components by visually checking the image. Using the processed image, after removing dust and noise that are clearly not carbon black, and areas of carbon black that are cut off in the middle of the image edge, calculate the average value of the center-to-center distance between carbon black areas and its standard deviation. was calculated, and from these values, the coefficient of variation expressed as standard deviation/average value was calculated.
For the analysis, 20 cross-sectional images containing three or more carbon black regions (60 or more carbon black regions) were used.
図１Ａ～Ｂに、カーボンブラック（Ｂ）の領域間の重心間距離の変動係数の算出に用いたＳＥＭ画像（図１Ａ）と、それを画像解析ソフトにより二値化処理した後、カーボンブラックの領域間の重心間距離と標準偏差とを算出した処理画像（図１Ｂ）の一例を示す。
Figures 1A and 1B show the SEM images (Figure 1A) used to calculate the coefficient of variation of the distance between the centers of gravity between regions of carbon black (B), and the images obtained after binarizing the images using image analysis software. An example of a processed image (FIG. 1B) in which the inter-centroid distance and standard deviation between regions are calculated is shown.
≪製造方法≫
上記の樹脂、及びカーボンブラックを、表１～３に記載の配合量（質量％）で、二軸押出機（株式会社池貝製、「ＰＣＭ－３０」）に投入し、シリンダー温度３２０～３４０℃、スクリュウ回転数１５０ｒｐｍの条件で溶融混練し、直径３ｍｍの円形ノズル（吐出口）を経由してストランド状に吐出し、水温３０℃の水浴に１．５秒間くぐらせた後、引き取り速度４０ｍ／分で引き取り、ローラーを経て、回転刃を６０ｍ／分に調整したストランドカッター（田辺プラスチックス機械株式会社製）にてペレタイズして、各実施例、参考例、及び比較例の樹脂組成物をペレット状で得た。 ≪Manufacturing method≫
The above resin and carbon black were put into a twin screw extruder (manufactured by Ikegai Co., Ltd., "PCM-30") at the blending amounts (mass%) listed in Tables 1 to 3, and the cylinder temperature was 320 to 340°C. The mixture was melted and kneaded at a screw rotation speed of 150 rpm, discharged in the form of a strand through a circular nozzle (discharge port) with a diameter of 3 mm, passed through a water bath at a water temperature of 30°C for 1.5 seconds, and then taken at a speed of 40 m/min. The resin compositions of each Example, Reference Example, and Comparative Example were pelletized using a strand cutter (manufactured by Tanabe Plastics Machinery Co., Ltd.) with a rotary blade adjusted to 60 m/min. I got it in a state.
上記の樹脂、及びカーボンブラックを、表１～３に記載の配合量（質量％）で、二軸押出機（株式会社池貝製、「ＰＣＭ－３０」）に投入し、シリンダー温度３２０～３４０℃、スクリュウ回転数１５０ｒｐｍの条件で溶融混練し、直径３ｍｍの円形ノズル（吐出口）を経由してストランド状に吐出し、水温３０℃の水浴に１．５秒間くぐらせた後、引き取り速度４０ｍ／分で引き取り、ローラーを経て、回転刃を６０ｍ／分に調整したストランドカッター（田辺プラスチックス機械株式会社製）にてペレタイズして、各実施例、参考例、及び比較例の樹脂組成物をペレット状で得た。 ≪Manufacturing method≫
The above resin and carbon black were put into a twin screw extruder (manufactured by Ikegai Co., Ltd., "PCM-30") at the blending amounts (mass%) listed in Tables 1 to 3, and the cylinder temperature was 320 to 340°C. The mixture was melted and kneaded at a screw rotation speed of 150 rpm, discharged in the form of a strand through a circular nozzle (discharge port) with a diameter of 3 mm, passed through a water bath at a water temperature of 30°C for 1.5 seconds, and then taken at a speed of 40 m/min. The resin compositions of each Example, Reference Example, and Comparative Example were pelletized using a strand cutter (manufactured by Tanabe Plastics Machinery Co., Ltd.) with a rotary blade adjusted to 60 m/min. I got it in a state.
樹脂組成物について、各項目を評価した結果を表１～３に示す。
Tables 1 to 3 show the results of evaluating each item for the resin composition.
ＰＥＳ ４１００Ｐ（樹脂（Ｃ））のみを含有し、カーボンブラック（Ｂ）を含有しない参考例１と、各質量％で更にカーボンブラック（Ｂ）を含有する比較例１～３とを参照すると、カーボンブラック（Ｂ）を含有することで、引張破壊エネルギーの値が低下してしまう現象が観察された。
Referring to Reference Example 1, which contains only PES 4100P (resin (C)) and no carbon black (B), and Comparative Examples 1 to 3, which further contain carbon black (B) in each mass%, carbon A phenomenon was observed in which the value of tensile fracture energy decreased due to the inclusion of black (B).
また、ＰＥＳ ４１００Ｐ（樹脂（Ｃ））のみ含有し、カーボンブラック（Ｂ）を含有しない参考例１と、更にＰＥＳ ５００３Ｐ（芳香族ポリスルホン（Ａ））を含有する参考例２とを参照すると、ＰＥＳ ５００３Ｐ（芳香族ポリスルホン（Ａ））を含有することで、引張破壊エネルギーの値がやはり低下してしまう現象が観察された。
In addition, referring to Reference Example 1 which contains only PES 4100P (resin (C)) and no carbon black (B), and Reference Example 2 which further contains PES 5003P (aromatic polysulfone (A)), PES It was observed that by containing 5003P (aromatic polysulfone (A)), the value of tensile fracture energy also decreased.
対して、ＰＥＳ ５００３Ｐ（芳香族ポリスルホン（Ａ））と、カーボンブラック（Ｂ）と、ＰＥＳ ４１００Ｐ（樹脂（Ｃ））とを含有する実施例では、各比較例よりも、引張破壊エネルギーの値が向上していた。
On the other hand, in the example containing PES 5003P (aromatic polysulfone (A)), carbon black (B), and PES 4100P (resin (C)), the value of tensile fracture energy was lower than each comparative example. It was improving.
より具体的には、引張破壊エネルギーの値の向上は、同割合のカーボンブラックを含有する実施例及び比較例同士の対比（実施例１～３と比較例１、実施例４と比較例２、実施例５と比較例３）において、比較例の引張破壊エネルギーを１００とした場合のＩＮＤＥＸ値の向上（１００を超える値）により確認できた。
More specifically, the improvement in the value of tensile fracture energy was determined by comparing Examples and Comparative Examples containing the same proportion of carbon black (Examples 1 to 3 and Comparative Example 1, Example 4 and Comparative Example 2, In Example 5 and Comparative Example 3), this was confirmed by an improvement in the INDEX value (a value exceeding 100) when the tensile fracture energy of the comparative example was set as 100.
また、ＰＥＳ ５００３Ｐ（芳香族ポリスルホン（Ａ））と、カーボンブラック（Ｂ）と、ＰＥＳ ４１００Ｐ（樹脂（Ｃ））とを含有する実施例では、各比較例よりも、比摩耗量の値が減少していた。
In addition, in the examples containing PES 5003P (aromatic polysulfone (A)), carbon black (B), and PES 4100P (resin (C)), the value of specific wear amount was decreased compared to each comparative example. Was.
より具体的には、比摩耗量の値の低下は、同割合のカーボンブラックを含有する実施例及び比較例同士の対比（実施例１～３と比較例１、実施例５と比較例３）において、比較例の比摩耗量を１００とした場合のＩＮＤＥＸ値の向上（１００を超える値）により確認できた。
More specifically, the decrease in the value of specific wear amount was determined by comparing Examples and Comparative Examples containing the same proportion of carbon black (Examples 1 to 3 and Comparative Example 1, and Example 5 and Comparative Example 3). This was confirmed by an improvement in the INDEX value (a value exceeding 100) when the specific wear amount of the comparative example was set to 100.
上記の引張破壊エネルギーの向上及び比摩耗量の減少が確認された各実施例１～５における、カーボンブラックの領域間の重心間距離の変動係数は、いずれも０．５２以下であった。
一方、各比較例のカーボンブラックの領域間の重心間距離の、標準偏差／平均値で表される変動係数は、いずれも０．５２以下の規定を満たしていなかった。 In each of Examples 1 to 5, in which the above-mentioned improvement in tensile fracture energy and reduction in specific wear amount were confirmed, the coefficient of variation of the center-to-gravity distance between carbon black regions was 0.52 or less.
On the other hand, the coefficient of variation expressed as standard deviation/average value of the center-to-gravity distance between regions of carbon black in each comparative example did not satisfy the regulation of 0.52 or less.
一方、各比較例のカーボンブラックの領域間の重心間距離の、標準偏差／平均値で表される変動係数は、いずれも０．５２以下の規定を満たしていなかった。 In each of Examples 1 to 5, in which the above-mentioned improvement in tensile fracture energy and reduction in specific wear amount were confirmed, the coefficient of variation of the center-to-gravity distance between carbon black regions was 0.52 or less.
On the other hand, the coefficient of variation expressed as standard deviation/average value of the center-to-gravity distance between regions of carbon black in each comparative example did not satisfy the regulation of 0.52 or less.
このことから、当該変動係数の値が０．５２以下である樹脂組成物で、引張破壊エネルギーの値が向上することが示された。
また、変動係数の値が０．５２以下である樹脂組成物で、比摩耗量の値が減少することが示された。 From this, it was shown that the value of tensile fracture energy is improved in a resin composition in which the value of the coefficient of variation is 0.52 or less.
Furthermore, it was shown that the value of the specific wear amount decreases with a resin composition having a coefficient of variation value of 0.52 or less.
また、変動係数の値が０．５２以下である樹脂組成物で、比摩耗量の値が減少することが示された。 From this, it was shown that the value of tensile fracture energy is improved in a resin composition in which the value of the coefficient of variation is 0.52 or less.
Furthermore, it was shown that the value of the specific wear amount decreases with a resin composition having a coefficient of variation value of 0.52 or less.
当該カーボンブラックに係る変動係数の規定が、引張破壊エネルギーの向上及び比摩耗量の減少に重要であることは従来知られておらず、本発明を適用した各実施例は、カーボンブラックを含有する樹脂組成物の耐久性及び耐摩耗性の向上において、非常に有用である。
It has not been previously known that the regulation of the coefficient of variation related to carbon black is important for improving tensile fracture energy and reducing specific wear amount. It is very useful in improving the durability and abrasion resistance of resin compositions.
また、ポリエーテルスルホン（芳香族ポリスルホン（Ａ））、及びカーボンブラック（Ｂ）のうち、芳香族ポリスルホン（Ａ）のみを含有する樹脂組成物では、上記の耐久性及び耐摩耗性の向上効果は確認されなかった。
In addition, in a resin composition containing only aromatic polysulfone (A) among polyethersulfone (aromatic polysulfone (A)) and carbon black (B), the above-mentioned effect of improving durability and abrasion resistance is Not confirmed.
このことから、ポリエーテルスルホン（芳香族ポリスルホン（Ａ））と、カーボンブラック（Ｂ）と、の両方を含有する樹脂組成物で、耐久性及び耐摩耗性が向上しており、想定を超える顕著な効果であった。
From this, it was found that a resin composition containing both polyether sulfone (aromatic polysulfone (A)) and carbon black (B) has improved durability and abrasion resistance, which is more noticeable than expected. It was a great effect.
各実施形態における各構成及びそれらの組み合わせ等は一例であり、本発明の趣旨を逸脱しない範囲で、構成の付加、省略、置換、及びその他の変更が可能である。また、本発明は各実施形態によって限定されることはなく、請求項（クレーム）の範囲によってのみ限定される。
The configurations and combinations thereof in each embodiment are merely examples, and additions, omissions, substitutions, and other changes to the configurations are possible without departing from the spirit of the present invention. Furthermore, the present invention is not limited by each embodiment, but only by the scope of the claims.
本発明によれば、芳香族ポリスルホン（Ａ）とカーボンブラック（Ｂ）とを含む樹脂組成物において、引張破壊エネルギーを指標とする耐久性が改善された樹脂組成物を提供できる。
また、本発明によれば、前記樹脂組成物を含む成形体を提供できる。
また、本発明によれば、カーボンブラック（Ｂ）の分散性を向上させるカーボンブラック分散剤を提供できる。 According to the present invention, it is possible to provide a resin composition containing aromatic polysulfone (A) and carbon black (B) that has improved durability as measured by tensile fracture energy.
Further, according to the present invention, a molded article containing the resin composition can be provided.
Moreover, according to the present invention, a carbon black dispersant that improves the dispersibility of carbon black (B) can be provided.
また、本発明によれば、前記樹脂組成物を含む成形体を提供できる。
また、本発明によれば、カーボンブラック（Ｂ）の分散性を向上させるカーボンブラック分散剤を提供できる。 According to the present invention, it is possible to provide a resin composition containing aromatic polysulfone (A) and carbon black (B) that has improved durability as measured by tensile fracture energy.
Further, according to the present invention, a molded article containing the resin composition can be provided.
Moreover, according to the present invention, a carbon black dispersant that improves the dispersibility of carbon black (B) can be provided.
Claims (12)
- 芳香族ポリスルホン（Ａ）と、
カーボンブラック（Ｂ）と、を含み、
前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、
前記カーボンブラック（Ｂ）の領域間の重心間距離の変動係数が０．５２以下である、樹脂組成物。 aromatic polysulfone (A),
including carbon black (B),
The aromatic polysulfone (A) has a hydroxyl group in the molecule,
A resin composition in which the coefficient of variation of the center-to-gravity distance between regions of the carbon black (B) is 0.52 or less. - 前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、請求項１に記載の樹脂組成物。 The resin composition according to claim 1, wherein the content of the hydroxyl groups in the aromatic polysulfone (A) is 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g of the aromatic polysulfone (A). thing.
- 芳香族ポリスルホン（Ａ）と、
カーボンブラック（Ｂ）と、を含み、
前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、
前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、樹脂組成物。 aromatic polysulfone (A),
including carbon black (B),
The aromatic polysulfone (A) has a hydroxyl group in the molecule,
The resin composition, wherein the content of the hydroxyl groups in the aromatic polysulfone (A) is 1×10 −5 mol or more and 40×10 −5 mol or less per 1 g of the aromatic polysulfone (A). - 前記樹脂組成物の総質量に対する、１ｇあたりの水酸基の含有量が１×１０－５モル以上４０×１０－５モル以下である前記芳香族ポリスルホン（Ａ）の含有量の割合が、０．０１質量％以上３０質量％未満である、請求項１～３のいずれか一項に記載の樹脂組成物。 The ratio of the content of the aromatic polysulfone (A) having a hydroxyl group content of 1 x 10 -5 mol or more and 40 x 10 -5 mol or less per 1 g to the total mass of the resin composition is 0.01 The resin composition according to any one of claims 1 to 3, which has a content of % by mass or more and less than 30% by mass.
- 前記樹脂組成物の総質量に対する、前記カーボンブラック（Ｂ）の含有量の割合が、０．０１質量％以上２０質量％未満である、請求項１～３のいずれか一項に記載の樹脂組成物。 The resin composition according to any one of claims 1 to 3, wherein the content ratio of the carbon black (B) to the total mass of the resin composition is 0.01% by mass or more and less than 20% by mass. thing.
- 前記芳香族ポリスルホン（Ａ）の還元粘度が０．２０ｄＬ／ｇ以上である、請求項１～３のいずれか一項に記載の樹脂組成物。 The resin composition according to any one of claims 1 to 3, wherein the aromatic polysulfone (A) has a reduced viscosity of 0.20 dL/g or more.
- 前記芳香族ポリスルホン（Ａ）が、下記式（１）で表される繰返し単位を有する、請求項１～３のいずれか一項に記載の樹脂組成物。
（１）－Ｐｈ１－ＳＯ２－Ｐｈ２－Ｏ－
［式中、Ｐｈ１及びＰｈ２は、それぞれ独立に、フェニレン基を表す。前記フェニレン基にある水素原子は、それぞれ独立に、アルキル基、アリール基、ハロゲン原子、スルホ基、ニトロ基、アミノ基、カルボキシル基、又は水酸基で置換されていてもよい。］ The resin composition according to any one of claims 1 to 3, wherein the aromatic polysulfone (A) has a repeating unit represented by the following formula (1).
(1) -Ph 1 -SO 2 -Ph 2 -O-
[In the formula, Ph 1 and Ph 2 each independently represent a phenylene group. The hydrogen atoms in the phenylene group may be each independently substituted with an alkyl group, an aryl group, a halogen atom, a sulfo group, a nitro group, an amino group, a carboxyl group, or a hydroxyl group. ] - 更に、前記芳香族ポリスルホン（Ａ）以外の樹脂（Ｃ）を含み、
前記樹脂（Ｃ）が熱可塑性樹脂である、請求項１～３のいずれか一項に記載の樹脂組成物。 Furthermore, it contains a resin (C) other than the aromatic polysulfone (A),
The resin composition according to any one of claims 1 to 3, wherein the resin (C) is a thermoplastic resin. - 前記熱可塑性樹脂が、前記芳香族ポリスルホン（Ａ）に該当しない芳香族ポリスルホンである、請求項８に記載の樹脂組成物。 The resin composition according to claim 8, wherein the thermoplastic resin is an aromatic polysulfone that does not fall under the aromatic polysulfone (A).
- 前記カーボンブラック（Ｂ）が、ファーネスブラック又はケッチェンブラックである、請求項１～３のいずれか一項に記載の樹脂組成物。 The resin composition according to any one of claims 1 to 3, wherein the carbon black (B) is furnace black or Ketjen black.
- 請求項１～３のいずれか一項に記載の樹脂組成物を含む、成形体。 A molded article comprising the resin composition according to any one of claims 1 to 3.
- 芳香族ポリスルホン（Ａ）を含有し、前記芳香族ポリスルホン（Ａ）は分子内に水酸基を有し、前記芳香族ポリスルホン（Ａ）の前記水酸基の含有量は、前記芳香族ポリスルホン（Ａ）１ｇあたり１×１０－５モル以上、４０×１０－５モル以下である、カーボンブラック分散剤。 The aromatic polysulfone (A) contains an aromatic polysulfone (A), the aromatic polysulfone (A) has a hydroxyl group in the molecule, and the content of the hydroxyl group in the aromatic polysulfone (A) is per 1 g of the aromatic polysulfone (A). A carbon black dispersant having an amount of 1×10 −5 mol or more and 40×10 −5 mol or less.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03174466A (en) * | 1989-12-01 | 1991-07-29 | Sumitomo Chem Co Ltd | Aromatic polysulfone resin composition |
| JPH0831230A (en) * | 1994-07-14 | 1996-02-02 | Mitsui Toatsu Chem Inc | Semiconductor aromatic polysulfone resin composition |
| JP2002105315A (en) * | 2000-09-29 | 2002-04-10 | Sumitomo Chem Co Ltd | Aromatic polysulfone resin film, method for producing the same and solution composition for producing the same |
| WO2012057143A1 (en) * | 2010-10-29 | 2012-05-03 | 住友化学株式会社 | Polysulfone composition |
-
2023
- 2023-05-19 WO PCT/JP2023/018701 patent/WO2023228875A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03174466A (en) * | 1989-12-01 | 1991-07-29 | Sumitomo Chem Co Ltd | Aromatic polysulfone resin composition |
| JPH0831230A (en) * | 1994-07-14 | 1996-02-02 | Mitsui Toatsu Chem Inc | Semiconductor aromatic polysulfone resin composition |
| JP2002105315A (en) * | 2000-09-29 | 2002-04-10 | Sumitomo Chem Co Ltd | Aromatic polysulfone resin film, method for producing the same and solution composition for producing the same |
| WO2012057143A1 (en) * | 2010-10-29 | 2012-05-03 | 住友化学株式会社 | Polysulfone composition |
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