JP2013170231A - Coating material - Google Patents
Coating material Download PDFInfo
- Publication number
- JP2013170231A JP2013170231A JP2012035404A JP2012035404A JP2013170231A JP 2013170231 A JP2013170231 A JP 2013170231A JP 2012035404 A JP2012035404 A JP 2012035404A JP 2012035404 A JP2012035404 A JP 2012035404A JP 2013170231 A JP2013170231 A JP 2013170231A
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- Japan
- Prior art keywords
- component
- molecular weight
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- powder
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- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000576 coating method Methods 0.000 title claims abstract description 125
- 239000011248 coating agent Substances 0.000 title claims abstract description 122
- 239000000463 material Substances 0.000 title claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 106
- 239000002245 particle Substances 0.000 claims abstract description 78
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 68
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 68
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 6
- 239000003973 paint Substances 0.000 claims description 30
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 11
- 229920000647 polyepoxide Polymers 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 5
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 5
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- 229920001225 polyester resin Polymers 0.000 claims description 5
- 239000004645 polyester resin Substances 0.000 claims description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 5
- 239000008096 xylene Substances 0.000 claims description 5
- 239000004640 Melamine resin Substances 0.000 claims description 4
- 229920000877 Melamine resin Polymers 0.000 claims description 4
- 150000001298 alcohols Chemical class 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 150000002576 ketones Chemical class 0.000 claims description 4
- 229920002050 silicone resin Polymers 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 abstract description 17
- 230000007797 corrosion Effects 0.000 abstract description 17
- 238000011156 evaluation Methods 0.000 description 22
- 239000000126 substance Substances 0.000 description 16
- -1 polyethylene Polymers 0.000 description 14
- 229920000642 polymer Polymers 0.000 description 14
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 229920005672 polyolefin resin Polymers 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- 239000002216 antistatic agent Substances 0.000 description 9
- 238000004070 electrodeposition Methods 0.000 description 9
- 238000006116 polymerization reaction Methods 0.000 description 9
- 239000003963 antioxidant agent Substances 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 7
- 230000001186 cumulative effect Effects 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 239000006096 absorbing agent Substances 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 4
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 4
- 150000002894 organic compounds Chemical class 0.000 description 4
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 4
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 239000000417 fungicide Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 239000004711 α-olefin Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 229920005789 ACRONAL® acrylic binder Polymers 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229920001651 Cyanoacrylate Polymers 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical group C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 2
- IBVAQQYNSHJXBV-UHFFFAOYSA-N adipic acid dihydrazide Chemical compound NNC(=O)CCCCC(=O)NN IBVAQQYNSHJXBV-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000002519 antifouling agent Substances 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 2
- 239000012965 benzophenone Substances 0.000 description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 2
- 239000012964 benzotriazole Substances 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000000855 fungicidal effect Effects 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 150000002484 inorganic compounds Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000001023 inorganic pigment Substances 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methylcyclopentane Chemical group CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 229920003986 novolac Polymers 0.000 description 2
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 239000012860 organic pigment Substances 0.000 description 2
- 239000002530 phenolic antioxidant Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 239000011163 secondary particle Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- VCRZAKVGPJFABU-UHFFFAOYSA-N 10-phenoxarsinin-10-yloxyphenoxarsinine Chemical compound C12=CC=CC=C2OC2=CC=CC=C2[As]1O[As]1C2=CC=CC=C2OC2=CC=CC=C21 VCRZAKVGPJFABU-UHFFFAOYSA-N 0.000 description 1
- NCDBYAPSWOPDRN-UHFFFAOYSA-N 2-[dichloro(fluoro)methyl]sulfanylisoindole-1,3-dione Chemical compound C1=CC=C2C(=O)N(SC(Cl)(Cl)F)C(=O)C2=C1 NCDBYAPSWOPDRN-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- CGLVZFOCZLHKOH-UHFFFAOYSA-N 8,18-dichloro-5,15-diethyl-5,15-dihydrodiindolo(3,2-b:3',2'-m)triphenodioxazine Chemical compound CCN1C2=CC=CC=C2C2=C1C=C1OC3=C(Cl)C4=NC(C=C5C6=CC=CC=C6N(C5=C5)CC)=C5OC4=C(Cl)C3=NC1=C2 CGLVZFOCZLHKOH-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 description 1
- 239000003508 Dilauryl thiodipropionate Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- YXLXNENXOJSQEI-UHFFFAOYSA-L Oxine-copper Chemical compound [Cu+2].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 YXLXNENXOJSQEI-UHFFFAOYSA-L 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000005823 Propineb Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 1
- 239000011954 Ziegler–Natta catalyst Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- ZJKCITHLCNCAHA-UHFFFAOYSA-K aluminum dioxidophosphanium Chemical compound [Al+3].[O-][PH2]=O.[O-][PH2]=O.[O-][PH2]=O ZJKCITHLCNCAHA-UHFFFAOYSA-K 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 229940116318 copper carbonate Drugs 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 229940120693 copper naphthenate Drugs 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 1
- QHNCWVQDOPICKC-UHFFFAOYSA-N copper;1-hydroxypyridine-2-thione Chemical compound [Cu].ON1C=CC=CC1=S.ON1C=CC=CC1=S QHNCWVQDOPICKC-UHFFFAOYSA-N 0.000 description 1
- CSFHHDBCKILMMF-UHFFFAOYSA-N copper;2-nonylphenol Chemical compound [Cu].CCCCCCCCCC1=CC=CC=C1O CSFHHDBCKILMMF-UHFFFAOYSA-N 0.000 description 1
- SEVNKWFHTNVOLD-UHFFFAOYSA-L copper;3-(4-ethylcyclohexyl)propanoate;3-(3-ethylcyclopentyl)propanoate Chemical compound [Cu+2].CCC1CCC(CCC([O-])=O)C1.CCC1CCC(CCC([O-])=O)CC1 SEVNKWFHTNVOLD-UHFFFAOYSA-L 0.000 description 1
- GEZOTWYUIKXWOA-UHFFFAOYSA-L copper;carbonate Chemical compound [Cu+2].[O-]C([O-])=O GEZOTWYUIKXWOA-UHFFFAOYSA-L 0.000 description 1
- BQVVSSAWECGTRN-UHFFFAOYSA-L copper;dithiocyanate Chemical compound [Cu+2].[S-]C#N.[S-]C#N BQVVSSAWECGTRN-UHFFFAOYSA-L 0.000 description 1
- QYBZRRUECLSRCO-UHFFFAOYSA-N copper;ethane-1,2-diamine Chemical compound [Cu].NCCN.NCCN QYBZRRUECLSRCO-UHFFFAOYSA-N 0.000 description 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 1
- 229940112669 cuprous oxide Drugs 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 1
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 description 1
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- IFDFMWBBLAUYIW-UHFFFAOYSA-N ethane-1,2-diol;ethyl acetate Chemical compound OCCO.CCOC(C)=O IFDFMWBBLAUYIW-UHFFFAOYSA-N 0.000 description 1
- 229960003750 ethyl chloride Drugs 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 238000012685 gas phase polymerization Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical class C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 238000007749 high velocity oxygen fuel spraying Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000012968 metallocene catalyst Substances 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- BLCKKNLGFULNRC-UHFFFAOYSA-L n,n-dimethylcarbamodithioate;nickel(2+) Chemical compound [Ni+2].CN(C)C([S-])=S.CN(C)C([S-])=S BLCKKNLGFULNRC-UHFFFAOYSA-L 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 229940078494 nickel acetate Drugs 0.000 description 1
- 150000002816 nickel compounds Chemical class 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- IZUPBVBPLAPZRR-UHFFFAOYSA-M pentachlorophenolate Chemical compound [O-]C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl IZUPBVBPLAPZRR-UHFFFAOYSA-M 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- DOIRQSBPFJWKBE-UHFFFAOYSA-N phthalic acid di-n-butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000120 polyethyl acrylate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- KKMLIVYBGSAJPM-UHFFFAOYSA-L propineb Chemical compound [Zn+2].[S-]C(=S)NC(C)CNC([S-])=S KKMLIVYBGSAJPM-UHFFFAOYSA-L 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 239000006120 scratch resistant coating Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229940043810 zinc pyrithione Drugs 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- PICXIOQBANWBIZ-UHFFFAOYSA-N zinc;1-oxidopyridine-2-thione Chemical compound [Zn+2].[O-]N1C=CC=CC1=S.[O-]N1C=CC=CC1=S PICXIOQBANWBIZ-UHFFFAOYSA-N 0.000 description 1
- NRINZBKAERVHFW-UHFFFAOYSA-L zinc;dicarbamate Chemical compound [Zn+2].NC([O-])=O.NC([O-])=O NRINZBKAERVHFW-UHFFFAOYSA-L 0.000 description 1
- AMHNZOICSMBGDH-UHFFFAOYSA-L zineb Chemical compound [Zn+2].[S-]C(=S)NCCNC([S-])=S AMHNZOICSMBGDH-UHFFFAOYSA-L 0.000 description 1
- DUBNHZYBDBBJHD-UHFFFAOYSA-L ziram Chemical compound [Zn+2].CN(C)C([S-])=S.CN(C)C([S-])=S DUBNHZYBDBBJHD-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
Description
本発明は、超高分子量ポリエチレンパウダーを含有することにより、形成された塗膜表面の摩擦係数が低く耐傷性に優れ、かつ耐チッピング性、耐食性に優れた塗料に関する。 The present invention relates to a coating material that contains an ultra-high molecular weight polyethylene powder, has a low coefficient of friction on the surface of the formed coating film, is excellent in scratch resistance, and is excellent in chipping resistance and corrosion resistance.
従来から塗料材料は様々な用途の表面を保護する目的で使用されてきており、近年ではそれに要求される特性が高度化している。特に塗膜にさらに高い耐食性や耐傷性、自動車の走行時に跳ね上げられた石等の衝突による塗膜の損傷に対する耐性を示す耐チッピング性を付与させる要求が高まっており、これまでに種々の検討がなされてきた。 Conventionally, coating materials have been used for the purpose of protecting the surfaces of various applications, and in recent years, the properties required for them have become sophisticated. In particular, there has been an increasing demand for imparting chipping resistance to the coating film, which shows higher corrosion resistance and scratch resistance, and resistance to damage to the coating film due to the impact of stones and the like that are thrown up when the vehicle is running. Has been made.
エポキシ基と反応する官能基を有するゴムで変性したエポキシ樹脂にカルボキシル基を有するゴム粒子を配合することにより、塗膜にゴム弾性を付与することで耐チッピング性を向上させた技術が知られている（特許文献１）。この方法によれば、ゴム粒子の添加によるゴム弾性付与によって耐チッピング性は向上されるものの、塗膜の耐傷性が不十分である。 A technology that improves chipping resistance by imparting rubber elasticity to the coating film by blending rubber particles having carboxyl groups with epoxy resins modified with rubber having functional groups that react with epoxy groups is known. (Patent Document 1). According to this method, although the chipping resistance is improved by imparting rubber elasticity by adding rubber particles, the scratch resistance of the coating film is insufficient.
また、オレフィン系樹脂を主成分とした有機樹脂成分からなるゾルを用いて塗装基材表面に被膜を形成させる技術が知られている（特許文献２）。この方法によれば、確かに塗装性や基材への密着性に優れた塗膜が形成されるものの、オレフィン系樹脂粒子が比較的柔らかく耐久性が劣るため、塗膜の耐傷性や耐食性は満足できるものではない。 Moreover, the technique which forms a film on the coating base-material surface using the sol which consists of an organic resin component which has olefin resin as a main component is known (patent document 2). According to this method, although a coating film having excellent paintability and adhesion to a substrate is formed, the olefin resin particles are relatively soft and inferior in durability, so the scratch resistance and corrosion resistance of the coating film are It is not satisfactory.
さらにフッ素樹脂パウダーとポリオレフィン系樹脂ワックス粒子を含有し、膜表面の耐傷性と耐食性を改良した技術が知られている（特許文献３）。この方法に寄れば、フッ素樹脂パウダーとポリオレフィン系樹脂ワックス粒子双方の効果により、確かに表面の摩擦抵抗が低下し、耐傷性の向上が認められる。しかしながら、耐傷性能は未だ満足できるものではなく、ポリオレフィンワックスからのオリゴマー成分の溶出が懸念される。また、フッ素樹脂の添加により、耐食性の向上は期待できるものの、フッ素樹脂は非常に高価であるため、経済的な課題が残る。 Furthermore, a technique is known that contains fluororesin powder and polyolefin resin wax particles and improves the scratch resistance and corrosion resistance of the film surface (Patent Document 3). According to this method, the effect of both the fluororesin powder and the polyolefin resin wax particles can surely reduce the frictional resistance of the surface and improve the scratch resistance. However, the scratch resistance performance is not yet satisfactory, and there is a concern about the dissolution of the oligomer component from the polyolefin wax. Although the addition of a fluororesin can be expected to improve the corrosion resistance, the fluororesin is very expensive, so an economic problem remains.
これまでの塗料材料では、ゴム成分やポリオレフィン系樹脂、フッ素樹脂を添加することにより、塗膜の弾性を向上させ又は摩擦係数を低減させて、耐傷性や耐チッピング性、耐食性を付与する方法が検討されてきている。しかしながら、さらに高いレベルでの耐傷性、耐チッピング性、耐食性が要求される用途に対して、その性能はいまだ満足できるものではなかった。従って、本発明では、得られる塗膜の低摩擦係数と耐擦り傷性、耐チッピング性及び耐食性を同時に高いレベルで達成可能な塗料を提供することを課題とする。 In conventional coating materials, there is a method of imparting scratch resistance, chipping resistance, and corrosion resistance by adding a rubber component, polyolefin resin, or fluororesin to improve the elasticity of the coating film or reduce the friction coefficient. It has been studied. However, the performance is still unsatisfactory for applications that require higher levels of scratch resistance, chipping resistance, and corrosion resistance. Therefore, an object of the present invention is to provide a coating material that can achieve a low friction coefficient, scratch resistance, chipping resistance, and corrosion resistance at the same time at a high level.
本発明者らは、上記課題を解決するために鋭意検討を行った結果、驚くべきことに粘度平均分子量が１０万〜１０００万などの所定の特性を有する超高分子量ポリエチレンパウダーを単独で、または従来の塗料原料に添加することにより、これまでにない極めて優れた耐傷性と耐チッピング性、耐食性を有する塗膜が得られることを見出し、本発明に至った。 As a result of diligent studies to solve the above problems, the present inventors surprisingly found that ultrahigh molecular weight polyethylene powder having a predetermined property such as a viscosity average molecular weight of 100,000 to 10,000,000 alone or It has been found that by adding to conventional paint raw materials, a coating film having extremely excellent scratch resistance, chipping resistance, and corrosion resistance can be obtained.
即ち、本発明の構成は、以下のとおりである。
（１）（ａ）成分として、粘度平均分子量が１０万〜１０００万であって、密度が９１５ｋｇ／ｍ３以上であり、平均粒径が１５０μｍ以下である超高分子量ポリエチレンパウダーを含有することを特徴とする塗料。
（２）さらに（ｂ）成分として熱硬化性樹脂を含有し、（ａ）成分と（ｂ）成分の質量比が、（ａ）／（ｂ）＝９９．９９／０．０１〜０．１／９９．９であることを特徴とする上記（１）項に記載の塗料。
（３）（ａ）成分と（ｂ）成分の質量比が、（ａ）／（ｂ）＝９０／１０〜１／９９であることを特徴とする上記（２）項に記載の塗料。
（４）（ａ）成分の平均粒径が１１０μｍ以下であることを特徴とする上記（１）〜（３）項のいずれか１項に記載の塗料。
（５）（ａ）成分のうち、粒径２００μｍ以上のパウダーが、（ａ）成分全体を１００質量％として、５質量％以下であることを特徴とする上記（１）〜（４）項のいずれか１項に記載の塗料。
（６）（ｂ）成分が、エポキシ樹脂、アクリル樹脂、メラミン樹脂、ポリエステル樹脂、フェノール樹脂、ウレタン樹脂、及びシリコーン樹脂の中から選ばれる少なくとも１つであることを特徴とする上記（２）〜（５）項のいずれか１項に記載の塗料。
（７）さらに（ｃ）成分として、脂肪族炭化水素、芳香族炭化水素、ケトン、エステル、アルコール、及び水の中から選ばれる少なくとも１つを含有することを特徴とする上記（１）〜（６）項のいずれか１項に記載の塗料。
（８）（ｃ）成分が、ベンゼン、トルエン、キシレン、及び水の中から選ばれる少なくとも１つであることを特徴とする上記（７）項に記載の塗料。
（９）得られる塗膜の動摩擦係数が０．２５以下である、上記（１）〜（８）項のいずれか１項に記載の塗料。
That is, the configuration of the present invention is as follows.
(1) As component (a), an ultra high molecular weight polyethylene powder having a viscosity average molecular weight of 100,000 to 10,000,000, a density of 915 kg / m 3 or more, and an average particle size of 150 μm or less is contained. Characteristic paint.
(2) Further, a thermosetting resin is contained as the component (b), and the mass ratio of the component (a) to the component (b) is (a) / (b) = 99.99 / 0.01 to 0.1. /99.9 The coating material as described in the above item (1), which is
(3) The paint as described in the above item (2), wherein the mass ratio of the component (a) and the component (b) is (a) / (b) = 90/10 to 1/99.
(4) The paint according to any one of (1) to (3) above, wherein the component (a) has an average particle size of 110 μm or less.
(5) Among the components (a), the powder having a particle size of 200 μm or more is 5% by mass or less with the total amount of the component (a) being 100% by mass, and the above (1) to (4) The paint according to any one of the above.
(6) The component (b) is at least one selected from an epoxy resin, an acrylic resin, a melamine resin, a polyester resin, a phenol resin, a urethane resin, and a silicone resin. (5) The coating material according to any one of items.
(7) The component (c) further contains at least one selected from aliphatic hydrocarbons, aromatic hydrocarbons, ketones, esters, alcohols, and water as the component (c). 6. The paint according to any one of items 6).
(8) The coating material according to item (7), wherein the component (c) is at least one selected from benzene, toluene, xylene, and water.
(9) The paint according to any one of (1) to (8) above, wherein the obtained coating film has a dynamic friction coefficient of 0.25 or less.
本発明の塗料は、所定の特性を有する超高分子量ポリエチレンパウダーを含有するため、形成された塗膜表面の摩擦係数が低く優れた耐傷性を有し、かつ、優れた耐チッピング性、耐食性を有する。そのため、高い耐傷性や耐チッピング性、耐食性が要求される塗料用途に有用である。 Since the paint of the present invention contains ultra high molecular weight polyethylene powder having predetermined characteristics, the formed coating film surface has a low coefficient of friction and excellent scratch resistance, and has excellent chipping resistance and corrosion resistance. Have. Therefore, it is useful for coating applications that require high scratch resistance, chipping resistance, and corrosion resistance.
本発明について、以下具体的に説明する。
本発明の塗料は、（ａ）成分として、粘度平均分子量が１０万〜１０００万であって、密度が９１５ｋｇ／ｍ３以上であり、平均粒径が１５０μｍ以下である超高分子量ポリエチレンパウダーを含有するものである。塗料の形態は、粉体状、溶液状、またはスラリー状であってよい。
The present invention will be specifically described below.
The paint of the present invention contains, as component (a), an ultrahigh molecular weight polyethylene powder having a viscosity average molecular weight of 100,000 to 10,000,000, a density of 915 kg / m 3 or more, and an average particle size of 150 μm or less. To do. The form of the paint may be in the form of powder, solution, or slurry.
本発明に使用される（ａ）成分、すなわち超高分子量ポリエチレンパウダーを構成するポリエチレンは、エチレンの単独重合体であってもよいし、あるいは、エチレンと、プロピレン、１−ブテン、1−ペンテン、１−ヘキセン、１−オクテンのようなαオレフィンとの共重合体であってもよい。αオレフィンの含有量は、本発明に使用される超高分子量ポリエチレンパウダーの密度を満足できる範囲内で任意に決定することができる。 The component (a) used in the present invention, that is, the polyethylene constituting the ultrahigh molecular weight polyethylene powder may be a homopolymer of ethylene, or ethylene and propylene, 1-butene, 1-pentene, Copolymers with α-olefins such as 1-hexene and 1-octene may also be used. The content of α-olefin can be arbitrarily determined within a range in which the density of the ultrahigh molecular weight polyethylene powder used in the present invention can be satisfied.
（ａ）成分の超高分子量ポリエチレンパウダーは、粘度平均分子量（Ｍｖ）が１０万〜１０００万の範囲である。耐食性及び耐チッピング性を向上させる観点から、超高分子量ポリエチレンパウダーの粘度平均分子量の下限は、１０万であり、３０万がより好ましく、１００万がさらに好ましく、２００万が特に好ましい。超高分子量ポリエチレンパウダーの粘度平均分子量の上限は、パウダーの安定生産性を向上させる観点、粒度制御を良好にする観点から、１０００万であり、８００万がより好ましく、６００万がさらに好ましく、５００万が特に好ましい。 The ultrahigh molecular weight polyethylene powder (a) has a viscosity average molecular weight (Mv) in the range of 100,000 to 10 million. From the viewpoint of improving corrosion resistance and chipping resistance, the lower limit of the viscosity average molecular weight of the ultrahigh molecular weight polyethylene powder is 100,000, more preferably 300,000, still more preferably 1,000,000, and particularly preferably 2,000,000. The upper limit of the viscosity average molecular weight of the ultrahigh molecular weight polyethylene powder is 10 million, more preferably 8 million, more preferably 6 million, from the viewpoint of improving the stable productivity of the powder and improving the particle size control, 500 Ten thousand is particularly preferred.
（ａ）成分の超高分子量ポリエチレンパウダーの粘度平均分子量は、例えば、以下に示す方法によって求められる。まず、２０ミリリットルのデカリン（デカヒドロナフタレン）にポリマー１０ｍｇを入れ、１５０℃で２時間攪拌してポリマーを溶解させ、その溶液を１３５℃の恒温槽で、ウベローデタイプの粘度計を用いて、標線間の落下時間（ｔｓ）を測定する。同様に、ポリマー５ｍｇの場合についても、標線間の落下時間（ｔｓ）を測定する。ブランクとしてポリマーを入れていない、デカリンのみの落下時間（ｔｂ）を測定する。これらの測定値を用い、以下の式に従って求めたポリマーの比粘度（ηｓｐ／Ｃ）をそれぞれプロットして濃度（Ｃ）とポリマーの比粘度（ηｓｐ／Ｃ）の直線式を導き、濃度０に外挿した極限粘度（η）を求める。
ηｓｐ／Ｃ＝（ｔｓ／ｔｂ−１）／０．１
この極限粘度（η）から以下の式に従い、粘度平均分子量（Ｍｖ）を求めることができる。
Ｍｖ＝５．３４×１０４η１．４９
The viscosity average molecular weight of the ultrahigh molecular weight polyethylene powder as the component (a) is determined by, for example, the following method. First, 10 mg of polymer was placed in 20 ml of decalin (decahydronaphthalene), stirred for 2 hours at 150 ° C. to dissolve the polymer, and the solution was standardized using a Ubbelohde type viscometer in a thermostatic bath at 135 ° C. Measure the drop time (ts) between the lines. Similarly, for the case of 5 mg of polymer, the drop time (ts) between marked lines is measured. The fall time (tb) of only decalin without a polymer as a blank is measured. Using these measured values, the specific viscosity (ηsp / C) of the polymer determined according to the following equation is plotted to derive a linear expression of the concentration (C) and the specific viscosity of the polymer (ηsp / C). Obtain extrapolated intrinsic viscosity (η).
ηsp / C = (ts / tb−1) /0.1
From this intrinsic viscosity (η), the viscosity average molecular weight (Mv) can be determined according to the following formula.
Mv = 5.34 × 10 4 η 1.49
（ａ）成分の超高分子量ポリエチレンパウダーの密度は、塗料から形成される塗膜の高い耐傷性、耐チッピング性及び耐食性をバランス良く得る観点から、９１５ｋｇ／ｍ３以上であり、９２５ｋｇ／ｍ３以上であることが好ましく、９３０ｋｇ／ｍ３以上であることがさらに好ましい。また、（ａ）成分の超高分子量ポリエチレンパウダーの密度の上限は、特に限定されない。通常は１０００ｋｇ／ｍ３以下であってもよく、より一般的には９８０ｋｇ／ｍ３以下であってもよく、典型的には９７０ｋｇ／ｍ３以下であってもよい。ここで言う密度とは、超高分子量ポリエチレンパウダーのプレスシートから切り出した切片を用い、ＪＩＳ Ｋ７１１２に準じて測定した値である。例えば、当該ポリエチレンの密度の算出には、２００ｍｍ×２００ｍｍ×厚み４ｍｍの金型に超高分子量ポリエチレンパウダー１８０ｇを投入し、設定温度２００℃のプレス機で、１０ｋｇ／ｃｍ２で５分間予熱し、３回脱泡操作を行い、１５０ｋｇ／ｃｍ２で１５分間プレスすることにより得られたプレスシートを使用することができる。 The density of ultrahigh molecular weight polyethylene powder of the component (a), a high scratch resistant coating film formed from the paint, from the viewpoint of obtaining good balance chipping resistance and corrosion resistance, it is 915 kg / m 3 or more, 925 kg / m 3 It is preferable that it is above, and it is more preferable that it is 930 kg / m 3 or more. Moreover, the upper limit of the density of the ultrahigh molecular weight polyethylene powder of the component (a) is not particularly limited. Usually, it may be 1000 kg / m 3 or less, more generally 980 kg / m 3 or less, and typically 970 kg / m 3 or less. The density mentioned here is a value measured according to JIS K7112, using a slice cut out from a press sheet of ultrahigh molecular weight polyethylene powder. For example, to calculate the density of the polyethylene, 180 g of ultrahigh molecular weight polyethylene powder is put into a 200 mm × 200 mm × 4 mm thick mold, preheated at 10 kg / cm 2 for 5 minutes with a press machine at a set temperature of 200 ° C., A press sheet obtained by performing the defoaming operation three times and pressing at 150 kg / cm 2 for 15 minutes can be used.
（ａ）成分の超高分子量ポリエチレンパウダーの平均粒径は１５０μｍ以下であり、１１０μｍ以下であることが好ましく、７５μｍ以下であることがさらに好ましい。超高分子量ポリエチレンパウダーの平均粒径が１５０μｍ以下であることによって、塗料から得られる塗膜の平滑性が良好になり、他の媒体へ分散させた際の均一性が向上するため好ましい。超高分子量ポリエチレンパウダーの平均粒径が１１０μｍ以下である場合には、これらの利点がさらに大きくなる。またハンドリングや粉じん爆発の危険性を低下させる観点から、当該超高分子量ポリエチレンパウダーの平均粒径は、０．０１μｍより大きいことが好ましく、１μｍより大きいことがさらに好ましく、３０μｍより大きいことが特に好ましい。 The average particle size of the ultrahigh molecular weight polyethylene powder of component (a) is 150 μm or less, preferably 110 μm or less, and more preferably 75 μm or less. The average particle size of the ultrahigh molecular weight polyethylene powder is preferably 150 μm or less, since the smoothness of the coating film obtained from the coating becomes good and the uniformity when dispersed in another medium is preferable. When the average particle diameter of the ultra high molecular weight polyethylene powder is 110 μm or less, these advantages are further increased. Further, from the viewpoint of reducing the risk of handling and dust explosion, the average particle size of the ultra-high molecular weight polyethylene powder is preferably larger than 0.01 μm, more preferably larger than 1 μm, and particularly preferably larger than 30 μm. .
（ａ）成分の超高分子量ポリエチレンパウダーの平均粒径とは、累積重量が５０％となる粒子径、すなわちメディアン径である。この平均粒径の算出方法を詳細に説明する。
１）重合により製造された状態の、または重合後に粉砕工程を実施された超高分子量ポリエチレンパウダーを、ＪＩＳ Ｚ８８０１規格に準拠した標準ふるいにかけて分級する。
２）各分画毎に回収されたパウダー重量を測定する。
３）分級前のパウダー合計重量に対する各分画の重量分率（％）を算出する。
４）粒径が最も大きなパウダー分画の重量分率から順に、各分画の重量分率を累積する。
５）最終的には、最も細かいパウダー分画の重量分率を加えると１００重量％となる。
６）縦軸を粒径、横軸を累積重量分率としてプロットする。
７）ポリマー粒径と粒径分画毎の累積重量分率の直線式を導き、累積重量分率５０％に外挿した粒径を平均粒径とする。
The average particle diameter of the ultrahigh molecular weight polyethylene powder of component (a) is the particle diameter at which the cumulative weight is 50%, that is, the median diameter. The method for calculating the average particle size will be described in detail.
1) The ultra-high molecular weight polyethylene powder in a state produced by polymerization or subjected to a pulverization step after polymerization is classified through a standard sieve in accordance with JIS Z8801 standard.
2) The weight of the powder collected for each fraction is measured.
3) Calculate the weight fraction (%) of each fraction with respect to the total powder weight before classification.
4) Accumulate the weight fraction of each fraction in order from the weight fraction of the powder fraction with the largest particle size.
5) Eventually, when the weight fraction of the finest powder fraction is added, it becomes 100% by weight.
6) Plot the vertical axis as particle size and the horizontal axis as cumulative weight fraction.
7) A linear expression of the polymer particle size and the cumulative weight fraction for each particle size fraction is derived, and the particle size extrapolated to a cumulative weight fraction of 50% is taken as the average particle size.
（ａ）成分の超高分子量ポリエチレンパウダーは、懸濁重合法、気相重合法あるいは溶液重合法により、エチレンを単独重合、あるいはプロピレン、１−ブテン、1−ペンテン、１−ヘキセン、１−オクテンのようなαオレフィンとエチレンを共重合させることで製造できる。上述のとおり、αオレフィンの含有量は、本発明に使用される超高分子量ポリエチレンパウダーの密度を満足できる範囲内で任意に決定することができる。 The ultra high molecular weight polyethylene powder as component (a) is obtained by homopolymerizing ethylene by suspension polymerization, gas phase polymerization or solution polymerization, or propylene, 1-butene, 1-pentene, 1-hexene, 1-octene. It can manufacture by copolymerizing (alpha) olefin like this and ethylene. As described above, the α-olefin content can be arbitrarily determined within a range in which the density of the ultrahigh molecular weight polyethylene powder used in the present invention can be satisfied.
懸濁重合法においては、触媒として、チーグラーナッタ系触媒やクロム系触媒、メタロセン触媒を使用できる。媒体として不活性炭化水素媒体を用いることができ、さらにオレフィン自身を溶媒として用いることもできる。かかる不活性炭化水素媒体としては、具体的には、イソブタン、ペンタン、イソペンタン、ヘキサン、ヘプタン、オクタン、デカン、ドデカン、灯油等の脂肪族炭化水素；シクロペンタン、シクロヘキサン、メチルシクロペンタン等の脂環族炭化水素；ベンゼン、トルエン、キシレン等の芳香族炭化水素；エチルクロライド、クロルベンゼン、ジクロロメタン等のハロゲン化炭化水素またはこれらの混合物等を挙げることができる。 In the suspension polymerization method, a Ziegler-Natta catalyst, a chromium catalyst, or a metallocene catalyst can be used as a catalyst. An inert hydrocarbon medium can be used as the medium, and the olefin itself can also be used as the solvent. Specific examples of the inert hydrocarbon medium include aliphatic hydrocarbons such as isobutane, pentane, isopentane, hexane, heptane, octane, decane, dodecane, and kerosene; alicyclic rings such as cyclopentane, cyclohexane, and methylcyclopentane. Aromatic hydrocarbons such as benzene, toluene and xylene; halogenated hydrocarbons such as ethyl chloride, chlorobenzene and dichloromethane, or mixtures thereof.
（ａ）成分の超高分子量ポリエチレンパウダーを製造するための重合温度には、特に制限はないが、分子量の制御と生産性の観点から、通常、４０℃以上が好ましく、より好ましくは５０℃以上、さらに好ましくは６０℃以上であり、且つ１５０℃以下が好ましく、より好ましくは１００℃以下の範囲である。
また、重合圧力は、通常、常圧〜１０ＭＰａが好ましく、より好ましくは０．２〜５ＭＰａ、さらに好ましくは０．５〜３ＭＰａである。また、重合反応は、バッチ式、半連続式、連続式のいずれの方法においても行なうことができる。
Although there is no restriction | limiting in particular in the polymerization temperature for manufacturing the ultra high molecular weight polyethylene powder of (a) component, Usually, 40 degreeC or more is preferable from a viewpoint of control of molecular weight and productivity, More preferably, it is 50 degreeC or more. More preferably, the temperature is 60 ° C. or higher and 150 ° C. or lower, more preferably 100 ° C. or lower.
The polymerization pressure is usually preferably from normal pressure to 10 MPa, more preferably from 0.2 to 5 MPa, and even more preferably from 0.5 to 3 MPa. The polymerization reaction can be carried out in any of batch, semi-continuous and continuous methods.
また、重合を反応条件の異なる２段以上に分けて行なうことも可能である。さらに、例えば、***国特許出願公開第３１２７１３３号明細書に記載されているように、得られるオレフィン重合体の分子量は、重合系に水素を存在させるか、あるいは重合温度を変化させることによって調節することもできる。 It is also possible to carry out the polymerization in two or more stages having different reaction conditions. Furthermore, as described in, for example, West German Patent Publication No. 3127133, the molecular weight of the resulting olefin polymer is adjusted by the presence of hydrogen in the polymerization system or by changing the polymerization temperature. You can also.
なお、（ａ）成分の超高分子量ポリエチレンパウダーの製造においては、上記のような成分以外にも、例えば、リン系化合物やヒンダードフェノール系化合物などの酸化防止剤、ステアリン酸カルシウムに代表される脂肪族金属塩などの安定剤やスケール発生抑制剤や紫外線吸収剤などの当該製造に有用な添加成分を用いることができる。 In the production of the ultra high molecular weight polyethylene powder of component (a), in addition to the above components, for example, antioxidants such as phosphorus compounds and hindered phenol compounds, fats represented by calcium stearate, etc. Additive components useful for the production such as stabilizers such as group metal salts, scale generation inhibitors and ultraviolet absorbers can be used.
このようにして得られた、所定範囲内の粘度平均分子量、密度及び平均粒径を有する超高分子量ポリエチレンパウダーは、耐摩耗性や強度に優れていることから、当該パウダーが配合された塗膜は高強度と高弾性を併せ持ち、優れた耐傷性や耐チッピング性を発現することが可能となる。 The ultra-high molecular weight polyethylene powder having viscosity average molecular weight, density and average particle size within the predetermined range thus obtained is excellent in wear resistance and strength, and thus a coating film in which the powder is blended. Has both high strength and high elasticity, and can exhibit excellent scratch resistance and chipping resistance.
（ａ）成分の超高分子量ポリエチレンパウダーの形状について、特に制限はない。真球状でも不定形でもよく、一次粒子からなるものでも、一次粒子が複数個凝集し一体化した二次粒子でも、二次粒子がさらに凝集した形状でも構わない。 There is no restriction | limiting in particular about the shape of the ultra high molecular weight polyethylene powder of (a) component. It may be spherical or indeterminate, and may be composed of primary particles, secondary particles in which a plurality of primary particles are aggregated and integrated, or a shape in which secondary particles are further aggregated.
（ａ）成分の超高分子量ポリエチレンパウダーは、重合後のパウダーをそのまま使用しても良いし、ペレット状などの成形体を粉砕して使用しても良い。また、重合後のパウダーを良溶媒に溶解させた後、貧溶媒に滴下して析出させることにより得られたパウダーを使用しても良いし、良溶媒に加温下で溶解させた後、冷却して析出させることにより得られたパウダーを使用しても良い。 As the ultra high molecular weight polyethylene powder of component (a), the powder after polymerization may be used as it is, or a molded product such as a pellet may be pulverized. In addition, after dissolving the polymerized powder in a good solvent, the powder obtained by dropping it into a poor solvent and precipitating it may be used. Then, powder obtained by precipitation may be used.
（ａ）成分の超高分子量ポリエチレンパウダーは、外観の良化や塗料液だれの防止性の観点から、粒径２００μｍ以上のパウダーが、（ａ）成分全体を１００質量％として、５質量％以下であることが好ましく、３質量％以下であることがさらに好ましく、１質量％以下であることが特に好ましい。ここで、粒径２００μｍ以上のパウダーは、目開き２００μｍのスクリーンメッシュにて分級することができる。 The ultra high molecular weight polyethylene powder of component (a) has a particle size of 200 μm or more from the viewpoint of improving the appearance and preventing the coating liquid from dripping. Is preferably 3% by mass or less, and particularly preferably 1% by mass or less. Here, powder having a particle size of 200 μm or more can be classified with a screen mesh having an opening of 200 μm.
（ａ）成分の超高分子量ポリエチレンパウダーの粒径制御の観点から、特定の目開きのスクリーンメッシュにより篩分しても良い。本発明においては、形成される塗膜の外観や平滑性の観点から、特にＪＩＳ Ｚ８８０１規格に準拠した標準ふるいのうち、目開きが４２５μｍのスクリーンメッシュを通過させた超高分子量ポリエチレンパウダーを使用することが好ましい。また、超高分子量ポリエチレンパウダーの平均粒径を細かくする観点から、目開きがＪＩＳ Ｚ８８０１規格において、３００μｍ、２５０μｍ、２１２μｍで篩分することが好ましい。さらには、超高分子量ポリエチレンパウダーの粒度をより小さくする観点から、１８０μｍ、１６２μｍ、１５０μｍ、１２５μｍ、１０６μｍ、９０μｍ、７５μｍ、６３μｍ、５３μｍ、４５μｍ、３８μｍのスクリーンメッシュを選定して使用することができる。 From the viewpoint of controlling the particle size of the ultrahigh molecular weight polyethylene powder (a), it may be sieved with a screen mesh having a specific opening. In the present invention, from the viewpoints of the appearance and smoothness of the coating film to be formed, among ultra-high molecular weight polyethylene powders that are passed through a screen mesh having a mesh size of 425 μm, among standard sieves conforming to JIS Z8801 standard. It is preferable. Further, from the viewpoint of reducing the average particle diameter of the ultrahigh molecular weight polyethylene powder, it is preferable that the mesh be sieved at 300 μm, 250 μm, and 212 μm in the JIS Z8801 standard. Furthermore, from the viewpoint of reducing the particle size of the ultra high molecular weight polyethylene powder, screen meshes of 180 μm, 162 μm, 150 μm, 125 μm, 106 μm, 90 μm, 75 μm, 63 μm, 53 μm, 45 μm, and 38 μm can be selected and used. .
本発明の塗料には、塗料の用途に応じて得られる塗膜物性を改良したり、被塗装物への密着性をさらに改善させるために、（ｂ）成分として熱硬化性樹脂を配合することができる。（ｂ）成分の熱硬化性樹脂は、加熱により重合もしくは架橋し、常温で固化する性質を有するものである。 In the paint of the present invention, a thermosetting resin is blended as the component (b) in order to improve the physical properties of the coating film obtained according to the use of the paint or to further improve the adhesion to the object to be coated. Can do. The thermosetting resin (b) has a property of being polymerized or crosslinked by heating and solidifying at room temperature.
（ｂ）成分の熱可塑性樹脂の例としては、特に制限はないが、エポキシ樹脂、アクリル樹脂、メラミン樹脂、ポリエステル樹脂、フェノール樹脂、ウレタン樹脂、シリコーン樹脂などが挙げられる。また、（ｂ）成分の熱可塑性樹脂は、エポキシ樹脂、アクリル樹脂、メラミン樹脂、ポリエステル樹脂、フェノール樹脂、及びシリコーン樹脂から選択することができる。本発明の塗料は、ウレタン樹脂を含んでもよいし、含まなくてもよい。エポキシ樹脂としては、例えば、ビスフェノールＡ型エポキシ樹脂、オルソクレゾールノボラック型エポキシ樹脂等が含まれる。アクリル樹脂としては、例えば、ポリメチルアクリレート、ポリエチルアクリレート等が含まれる。ポリエステル樹脂としては、例えば、ポリエチレンテレフタレート、ポリブチレンテレフタレート等が含まれる。ウレタン樹脂としては、例えば、エチレングリコール系ポリウレタン、プロピレングリコール系ポリウレタン等が含まれる。フェノール樹脂としては、例えば、ノボラック樹脂等が含まれる。
本発明の塗料において、これらの熱硬化性樹脂はそれぞれ単独で使用しても良いし、これらの中から選ばれる複数を併用しても良い。
Examples of the thermoplastic resin as the component (b) are not particularly limited, and examples thereof include an epoxy resin, an acrylic resin, a melamine resin, a polyester resin, a phenol resin, a urethane resin, and a silicone resin. Moreover, the thermoplastic resin of (b) component can be selected from an epoxy resin, an acrylic resin, a melamine resin, a polyester resin, a phenol resin, and a silicone resin. The paint of the present invention may or may not contain a urethane resin. Examples of the epoxy resin include bisphenol A type epoxy resin and orthocresol novolac type epoxy resin. Examples of the acrylic resin include polymethyl acrylate and polyethyl acrylate. Examples of the polyester resin include polyethylene terephthalate and polybutylene terephthalate. Examples of the urethane resin include ethylene glycol polyurethane and propylene glycol polyurethane. Examples of the phenol resin include novolac resin.
In the coating material of the present invention, these thermosetting resins may be used alone, or a plurality selected from these may be used in combination.
本発明の塗料における（ａ）成分と（ｂ）成分の質量比率は、（ａ）／（ｂ）＝９９．９９／０．０１〜０．１／９９．９であることが好ましく、（ａ）／（ｂ）＝９０／１０〜１／９９であることがより好ましい。このような割合で塗料に（ｂ）成分を添加することにより、より平滑で強固な塗膜を形成させることが可能となる。 The mass ratio of the component (a) and the component (b) in the paint of the present invention is preferably (a) / (b) = 99.99 / 0.01 to 0.1 / 99.9, ) / (B) = 90/10/1/99 is more preferable. By adding the component (b) to the paint at such a ratio, it becomes possible to form a smoother and stronger coating film.
また、本発明の塗料においては、塗料の用途に応じて、（ｃ）成分として溶媒を配合して溶液状、またはスラリー状塗料として使用することができる。本発明の塗料は、上記の超高分子量ポリエチレン（及び任意の他の成分）を（ｃ）成分の溶媒に溶解ないし分散させて使用することができる。（ｃ）成分の溶媒は、主に、基材上に塗膜を形成させる際に、塗膜の平滑性を向上させたり、塗工性を良好にするために使用されるものである。 Moreover, in the coating material of this invention, according to the use of a coating material, a solvent can be mix | blended as (c) component and it can be used as a solution form or a slurry-like coating material. The coating material of the present invention can be used by dissolving or dispersing the ultra high molecular weight polyethylene (and any other component) in the solvent of component (c). The solvent of the component (c) is mainly used for improving the smoothness of the coating film or improving the coating property when the coating film is formed on the substrate.
（ｃ）成分の溶媒の好適な例としては、脂肪族炭化水素、芳香族炭化水素、エステル、ケトン、アルコール、水などが挙げられる。例えば、ヘキサン、オクタン、ベンゼン、トルエン、キシレン、エチルベンゼン、シクロヘキサン、メチルシクロヘキサン等の脂肪族又は芳香族炭化水素、酢酸メチル、酢酸エチル、酢酸ブチル、エチレングリコールモノエチルアセテートなどのエステル、アセトン、メチルエチルケトン、メチルイソブチルケトン、メチルアミルケトン、シクロヘキサノンなどのケトン、メタノール、エタノール、ノルマルプロパノール、イソプロパノール、ノルマルブタノール、イソブタノール、ターシャリーブタノール、ペンタノール、エチレングリコールモノエチルエーテル、エチレングリコールモノブチルエーテルなどのアルコール、水などが挙げられる。
本発明の塗料において、これらの溶媒はそれぞれ単独で使用しても良いし、これらの中から選ばれる複数を併用しても良い。
Preferable examples of the component (c) solvent include aliphatic hydrocarbons, aromatic hydrocarbons, esters, ketones, alcohols, water, and the like. For example, aliphatic or aromatic hydrocarbons such as hexane, octane, benzene, toluene, xylene, ethylbenzene, cyclohexane, methylcyclohexane, esters such as methyl acetate, ethyl acetate, butyl acetate, ethylene glycol monoethyl acetate, acetone, methyl ethyl ketone, Ketones such as methyl isobutyl ketone, methyl amyl ketone and cyclohexanone, alcohols such as methanol, ethanol, normal propanol, isopropanol, normal butanol, isobutanol, tertiary butanol, pentanol, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, water Etc.
In the coating material of the present invention, these solvents may be used alone, or a plurality selected from these may be used in combination.
本発明の塗料では、溶媒として水を使用する場合には、界面活性剤を適当量添加し、ホモジナイザー等で強制攪拌してエマルジョンとして使用することもできる。その際に使用される界面活性剤としては、アニオン系界面活性剤、カチオン系界面活性剤、ノニオン系界面活性剤などの各種の公知の界面活性剤を使用することができる。 In the coating material of the present invention, when water is used as a solvent, an appropriate amount of a surfactant can be added, and it can be used as an emulsion by forcibly stirring with a homogenizer or the like. As the surfactant used in that case, various known surfactants such as an anionic surfactant, a cationic surfactant, and a nonionic surfactant can be used.
さらに本発明の塗料には、得られる塗膜の特性を損なわない範囲で各種添加剤を配合することができる。添加剤には、加工性改良剤、酸化防止剤、紫外線吸収剤、帯電防止剤、充填剤、難燃剤、滑剤、防カビ剤、防汚剤、着色剤などが含まれる。 Furthermore, various additives can be mix | blended with the coating material of this invention in the range which does not impair the characteristic of the coating film obtained. Additives include processability improvers, antioxidants, ultraviolet absorbers, antistatic agents, fillers, flame retardants, lubricants, fungicides, antifouling agents, colorants and the like.
加工性改良剤は、オレフィン系樹脂に配合することにより、柔軟性等を付与し加工性を改良する効果を有する物質であれば、特に限定されない。加工性改良剤の例には、低分子量ポリエチレン、低分子量ポリプロピレン等が含まれる。 The processability improver is not particularly limited as long as it is a substance having an effect of imparting flexibility or the like and improving processability by being blended with the olefin resin. Examples of the processability improver include low molecular weight polyethylene and low molecular weight polypropylene.
酸化防止剤は、オレフィン系樹脂の加熱時において酸化を抑制する効果を有する物質であれば、特に限定されない。酸化防止剤の例には、フェノール系酸化防止剤、スルフィド系酸化防止剤、ホスファイト系酸化防止剤等が含まれる。フェノール系酸化防止剤としては、２，６−ジ−ｔ−ブチル−４−メチルフェノール等が挙げられる。スルフィド系酸化防止剤としては、ジラウリルチオジプロピオネート等が挙げられる。ホスファイト系酸化防止剤としては、トリスノニルフェニルホスファイト等が挙げられる。 An antioxidant will not be specifically limited if it is a substance which has the effect which suppresses oxidation at the time of the heating of olefin resin. Examples of antioxidants include phenolic antioxidants, sulfide antioxidants, phosphite antioxidants, and the like. Examples of phenolic antioxidants include 2,6-di-t-butyl-4-methylphenol. Examples of the sulfide-based antioxidant include dilauryl thiodipropionate. Examples of the phosphite antioxidant include trisnonylphenyl phosphite.
紫外線吸収剤は、オレフィン系樹脂に有害な波長領域の紫外線を吸収する物質であれば、特に限定されない。紫外線吸収剤の例には、ベンゾフェノン系紫外線吸収剤、ベンゾトリアゾール系紫外線吸収剤、シアノアクリレート系紫外線吸収剤等が含まれる。ベンゾフェノン系紫外線吸収剤としては、２−ヒドロキシ−４−オクトキシベンゾフェノン等が挙げられる。ベンゾトリアゾール系紫外線吸収剤としては、２−（２’−ヒドロキシ−５’−メチルフェニル）ベンゾトリアゾール等が挙げられる。シアノアクリレート系紫外線吸収剤としては、２−エチルヘキシル−２−シアノ−３、３’−ジフェニルアクリレート等が挙げられる。 The ultraviolet absorber is not particularly limited as long as it is a substance that absorbs ultraviolet rays in a wavelength region harmful to the olefin resin. Examples of ultraviolet absorbers include benzophenone ultraviolet absorbers, benzotriazole ultraviolet absorbers, cyanoacrylate ultraviolet absorbers, and the like. Examples of the benzophenone ultraviolet absorber include 2-hydroxy-4-octoxybenzophenone. Examples of the benzotriazole ultraviolet absorber include 2- (2'-hydroxy-5'-methylphenyl) benzotriazole. Examples of the cyanoacrylate ultraviolet absorber include 2-ethylhexyl-2-cyano-3, 3'-diphenylacrylate.
帯電防止剤は、静電気の発生による障害を防ぐ物質であれば、特に限定されない。帯電防止剤の例には、非イオン系帯電防止剤、アニオン系帯電防止剤、カチオン系帯電防止剤等が含まれる。非イオン系帯電防止剤としては、ポリ（オキシエチレン）アルキルアミン等が挙げられる。アニオン系帯電防止剤としては、アルキルスルホネート等が挙げられる。カチオン系帯電防止剤としては、第４級アンモニウムサルフェート等が挙げられる。 The antistatic agent is not particularly limited as long as it is a substance that prevents damage due to generation of static electricity. Examples of the antistatic agent include a nonionic antistatic agent, an anionic antistatic agent, and a cationic antistatic agent. Examples of nonionic antistatic agents include poly (oxyethylene) alkylamines. Examples of the anionic antistatic agent include alkyl sulfonate. Examples of the cationic antistatic agent include quaternary ammonium sulfate.
充填剤の例には、炭酸カルシウム、タルク、マイカ、シリカ、カオリン等が含まれる。 Examples of the filler include calcium carbonate, talc, mica, silica, kaolin and the like.
難燃剤は、オレフィン系樹脂に配合することにより燃焼を抑制する効果がある物質であれば、特に限定されない。難燃剤の例には、三酸化アンチモン、三酸化モリブデン、ほう酸亜鉛、水酸化アルミニウム、水酸化マグネシウム、ホスフィン酸アルミニウム等が含まれる。 A flame retardant will not be specifically limited if it is a substance which has the effect which suppresses combustion by mix | blending with an olefin resin. Examples of the flame retardant include antimony trioxide, molybdenum trioxide, zinc borate, aluminum hydroxide, magnesium hydroxide, aluminum phosphinate and the like.
滑剤の例には、高級脂肪酸系滑剤、脂肪酸アマイド系滑剤、金属石鹸系滑剤、脂肪酸エステル系滑剤等が含まれる。 Examples of the lubricant include higher fatty acid lubricants, fatty acid amide lubricants, metal soap lubricants, fatty acid ester lubricants, and the like.
防カビ剤は、オレフィン系樹脂へのカビの増殖を防ぐ物質であれば、特に限定されない。防カビ剤の例には、１０，１０’−オキシビスフェノキシアルシン、Ｎ−（フルオロジクロロメチルチオ）フタルイミド等が含まれる。 The fungicide is not particularly limited as long as it is a substance that prevents the growth of mold on the olefin resin. Examples of the fungicide include 10,10'-oxybisphenoxyarsine, N- (fluorodichloromethylthio) phthalimide and the like.
防汚剤の例には、無機化合物、金属を含む有機化合物及び金属を含まない有機化合物が含まれる。無機化合物としては、例えば、亜酸化銅、銅粉、チオシアン酸銅、炭酸銅、塩化銅、硫酸銅等の銅化合物、硫酸亜鉛、酸化亜鉛、硫酸ニッケル、銅−ニッケル合金等が挙げられる。金属を含む有機化合物としては、例えば、有機銅系化合物、有機ニッケル系化合物及び有機亜鉛系化合物等が挙げられ、その他マンネブ、マンセブ、プロピネブ等も用いることができる。有機銅系化合物としては、オキシン銅、銅ピリチオン、ノニルフェノールスルホン酸銅、カッパービス（エチレンジアミン）−ビス（ドデシルベンゼンスルホネート）、酢酸銅、ナフテン酸銅、ビス（ペンタクロロフェノール酸）銅等が挙げられる。有機ニッケル系化合物としては、酢酸ニッケル、ジメチルジチオカルバミン酸ニッケル等が挙げられる。有機亜鉛系化合物としては、酢酸亜鉛、カルバミン酸亜鉛、ジメチルジチオカルバミン酸亜鉛、ジンクピリチオン、エチレンビスジチオカルバミン酸亜鉛等が挙げられる。金属を含まない有機化合物としては、例えば、Ｎ−トリハロメチルチオフタルイミド、ジチオカルバミン酸、Ｎ−アリールマレイミド、３−置換化アミノ−１，３−チアゾリジン−２，４−ジオン、ジチオシアノ系化合物、トリアジン系化合物等が挙げられる。 Examples of the antifouling agent include an inorganic compound, an organic compound containing a metal, and an organic compound not containing a metal. Examples of the inorganic compound include copper compounds such as cuprous oxide, copper powder, copper thiocyanate, copper carbonate, copper chloride, and copper sulfate, zinc sulfate, zinc oxide, nickel sulfate, and a copper-nickel alloy. As an organic compound containing a metal, an organic copper type compound, an organic nickel type compound, an organic zinc type compound, etc. are mentioned, for example, Manneb, Manceb, propineb, etc. can also be used. Examples of the organic copper-based compounds include copper oxine, copper pyrithione, copper nonylphenol sulfonate, copper bis (ethylenediamine) -bis (dodecylbenzenesulfonate), copper acetate, copper naphthenate, copper bis (pentachlorophenolate), and the like. . Examples of the organic nickel compound include nickel acetate and nickel dimethyldithiocarbamate. Examples of the organic zinc compound include zinc acetate, zinc carbamate, zinc dimethyldithiocarbamate, zinc pyrithione, and zinc ethylenebisdithiocarbamate. Examples of the organic compound not containing metal include N-trihalomethylthiophthalimide, dithiocarbamic acid, N-arylmaleimide, 3-substituted amino-1,3-thiazolidine-2,4-dione, dithiocyano compound, and triazine compound. Etc.
着色剤としては、典型的には、無機顔料もしくは有機顔料および分散剤からなるものが用いられる。無機顔料としては、二酸化チタン、チタンブラック等が挙げられる。有機顔料としては、フタロシアニンブルー、ジオキサジンバイオレット等が挙げられる。分散剤としては、低分子量ポリエチレン等が挙げられる。 As the colorant, typically, an inorganic pigment or an organic pigment and a dispersant are used. Examples of inorganic pigments include titanium dioxide and titanium black. Examples of the organic pigment include phthalocyanine blue and dioxazine violet. Examples of the dispersant include low molecular weight polyethylene.
また、従来の塗料に、上述した所定の特性を満足する超高分子量ポリエチレンを添加することによって形成される塗料によっても、本発明が目的とする所望の効果が得られる。 Moreover, the desired effect which this invention aimed at is acquired also by the coating material formed by adding the ultra high molecular weight polyethylene which satisfies the predetermined characteristic mentioned above to the conventional coating material.
本発明の塗料の基材へのコーティングは、公知のコーティング方法で行うことが可能である。例えば、ロールコーター、カーテンロールコーター、カーテンフローコーター、ダイコーター、ナイフコーター、スプレー、グラビアオフセット等を用いるコーティング方法、または、浸漬燃焼ジェット中に樹脂のコーティング粒子を供給してバレル内を通過させ、燃焼ジェットと共にコーティング粒子を噴出させるＨＶＯＦ溶射等によるコーティング方法等でコーティングすることが可能である。 The coating of the paint of the present invention on the substrate can be performed by a known coating method. For example, a coating method using a roll coater, a curtain roll coater, a curtain flow coater, a die coater, a knife coater, a spray, a gravure offset, or the like, or a coating particle of resin is supplied into an immersion combustion jet and passed through a barrel, Coating can be performed by a coating method such as HVOF spraying in which coating particles are ejected together with a combustion jet.
本発明の塗料は、特に限定されないが、金属、表面処理された金属、セラミック、コンクリート、木材などの基材、例えば、自動車内装部、外装部、電気・電子製品の表面等に適用することができる。ここで金属の表面処理としては、金属表面に、Ｚｎ、Ｎｉ、Ｃｒ、Ａｌ、Ｃｕ、Ｓｎ単独あるいはこれらの金属を含む合金メッキ、複合メッキ、あるいはクロム酸処理、リン酸処理などの化成処理や、塗布型の化成処理を施してもよい。また、これらの表面処理を組み合わせて用いてもよい。
基材は、密着性改良の観点から、公知の方法で、火炎処理、コロナ処理、プラズマ処理してもよい。
The paint of the present invention is not particularly limited, but can be applied to substrates such as metals, surface-treated metals, ceramics, concrete, and wood, such as automobile interior parts, exterior parts, and surfaces of electrical and electronic products. it can. Here, as the metal surface treatment, Zn, Ni, Cr, Al, Cu, Sn alone or alloy plating containing these metals, composite plating, or chemical conversion treatment such as chromic acid treatment, phosphoric acid treatment, etc. Alternatively, a coating type chemical conversion treatment may be performed. Moreover, you may use combining these surface treatments.
The base material may be flame-treated, corona-treated, or plasma-treated by a known method from the viewpoint of improving adhesion.
なお、本発明の塗料から形成される塗膜の動摩擦係数は、耐傷性の一層の向上の観点から、０．２５以下であることが好ましく、０．２４以下であることがより好ましく、０．２３以下であることがさらに好ましく、０．２２以下であることが特に好ましく、０．２１以下であることが最も好ましい。 The dynamic friction coefficient of the coating film formed from the paint of the present invention is preferably 0.25 or less, more preferably 0.24 or less, from the viewpoint of further improving scratch resistance. It is more preferably 23 or less, particularly preferably 0.22 or less, and most preferably 0.21 or less.
次に、実施例および比較例によって本発明を説明するが、本発明はこれら実施例に限定されるものではない。
まず、パウダーの物性、及び塗料から形成される塗膜の性能の評価方法について説明する。
Next, although an example and a comparative example explain the present invention, the present invention is not limited to these examples.
First, the physical property of powder and the evaluation method of the performance of the coating film formed from a coating material are demonstrated.
［パウダーの粘度平均分子量の測定方法］
１）ポリマーのパウダー１０ｍｇを秤量し、試験管に投入した。
２）試験管に２０ミリリットルのデカリン（デカヒドロナフタレン）を投入した。
３）１５０℃で２時間攪拌してポリマーを溶解させた。
４）その溶液を１３５℃の恒温槽で、ウベローデタイプの粘度計を用いて、標線間の落下時間（ｔｓ）を測定した。
５）同様に、ポリマー５ｍｇの場合についても標線間の落下時間（ｔｓ）を測定した。
６）ブランクとしてポリマーを入れていない、デカリンのみの落下時間（ｔｂ）を測定した。
７）以下の式に従って求めたポリマーの比粘度（ηｓｐ／Ｃ）をそれぞれプロットして濃度（Ｃ）とポリマーの比粘度（ηｓｐ／Ｃ）の直線式を導き、濃度０に外挿した極限粘度（η）を求めた。
ηｓｐ／Ｃ＝（ｔｓ／ｔｂ−１）／０．１
８）この極限粘度（η）から以下の式に従い、粘度平均分子量（Ｍｖ）を求めた。
Ｍｖ＝５．３４×１０４η１．４９
[Method for measuring viscosity average molecular weight of powder]
1) 10 mg of polymer powder was weighed and put into a test tube.
2) 20 ml of decalin (decahydronaphthalene) was added to the test tube.
3) The polymer was dissolved by stirring at 150 ° C. for 2 hours.
4) The dropping time (ts) between the marked lines was measured using a Ubbelohde type viscometer in a constant temperature bath of 135 ° C.
5) Similarly, the drop time (ts) between the marked lines was measured in the case of 5 mg of polymer.
6) The fall time (tb) of only decalin without a polymer as a blank was measured.
7) The intrinsic viscosity (ηsp / C) of the polymer determined according to the following formula is plotted to derive a linear expression of the concentration (C) and the specific viscosity of the polymer (ηsp / C), and the intrinsic viscosity extrapolated to a concentration of 0. (Η) was determined.
ηsp / C = (ts / tb−1) /0.1
8) The viscosity average molecular weight (Mv) was determined from the intrinsic viscosity (η) according to the following formula.
Mv = 5.34 × 10 4 η 1.49
［パウダーの密度測定方法]
１）超高分子量ポリエチレンパウダー１８０ｇを２００ｍｍ×２００ｍｍ×厚み４ｍｍの金型に投入した。
２）設定温度２００℃のプレス機で、１０ｋｇ／ｃｍ２で５分間予熱し、３回脱泡操作を行い、１５０ｋｇ／ｃｍ２で１５分間プレスした。
３）冷却プレスにて金型を室温まで冷却した。
４）得られたプレスシートから、２ｃｍ×２ｃｍ×厚み４ｍｍの切片を切り出した。
５）ＪＩＳ Ｋ７１１２に準拠した密度勾配管を使用して、成形体の密度を測定し、得られた値をパウダーの密度とした。
[Powder density measurement method]
1) 180 g of ultrahigh molecular weight polyethylene powder was put into a 200 mm × 200 mm × 4 mm thick mold.
2) With a press machine at a set temperature of 200 ° C., preheating was performed at 10 kg / cm 2 for 5 minutes, defoaming operation was performed 3 times, and pressing was performed at 150 kg / cm 2 for 15 minutes.
3) The mold was cooled to room temperature with a cooling press.
4) A section of 2 cm × 2 cm × thickness 4 mm was cut out from the obtained press sheet.
5) Using a density gradient tube according to JIS K7112, the density of the molded body was measured, and the obtained value was used as the density of the powder.
［パウダーの平均粒径測定方法]
１）超高分子量ポリエチレンパウダーをＪＩＳ Ｚ８８０１規格に準拠した目開きが３００μｍ、２５０μｍ、１８０μｍ、１５０μｍ、１０６μｍ、７５μｍ、６３μｍ、５３μｍ、３８μｍの標準ふるいにかけて分級した。
２）各分画毎に回収されたパウダー重量を測定した。
３）分級前のパウダー合計重量に対する各分画の重量分率（％）を算出した。
４）粒径が最も大きなパウダー分画の重量分率から順に各分画の重量分率を累積した。
５）最終的には、最も細かいパウダー分画の重量分率を加えると１００重量％となった。
６）縦軸を粒径、横軸を累積重量分率としてプロットした。
７）ポリマー粒径と粒径分画毎の累積重量分率の直線式を導き、累積重量分率５０％に外挿した粒径を平均粒径とした。
[Method for measuring average particle size of powder]
1) The ultra high molecular weight polyethylene powder was classified by passing through standard sieves having openings of 300 μm, 250 μm, 180 μm, 150 μm, 106 μm, 75 μm, 63 μm, 53 μm, and 38 μm according to JIS Z8801 standard.
2) The weight of the powder collected for each fraction was measured.
3) The weight fraction (%) of each fraction with respect to the total powder weight before classification was calculated.
4) The weight fraction of each fraction was accumulated in order from the weight fraction of the powder fraction having the largest particle size.
5) Finally, when the weight fraction of the finest powder fraction was added, it became 100% by weight.
6) Plotted with particle size on the vertical axis and cumulative weight fraction on the horizontal axis.
7) A linear expression of the polymer particle size and the cumulative weight fraction for each particle size fraction was derived, and the particle size extrapolated to a cumulative weight fraction of 50% was taken as the average particle size.
［塗膜の摩擦係数測定]
塗膜表面の摩擦係数測定試験として、摺動試験機の可動テーブルにアルミ板を固定し、直径３ｍｍのＳＵＳボール圧子に１００ｋｇ／ｃｍ２の荷重を負荷して塗膜上に載置した上、可動テーブルを往復移動してボール圧子による動摩擦係数を測定した。
[Measurement of friction coefficient of coating film]
As a friction coefficient measurement test of the coating film surface, an aluminum plate was fixed to a movable table of a sliding tester, and a load of 100 kg / cm 2 was applied to a 3 mm diameter SUS ball indenter and placed on the coating film. The dynamic friction coefficient by the ball indenter was measured by reciprocating the movable table.
［塗膜の耐擦り傷性試験]
段ボール紙に１０ｇ／ｃｍ２の加重をかけて、塗膜上で５ｃｍストロークで５０往復摩擦させた後に、塗装面の傷の付き具合を目視で評価した。評価基準は以下に示す通りである。
○＝傷が見えない。
△＝傷は見えるが、面状に白く見える程ではない。
×＝傷跡が白い面状に見える。
[Abrasion resistance test of coating film]
A weight of 10 g / cm 2 was applied to the corrugated cardboard, and after 50 reciprocating frictions with a 5 cm stroke on the coating film, the degree of scratches on the painted surface was visually evaluated. The evaluation criteria are as shown below.
○ = Scratches are not visible.
Δ = Scratches are visible but not so white as to be planar.
× = The scar appears as a white surface.
［塗膜の耐チッピング性試験]
米国Ｑ−ＰＡＮＥＬ社製、Ｑ−Ｇ−Ｒグラベロメーター（チッピング試験装置）の試片保持台に試験板を設置し、−２０℃下で４ｋｇ／ｃｍ２の圧縮空気により粒度７号の花崗岩砕石５０ｇを塗面に吹き付け、これによる塗膜のキズの発生個数、損傷深度、損傷部の大きさ及び塗膜状態を肉眼あるいは拡大鏡で観察評価する。評価基準は以下の通りである（点数が１．０に近いほど良好）。
１．０：キズ部の平均径が１．０ｍｍ未満で、キズの個数が少ないもの。
１．５：キズ部の平均径が１．０ｍｍ未満で、キズの個数が多いもの。
２．０：キズ部の平均径が１．０ｍｍ以上２ｍｍ未満で、キズの個数が少ないもの。
２．５：キズ部の平均径が１．０ｍｍ以上２ｍｍ未満で、キズの個数が多いもの。
３．０：キズ部の平均径が２ｍｍ以上３ｍｍ未満で、キズの個数が少ないもの。
３．５：キズ部の平均径が２ｍｍ以上３ｍｍ未満で、キズの個数が多いもの。
４．０：キズ部の平均径が３ｍｍ以上で、キズの個数が多いもの。
[Test of chipping resistance of coating film]
No. 7 granite with 4kg / cm 2 compressed air at −20 ° C. with a test plate installed on the specimen holder of Q-G-R gravelometer (chipping test device) manufactured by Q-PANEL, USA 50 g of crushed stone is sprayed onto the coating surface, and the number of scratches on the coating film, the depth of damage, the size of the damaged portion, and the coating film state are observed and evaluated with the naked eye or a magnifier. The evaluation criteria are as follows (the closer the score is to 1.0, the better).
1.0: The average diameter of the scratched part is less than 1.0 mm and the number of scratches is small.
1.5: The average diameter of the scratched part is less than 1.0 mm, and the number of scratches is large.
2.0: The average diameter of the scratched part is 1.0 mm or more and less than 2 mm, and the number of scratches is small.
2.5: An average diameter of scratches of 1.0 mm or more and less than 2 mm and a large number of scratches.
3.0: The average diameter of the scratched part is 2 mm or more and less than 3 mm, and the number of scratches is small.
3.5: The average diameter of the scratched part is 2 mm or more and less than 3 mm, and the number of scratches is large.
4.0: An average diameter of scratches is 3 mm or more, and the number of scratches is large.
［塗膜の耐食性試験]
塗膜に対してＪＳＫ−５４００ソルトスプレー試験を行った。試験は１０００時間行った。評価基準は以下の通りである。
○：サビ、ハガレ（１ｍｍ以下）で良好。
△：サビ、ハガレ（１ｍｍ以上５ｍｍ未満）で劣る。
×：サビ、ハガレ（５ｍｍ以上）で著しく劣る。
[Corrosion resistance test of coating film]
A JSK-5400 salt spray test was performed on the coating film. The test was conducted for 1000 hours. The evaluation criteria are as follows.
○: Good for rust and peeling (1 mm or less).
Δ: Inferior in rust and peeling (1 mm or more and less than 5 mm).
X: It is remarkably inferior in rust and peeling (5 mm or more).
１．粉体塗料の例
［実施例１］
エポキシ樹脂（エピコート１００４、三菱化学社製）１００質量部、超高分子量ポリエチレンパウダー（粘度平均分子量４００万、密度９３０ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体を１００質量％として０．５質量％）１０質量部、硬化剤（アジピン酸ジヒドラジド、和光純薬社製）４質量部、体質顔料（硫酸バリウム、和光純薬社製）２０質量部、着色顔料（二酸化チタン、和光純薬社製）３質量部、硬化促進剤（キュアゾールＣ−１１Ｚ、四国化成社製）０．２質量部、表面調整剤１質量部（アクロナール４Ｆ、ＢＡＳＦ社製）の諸成分に対して、室温での混合、溶融混練、粉砕、分級処理を行い、平均粒径５０μｍの粉体塗料を調製した。次に得られた粉体塗料を、電気炉にて物温２００℃に加熱した板厚１２．０ｍｍの熱間圧延鋼板（サンドブラスト処理）に静電粉体塗装機を用いて、−６０ＫＶの電圧で膜厚３００〜４００μｍになるように塗装し、１８０℃にて塗装を一次停止した後室温まで放冷し、塗膜を形成させた。塗膜性能の評価結果を表１に示す。
1. Example of powder coating [Example 1]
100 parts by mass of epoxy resin (Epicoat 1004, manufactured by Mitsubishi Chemical Corporation), ultra high molecular weight polyethylene powder (viscosity average molecular weight 4 million, density 930 kg / m 3 , average particle size 30 μm, particle size 200 μm or more represents the entire ultra high molecular weight polyethylene powder. 10 parts by mass (0.5% by mass as 100% by mass), 4 parts by mass of curing agent (adipic acid dihydrazide, manufactured by Wako Pure Chemical Industries, Ltd.), 20 parts by mass of extender pigment (barium sulfate, manufactured by Wako Pure Chemical Industries, Ltd.), colored pigment ( Titanium dioxide, manufactured by Wako Pure Chemical Industries, Ltd.) 3 parts by mass, curing accelerator (Curesol C-11Z, manufactured by Shikoku Kasei Co., Ltd.) 0.2 parts by mass, surface conditioning agent 1 part by mass (Acronal 4F, manufactured by BASF) On the other hand, mixing at room temperature, melt-kneading, pulverization, and classification were performed to prepare a powder coating material having an average particle diameter of 50 μm. Next, using the electrostatic powder coating machine, a voltage of −60 KV was applied to the hot-rolled steel plate (sand blasting) having a thickness of 12.0 mm, which was heated to an object temperature of 200 ° C. in an electric furnace. The film was coated to a film thickness of 300 to 400 μm, and the coating was temporarily stopped at 180 ° C. and then allowed to cool to room temperature to form a coating film. The evaluation results of the coating film performance are shown in Table 1.
［実施例２]
超高分子量ポリエチレンパウダーとして、粘度平均分子量３６０万、密度９２４ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体を１００質量％として０．８質量％のパウダー１０質量部を使用した以外は、実施例１と同様にして粉体塗料を作製し、塗膜を形成させた。塗膜性能の評価結果を表１に示す。
[Example 2]
As ultrahigh molecular weight polyethylene powder, viscosity average molecular weight 3.6 million, density 924 kg / m 3 , average particle size 30 μm, particle size 200 μm or more is 10 mass parts of 0.8 mass% powder with 100 mass% of the entire ultrahigh molecular weight polyethylene powder. A powder coating material was prepared and a coating film was formed in the same manner as in Example 1 except that was used. The evaluation results of the coating film performance are shown in Table 1.
［実施例３］
超高分子量ポリエチレンパウダーとして、粘度平均分子量３６０万、密度９１６ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体を１００質量％として１．１質量％のパウダー１０質量部を使用した以外は、実施例１と同様にして粉体塗料を作製し、塗膜を形成させた。塗膜性能の評価結果を表１に示す。
[Example 3]
As ultra-high molecular weight polyethylene powder, viscosity average molecular weight 3.6 million, density 916 kg / m 3 , average particle size 30 μm, particle size 200 μm or more is 10 mass parts of 1.1 mass% powder with 100 mass% of ultra high molecular weight polyethylene powder as a whole. A powder coating material was prepared and a coating film was formed in the same manner as in Example 1 except that was used. The evaluation results of the coating film performance are shown in Table 1.
［比較例１]
超高分子量ポリエチレンパウダーを添加しない以外は実施例１と同様にして粉体塗料を作製し、塗膜を形成させた。塗膜性能の評価結果を表１に示す。
[Comparative Example 1]
A powder coating was prepared in the same manner as in Example 1 except that no ultrahigh molecular weight polyethylene powder was added, and a coating film was formed. The evaluation results of the coating film performance are shown in Table 1.
［比較例２］
超高分子量ポリエチレンパウダーの代わりに高密度ポリエチレン（粘度平均分子量８万、密度９４５ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が高密度ポリエチレン全体１００質量％として０．７質量％）を添加した以外は実施例１と同様にして粉体塗料を作製し、塗膜を形成させた。塗膜性能の評価結果を表１に示す。
[Comparative Example 2]
High density polyethylene (viscosity average molecular weight 80,000, density 945kg / m 3 , average particle size 30μm, particle size 200μm or more is 0.7% by mass as 100% by mass of high density polyethylene) instead of ultra high molecular weight polyethylene powder A powder coating material was produced in the same manner as in Example 1 except that a coating film was formed. The evaluation results of the coating film performance are shown in Table 1.
［比較例３]
超高分子量ポリエチレンパウダーとして、粘度平均分子量３６０万、密度９１４ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体を１００質量％として１．１質量％のパウダー１０質量部を使用した以外は、実施例１と同様にして粉体塗料を作製し、塗膜を形成させた。塗膜性能の評価結果を表１に示す。
[Comparative Example 3]
As ultra-high molecular weight polyethylene powder, viscosity average molecular weight of 3.6 million, density of 914 kg / m 3 , average particle size of 30 μm, particle size of 200 μm or more is 10% by mass of 1.1% by mass of 100% by mass as a whole. A powder coating material was prepared and a coating film was formed in the same manner as in Example 1 except that was used. The evaluation results of the coating film performance are shown in Table 1.
［実施例４]
エポキシ樹脂（エピコート１００４、三菱化学社製）１００質量部、超高分子量ポリエチレンパウダー（粘度平均分子量４００万、密度９３０ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体１００質量％として０．５質量％）１０質量部、硬化剤（アジピン酸ジヒドラジド、和光純薬社製）４質量部、体質顔料（硫酸バリウム、和光純薬社製）２０質量部、着色顔料（二酸化チタン、和光純薬社製）３質量部、硬化促進剤（キュアゾールＣ−１１Ｚ、四国化成社製）０．２質量部、表面調整剤１質量部（アクロナール４Ｆ、ＢＡＳＦ社製）、溶媒としてキシレン１００質量部の諸成分を、室温にて混合し塗料溶液を調製した。次に得られた塗料溶液に板厚１２．０ｍｍの熱間圧延鋼板（サンドブラスト処理）をディッピングした後、室温で１時間乾燥後、２００℃に設定された送風循環型オーブンで３０分加熱し、その後オーブンから取り出し、室温まで放冷して塗膜を形成させた。膜厚は３００〜４００μｍになるように調整した。塗膜性能の評価結果を表１に示す。
[Example 4]
100 parts by mass of epoxy resin (Epicoat 1004, manufactured by Mitsubishi Chemical Corporation), ultra high molecular weight polyethylene powder (viscosity average molecular weight 4 million, density 930 kg / m 3 , average particle size 30 μm, particle size 200 μm or more is ultra high molecular weight polyethylene powder 100 10 parts by mass as 0.5% by mass), 4 parts by mass of a curing agent (adipic acid dihydrazide, manufactured by Wako Pure Chemical Industries, Ltd.), 20 parts by mass of an extender pigment (barium sulfate, manufactured by Wako Pure Chemical Industries, Ltd.), and a colored pigment (dioxide dioxide) Titanium, manufactured by Wako Pure Chemical Industries, Ltd.) 3 parts by mass, curing accelerator (Curesol C-11Z, manufactured by Shikoku Kasei Co., Ltd.) 0.2 parts by mass, surface conditioning agent 1 part by mass (Acronal 4F, manufactured by BASF), xylene as a solvent 100 parts by mass of various components were mixed at room temperature to prepare a coating solution. Next, after dipping a hot-rolled steel sheet (sandblasting treatment) with a plate thickness of 12.0 mm into the obtained coating solution, after drying at room temperature for 1 hour, it was heated in an air circulation oven set at 200 ° C. for 30 minutes, Thereafter, the film was taken out from the oven and allowed to cool to room temperature to form a coating film. The film thickness was adjusted to be 300 to 400 μm. The evaluation results of the coating film performance are shown in Table 1.
［実施例５］
実施例４で用いた超高分子量ポリエチレンパウダー（粘度平均分子量４００万、密度９３０ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体１００質量％として０．５質量％）９５質量部に、超高分子量ポリエチレンパウダー（粘度平均分子量４００万、密度９３０ｋｇ／ｍ３、平均粒径２５０μｍ）５質量部をブレンドしたものを用いたこと以外は、実施例４と同様に塗膜形成及び性能評価を実施した。ブレンド後の超高分子量ポリエチレンパウダーは、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体１００質量％として４．５質量％であった。塗膜性能の評価結果を表１に示す。
[Example 5]
Ultra high molecular weight polyethylene powder used in Example 4 (viscosity average molecular weight 4 million, density 930 kg / m 3 , average particle size 30 μm, particle size 200 μm or more is 0.5% by mass as 100% by mass of the total ultra high molecular weight polyethylene powder) The coating film was the same as in Example 4 except that 95 parts by mass was blended with 5 parts by mass of ultrahigh molecular weight polyethylene powder (viscosity average molecular weight 4 million, density 930 kg / m 3 , average particle size 250 μm). Formation and performance evaluation were performed. The ultrahigh molecular weight polyethylene powder after blending had a particle size of 200 μm or more, and the total amount of the ultrahigh molecular weight polyethylene powder was 4.5% by mass as 100% by mass. The evaluation results of the coating film performance are shown in Table 1.
［比較例４]
超高分子量ポリエチレンパウダーを添加しない以外は実施例４と同様にして粉体塗料を作製し、塗膜を形成させた。塗膜性能の評価結果を表１に示す。
[Comparative Example 4]
A powder coating material was prepared in the same manner as in Example 4 except that no ultrahigh molecular weight polyethylene powder was added, and a coating film was formed. The evaluation results of the coating film performance are shown in Table 1.
２．スラリー塗料の例
［実施例６]
カチオン電着塗料シントーサクセード＃８０Ｖ−１５（神東塗料株式会社製）１００質量部に、四フッ化エチレン樹脂（住友スリーエム株式会社ダイニオンＴＦ９２０７）０．２質量部、超高分子量ポリエチレンパウダー（粘度平均分子量４００万、密度９３０ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体１００質量％として０．５質量％）０．２質量部を添加し、厚さ９μｍの陽極酸化皮膜を形成したＪＩＳ６０６３Ｔ５アルミ板（６×１２ｃｍ）に電圧２００Ｖで電着塗装を施し、厚さ６０μｍの電着塗膜を形成させた。塗膜性能の評価結果を表２に示す。
2. Example of slurry paint [Example 6]
Cationic electrodeposition paint Shinto saxade # 80V-15 (manufactured by Shinto Paint Co., Ltd.), 100 parts by mass, tetrafluoroethylene resin (Sumitomo 3M, Dinion TF9207), 0.2 parts by mass, ultrahigh molecular weight polyethylene powder (viscosity) 0.2 part by mass of an average molecular weight of 4 million, a density of 930 kg / m 3 , an average particle size of 30 μm, and a particle size of 200 μm or more is 0.5% by mass as 100% by mass of the total ultra-high molecular weight polyethylene powder. JIS6063T5 aluminum plate (6 × 12 cm) on which an anodized film was formed was subjected to electrodeposition coating at a voltage of 200 V to form an electrodeposition coating film having a thickness of 60 μm. The evaluation results of the coating film performance are shown in Table 2.
［比較例５］
超高分子量ポリエチレンパウダーの代わりにポリエチレンワックス粒子（粘度平均分子量１万、密度９５０ｋｇ／ｍ３、平均粒径１０μｍ、粒径２００μｍ以上がポリエチレンワックス粒子全体を１００質量％として０．２質量％）０．２質量部を添加した以外は、実施例６と同様にして電着塗装を施し、厚さ６０μｍの電着塗膜を形成させた。塗膜性能の評価結果を表２に示す。
[Comparative Example 5]
Polyethylene wax particles instead of ultra high molecular weight polyethylene powder (viscosity average molecular weight 10,000, density 950 kg / m 3 , average particle size 10 μm, particle size 200 μm or more is 0.2% by mass with respect to 100% by mass of the entire polyethylene wax particles) 0 Electrodeposition coating was performed in the same manner as in Example 6 except that 2 parts by mass was added, and an electrodeposition coating film having a thickness of 60 μm was formed. The evaluation results of the coating film performance are shown in Table 2.
［実施例７]
超高分子量ポリエチレンパウダーとして、粘度平均分子量３６０万、密度９１６ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体を１００質量％として１．１質量％のパウダー０．２質量部を添加した以外は、実施例６と同様にして電着塗装を施し、厚さ６０μｍの電着塗膜を形成させた。塗膜性能の評価結果を表２に示す。
[Example 7]
The ultrahigh molecular weight polyethylene powder has a viscosity average molecular weight of 3,600,000, a density of 916 kg / m 3 , an average particle size of 30 μm, and a particle size of 200 μm or more. An electrodeposition coating was applied in the same manner as in Example 6 except that a part by mass was added to form an electrodeposition coating film having a thickness of 60 μm. The evaluation results of the coating film performance are shown in Table 2.
［比較例６]
超高分子量ポリエチレンパウダーとして、粘度平均分子量３６０万、密度９１４ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体を１００質量％として１．１質量％のパウダー０．２質量部を添加した以外は、実施例６と同様にして電着塗装を施し、厚さ６０μｍの電着塗膜を形成させた。塗膜性能の評価結果を表２に示す。
[Comparative Example 6]
The ultrahigh molecular weight polyethylene powder has a viscosity average molecular weight of 3.6 million, a density of 914 kg / m 3 , an average particle size of 30 μm, and a particle size of 200 μm or more. An electrodeposition coating was applied in the same manner as in Example 6 except that a part by mass was added to form an electrodeposition coating film having a thickness of 60 μm. The evaluation results of the coating film performance are shown in Table 2.
３．溶射塗装の例
［実施例８］
試験用基材として、５０ｍｍ×５０ｍｍ（厚さ５ｍｍ）の炭素鋼の板材を用い、基材を平面研削した。次に、通常の溶射前処理と同様に、白色アルミナ質人造研削材ＷＡ＃６０を用いて、圧縮空気圧０．４ＭＰａおよびブラスト距離２００ｍｍの条件で粗面化処理を行なった。続いて、アーク溶射装置を用いて５０ｗｔ％Ｎｉ−５０ｗｔ％Ｃｒ合金線材を１００〜１５０μｍの厚さに溶射被覆し、アンダーコート溶射層を形成させた。次いで、アンダーコート溶射層上に、エポキシ樹脂７０質量部と超高分子量ポリエチレンパウダー（粘度平均分子量４００万、密度９３０ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体１００質量％として０．５質量％）３０質量部の混合物を、圧縮空気スプレーガンを用いて、塗膜厚さが５０〜１００μｍとなるように吹き付けて中間層を形成した後、電気炉に装入して、大気下８０℃で２時間の加熱を行なって、塗膜を形成させた。塗膜性能の評価結果を表３に示す。
3. Example of thermal spray coating [Example 8]
A carbon steel plate material of 50 mm × 50 mm (thickness 5 mm) was used as a test substrate, and the substrate was surface ground. Next, in the same manner as the normal thermal spraying pretreatment, a white alumina artificial abrasive WA # 60 was used to perform a roughening treatment under the conditions of a compression air pressure of 0.4 MPa and a blast distance of 200 mm. Subsequently, 50 wt% Ni-50 wt% Cr alloy wire was spray coated to a thickness of 100 to 150 μm using an arc spray apparatus to form an undercoat sprayed layer. Next, on the undercoat sprayed layer, 70 parts by mass of epoxy resin and ultra high molecular weight polyethylene powder (viscosity average molecular weight 4 million, density 930 kg / m 3 , average particle size 30 μm, particle size 200 μm or more are ultra high molecular weight polyethylene powder 100 After spraying 30 parts by mass of the mixture (0.5% by mass as mass%) using a compressed air spray gun so that the coating thickness becomes 50 to 100 μm, an intermediate layer is formed, and then charged into the electric furnace. Then, heating was performed at 80 ° C. for 2 hours in the atmosphere to form a coating film. Table 3 shows the evaluation results of the coating film performance.
［実施例９]
超高分子量ポリエチレンパウダーとして、粘度平均分子量３６０万、密度９１６ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体を１００質量％として１．１質量％のパウダー３０質量部を添加して中間層を形成させた以外は、実施例８と同様にして塗膜を形成させた。塗膜性能の評価結果を表３に示す。
[Example 9]
As ultra-high molecular weight polyethylene powder, viscosity average molecular weight 3.6 million, density 916 kg / m 3 , average particle size 30 μm, particle size 200 μm or more is 1.1 mass% of powder 30 mass parts of 1.1 mass% as a whole. Was added in the same manner as in Example 8 except that an intermediate layer was formed. Table 3 shows the evaluation results of the coating film performance.
［比較例７］
超高分子量ポリエチレンパウダーの代わりにポリエチレンワックス粒子（粘度平均分子量１万、密度９５０ｋｇ／ｍ３、平均粒径３０μｍ）３０質量部を添加した以外は、実施例８と同様にして粉体塗料を作製し、塗膜を形成させた。塗膜性能の評価結果を表３に示す。
[Comparative Example 7]
A powder coating material was prepared in the same manner as in Example 8 except that 30 parts by mass of polyethylene wax particles (viscosity average molecular weight 10,000, density 950 kg / m 3 , average particle size 30 μm) were added instead of ultrahigh molecular weight polyethylene powder. Then, a coating film was formed. Table 3 shows the evaluation results of the coating film performance.
［比較例８]
超高分子量ポリエチレンパウダーとして、粘度平均分子量３６０万、密度９１４ｋｇ／ｍ３、平均粒径３０μｍ、粒径２００μｍ以上が超高分子量ポリエチレンパウダー全体を１００質量％として１．１質量％のパウダー３０質量部を添加して中間層を形成させた以外は、実施例８と同様にして塗膜を形成させた。塗膜性能の評価結果を表３に示す。
[Comparative Example 8]
As ultra-high molecular weight polyethylene powder, viscosity average molecular weight 3.6 million, density 914 kg / m 3 , average particle size 30 μm, particle size 200 μm or more is 30% by mass of 1.1% by mass with 100% by mass as a whole. Was added in the same manner as in Example 8 except that an intermediate layer was formed. Table 3 shows the evaluation results of the coating film performance.
実施例と比較例から明らかなように、塗料原料として所定の特性を有する超高分子量ポリエチレンパウダーを使用した場合には、形成された塗膜の摩擦係数が低下し、耐擦り傷性、耐チッピング性、耐食性が顕著に改良されることが分かった。 As is clear from the examples and comparative examples, when an ultra-high molecular weight polyethylene powder having predetermined characteristics is used as a coating material, the friction coefficient of the formed coating film is reduced, and the scratch resistance and chipping resistance are reduced. It was found that the corrosion resistance was remarkably improved.
本発明の超高分子量ポリエチレンパウダーを含有する塗料は、形成された塗膜表面の摩擦係数が低く耐傷性に優れ、かつ耐チッピング性、耐食性に優れているため、様々な分野の塗装用途に活用することができる。 The paint containing the ultra high molecular weight polyethylene powder of the present invention has a low coefficient of friction on the surface of the formed coating film, excellent scratch resistance, and excellent chipping resistance and corrosion resistance, so it can be used for coating applications in various fields. can do.
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