CN113651943A - Corrosion-resistant and wear-resistant frictioning and preparation method thereof - Google Patents
Corrosion-resistant and wear-resistant frictioning and preparation method thereof Download PDFInfo
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- CN113651943A CN113651943A CN202111100959.9A CN202111100959A CN113651943A CN 113651943 A CN113651943 A CN 113651943A CN 202111100959 A CN202111100959 A CN 202111100959A CN 113651943 A CN113651943 A CN 113651943A
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- corrosion
- frictioning
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- 238000005260 corrosion Methods 0.000 title claims abstract description 32
- 230000007797 corrosion Effects 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 28
- 229920005862 polyol Polymers 0.000 claims abstract description 28
- 150000003077 polyols Chemical class 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 17
- 239000004970 Chain extender Substances 0.000 claims abstract description 16
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 16
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 16
- 229920000570 polyether Polymers 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 14
- 239000003292 glue Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- 239000012948 isocyanate Substances 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 12
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000004224 protection Effects 0.000 claims description 11
- KKYDYRWEUFJLER-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,10,10,10-heptadecafluorodecyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCC(F)(F)F KKYDYRWEUFJLER-UHFFFAOYSA-N 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 10
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- BLFRQYKZFKYQLO-UHFFFAOYSA-N 4-aminobutan-1-ol Chemical compound NCCCCO BLFRQYKZFKYQLO-UHFFFAOYSA-N 0.000 claims description 8
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 claims description 8
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 claims description 8
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000005299 abrasion Methods 0.000 claims description 6
- 229960000583 acetic acid Drugs 0.000 claims description 5
- 239000007795 chemical reaction product Substances 0.000 claims description 5
- 239000012065 filter cake Substances 0.000 claims description 5
- 239000012362 glacial acetic acid Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000000967 suction filtration Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 2
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 2
- 239000008199 coating composition Substances 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000007639 printing Methods 0.000 abstract description 8
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 12
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000007650 screen-printing Methods 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000003277 amino group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 150000003949 imides Chemical group 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- 229920005556 chlorobutyl Polymers 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical group FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6611—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/44—Iso-indoles; Hydrogenated iso-indoles
- C07D209/48—Iso-indoles; Hydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to a corrosion-resistant and wear-resistant frictioning and a preparation method thereof, belonging to the technical field of printing and comprising a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 55-100 parts of polyether polyol, 10-35 parts of polymer polyol, 20-40 parts of isocyanate, 2.4-5.2 parts of functional particles, 12.6-15.8 parts of chain extender, 0.5-1.7 parts of cross-linking agent, 0.5-1.2 parts of antioxidant and 0.2-0.5 part of catalyst; the component B comprises the following raw materials in parts by weight: 30-50 parts of curing agent, 1-3 parts of defoaming agent and 5-8 parts of polyester polyol; mixing the component A and the component B, injecting the mixture into a mold for molding, demoulding and curing to obtain the corrosion-resistant and wear-resistant frictioning glue; the functional particles are a mixture of modified SiC fibers and titanium dioxide, and the strength, the skid resistance and the wear resistance of the coating are effectively improved through fiber reinforcement and particle reinforcement.
Description
Technical Field
The invention belongs to the technical field of printing materials, and particularly relates to a corrosion-resistant and wear-resistant frictioning and a preparation method thereof.
Background
In the silk screen printing process, the frictioning is used for scraping the seal material on the pressure screen printing board, makes it miss a gluey system instrument of printing stock, and the effect of frictioning has: contacting the screen with a printing material; ensuring that the silk screen is adapted to the surface of the printing material; transferring the ink to a printing stock through a screen; and removing the redundant ink on the screen printing plate. Therefore, the squeegee is an important element in screen printing, and is critical to control of printing quality. Because the squeegee needs to contact the silk-screen printing ink for a long time in the printing process, and the silk-screen printing plate is extruded and moves back and forth under certain pressure, the screen printing squeegee is required to have good elasticity, wear resistance and solvent resistance.
The existing frictioning is of polyurethane rubber, butyronitrile rubber, chlorobutyl rubber, acrylonitrile rubber, silicon rubber, fluororubber, natural rubber and the like, but most manufacturers adopt polyurethane rubber from all aspects of performances, but the existing polyurethane frictioning is poor in wear resistance and corrosion resistance and short in service life, so that the technical problem to be solved at present is to provide the corrosion-resistant and wear-resistant frictioning.
Disclosure of Invention
The present invention aims to provide a corrosion-resistant and wear-resistant frictioning to solve the above mentioned technical problems in the background art.
The purpose of the invention can be realized by the following technical scheme:
the corrosion-resistant and wear-resistant frictioning comprises a component A and a component B;
wherein the component A comprises the following raw materials in parts by weight:
55-100 parts of polyether polyol, 10-35 parts of polymer polyol, 20-40 parts of isocyanate, 2.4-5.2 parts of functional particles, 12.6-15.8 parts of chain extender, 0.5-1.7 parts of cross-linking agent, 0.5-1.2 parts of antioxidant and 0.2-0.5 part of catalyst;
the component B comprises the following raw materials in parts by weight: 30-50 parts of curing agent, 1-3 parts of defoaming agent and 5-8 parts of polyester polyol;
the corrosion-resistant and wear-resistant frictioning is prepared by the following steps:
firstly, adding polyether polyol, polymer polyol, a chain extender and a cross-linking agent into a reaction kettle, dehydrating for 3-4 hours under the protection of nitrogen, cooling to 75-80 ℃ when the water content is less than 0.05%, adding the rest raw materials of the component A, stirring uniformly at 90 ℃, and obtaining the component A when the NCO content is 3-4%;
secondly, adding the raw materials of the component B into a reaction kettle, dehydrating for 2 hours under the protection of nitrogen, cooling to 90 ℃, and stirring to react until the NCO content is 5-10% to obtain the component B;
thirdly, mixing the component A and the component B according to the mass ratio of 100: 55-61, injecting the mixture into a mold with the mold temperature of 90-120 ℃ for molding, demoulding after 25-40min, and curing in an oven with the temperature of 100-.
Further, the polyether polyol has an average functionality of 2-4, a number average molecular weight of 1000-8000, a primary hydroxyl mass content of not less than 85%, and an unsaturation degree of not more than 0.007 meq/g.
Further, the chain extender is one or more of ethylene glycol, propylene glycol, 1, 4-butanediol and dipropylene glycol which are mixed according to any proportion.
Further, the cross-linking agent is one or more of glycerol, diethanolamine, triethanolamine or trimethylolpropane which are mixed according to any proportion.
Furthermore, the catalyst is one or more of triethylene diamine, dibutyltin dilaurate and stannous octoate which are mixed according to any proportion.
Further, the polyester polyol is one or two of PE-2420 and CMA-244 which are mixed according to any ratio.
Further, the defoaming agent is an organic silicon defoaming agent, and the curing agent is an isocyanate curing agent.
Further, the functional particles are made by the following steps:
step 1, adding trimellitic anhydride into a three-neck flask at room temperature, introducing nitrogen, adding N-methylpyrrolidone, stirring for 10-15min, adding diaminodiphenylmethane, heating to 180 ℃, carrying out heat preservation reaction for 4h, cooling to room temperature, adding 4-amino-1-butanol, carrying out reflux reaction for 3-5h, transferring a reaction product into a methanol solution after the reaction is finished, separating out solids, carrying out suction filtration, washing a filter cake with deionized water for 3-5 times, and drying at 60 ℃ to constant weight to obtain an intermediate 1; wherein the dosage ratio of the trimellitic anhydride, the N-methylpyrrolidone, the diaminodiphenylmethane and the 4-amino-1-butanol is 0.1 mol: 38-42 mL: 0.05 mol: 6-8 mL;
trimellitic anhydride, diaminodiphenylmethane and 4-amino-1-butanol are subjected to chemical reaction to obtain an intermediate 1, and the reaction process is as follows:
step 2, adding SiC fibers into a crusher, crushing for 8-10s at the rotation speed of 40000r/min, mixing with titanium dioxide, and then drying for 24h in vacuum at 100 ℃ to obtain a mixed material, dispersing the mixed material in an ethanol solution, adding glacial acetic acid to adjust the pH value to 3.5-4.5, adding KH-550 and heptadecafluorodecyltrimethoxysilane, stirring for 30-60min at the rotation speed of 100-200r/min, adding the intermediate 1, continuing stirring for reaction for 2-4h, after the reaction is finished, performing centrifugal treatment at the rotation speed of 1000-1500r/min, washing precipitates for 3-5 times with deionized water, and drying in an oven at 60 ℃ to constant weight to obtain functional particles; wherein the dosage ratio of the SiC fiber, the ethanol solution, the titanium dioxide, the KH-550, the heptadecafluorodecyltrimethoxysilane and the intermediate 1 is 3-5 g: 80-100 mL: 0.8-1.3 g: 0.5-1 g: 0.2 g: 0.2-0.4g, and the mass fraction of the ethanol solution is 42-48%.
Firstly, an intermediate 1 is obtained through a chemical reaction, the intermediate 1 contains two terminal amino groups, two imide structures and a plurality of benzene rings, SiC fibers are crushed and mixed with titanium dioxide, then the mixture is dispersed in an ethanol solution, KH-550 and heptadecafluorodecyltrimethoxysilane are used for modifying the mixture, then the intermediate 1 is added, the terminal amino groups of the intermediate 1 and epoxy groups are used for carrying out ring-opening reaction to obtain functional particles, the SiC fibers have excellent performances of high hardness, high strength, high modulus, high temperature resistance, corrosion resistance and the like, the nano titanium dioxide has ultraviolet resistance, antibacterial property, self-cleaning property and ageing resistance, and the imide and the benzene rings have strong high temperature resistance.
The invention has the beneficial effects that:
compared with the traditional polyurethane scraping glue, the corrosion-resistant and wear-resistant scraping glue prepared by the invention has the advantages that the excellent wear resistance and corrosion resistance are endowed by adding the functional particles, wherein the functional particles are a mixture of modified SiC fibers and titanium dioxide, the functional particles are randomly distributed in the glue body, and the strength, the skid resistance and the wear resistance of the glue body are effectively improved by fiber reinforcement and particle reinforcement; meanwhile, the fiber phase has the toughening effect, so that crack propagation is hindered, and cracking of the colloid is prevented; sufficient sharp bulges appear on the surface of the colloid due to the addition of titanium dioxide, the bulges greatly increase the frictional resistance of the colloid through the anchoring effect, further obviously increase the friction coefficient, the functional particles are also modified by KH-550 and heptadecafluorodecyltrimethoxysilane, the KH-550 is grafted on the functional particles to increase the compatibility of the functional particles and sizing materials, the amino group of the KH-550 can chemically react with isocyanate to improve the internal crosslinking density of the frictioning, and the heptadecafluorodecyltrimethoxysilane contains fluorocarbon chains to improve the hydrophobic, corrosion-resistant and solvent-resistant properties of the colloid.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The present embodiment provides a functional particle, which is prepared by the following steps:
step 1, adding 0.1mol of trimellitic anhydride into a three-neck flask at room temperature, introducing nitrogen, adding 38mL of N-methylpyrrolidone, stirring for 10min, adding 0.05mol of diaminodiphenylmethane, heating to 180 ℃, keeping the temperature for reaction for 4h, cooling to room temperature, adding 6mL of 4-amino-1-butanol, carrying out reflux reaction for 3h, transferring a reaction product to a methanol solution after the reaction is finished, separating out solids, carrying out suction filtration, washing a filter cake with deionized water for 3 times, and drying at 60 ℃ to constant weight to obtain an intermediate 1;
and 2, adding 3g of SiC fibers into a crusher, crushing for 8s at the rotation speed of 40000r/min, mixing with 0.8g of titanium dioxide, then drying for 24h at 100 ℃ in vacuum, dispersing the mixed material into 80mL of 42% ethanol solution by mass, adding glacial acetic acid to adjust the pH value to 3.5, adding 0.5gKH-550 and 0.2g of heptadecafluorodecyltrimethoxysilane, stirring for 30min at the rotation speed of 100r/min, adding 0.2g of the intermediate 1, continuing stirring for reaction for 2h, after the reaction is finished, performing centrifugal treatment at the rotation speed of 1000r/min, washing the precipitate with deionized water for 3 times, and drying in an oven at 60 ℃ until the weight is constant to obtain the functional particles.
Example 2
The present embodiment provides a functional particle, which is prepared by the following steps:
step 1, adding 0.1mol of trimellitic anhydride into a three-neck flask at room temperature, introducing nitrogen, adding 39mL of N-methylpyrrolidone, stirring for 12min, adding 0.05mol of diaminodiphenylmethane, heating to 180 ℃, keeping the temperature for reaction for 4h, cooling to room temperature, adding 7mL of 4-amino-1-butanol, carrying out reflux reaction for 4h, transferring a reaction product to a methanol solution after the reaction is finished, separating out solids, carrying out suction filtration, washing a filter cake with deionized water for 4 times, and drying at 60 ℃ to constant weight to obtain an intermediate 1;
and 2, adding 4g of SiC fibers into a crusher, crushing at the rotation speed of 40000r/min for 9s, mixing with 1.0g of titanium dioxide, then drying in vacuum at 100 ℃ for 24h to obtain a mixed material, dispersing the mixed material into 90mL of 47% ethanol solution by mass, adding glacial acetic acid to adjust the pH value to 3.8, adding 0.8gKH-550 and 0.2g of heptadecafluorodecyltrimethoxysilane, stirring at the rotation speed of 150r/min for 40min, adding 0.3g of the intermediate 1, continuing stirring for reaction for 3h, after the reaction is finished, performing centrifugal treatment at the rotation speed of 1200r/min, washing precipitates with deionized water for 4 times, and drying in an oven at the temperature of 60 ℃ to constant weight to obtain the functional particles.
Example 3
The present embodiment provides a functional particle, which is prepared by the following steps:
step 1, adding 0.1mol of trimellitic anhydride into a three-neck flask at room temperature, introducing nitrogen, adding 42mL of N-methylpyrrolidone, stirring for 15min, adding 0.05mol of diaminodiphenylmethane, heating to 180 ℃, keeping the temperature for reaction for 4h, cooling to room temperature, adding 8mL of 4-amino-1-butanol, carrying out reflux reaction for 5h, transferring a reaction product to a methanol solution after the reaction is finished, separating out solids, carrying out suction filtration, washing a filter cake with deionized water for 5 times, and drying at 60 ℃ to constant weight to obtain an intermediate 1;
and 2, adding 5g of SiC fibers into a crusher, crushing at the rotation speed of 40000r/min for 10s, mixing with 1.3g of titanium dioxide, then drying in vacuum at 100 ℃ for 24h to obtain a mixed material, dispersing the mixed material into 100mL of 48% ethanol solution by mass, adding glacial acetic acid to adjust the pH value to 4.5, adding 1gKH-550 and 0.2g of heptadecafluorodecyltrimethoxysilane, stirring at the rotation speed of 200r/min for 60min, then adding 0.4g of the intermediate 1, continuing stirring for reaction for 4h, after the reaction is finished, performing centrifugal treatment at the rotation speed of 1500r/min, washing precipitates with deionized water for 5 times, and drying in a 60 ℃ oven to constant weight to obtain the functional particles.
Example 4
The corrosion-resistant and wear-resistant frictioning comprises a component A and a component B;
wherein the component A comprises the following raw materials in parts by weight:
55 parts of polyether polyol, 10 parts of polymer polyol, 20 parts of isocyanate, 2.4 parts of functional particles in example 1, 12.6 parts of chain extender, 0.5 part of cross-linking agent, 0.5 part of antioxidant and 0.2 part of catalyst;
the component B comprises the following raw materials in parts by weight: 30 parts of curing agent, 1 part of defoaming agent and 5 parts of polyester polyol;
the corrosion-resistant and wear-resistant frictioning is prepared by the following steps:
firstly, adding polyether polyol, polymer polyol, a chain extender and a cross-linking agent into a reaction kettle, dehydrating for 3 hours under the protection of nitrogen, cooling to 75 ℃ when the water content is 0.04%, adding the rest raw materials of the component A, and uniformly stirring at 90 ℃ until the NCO content is 3% to obtain the component A;
secondly, adding the raw materials of the component B into a reaction kettle, dehydrating for 2 hours under the protection of nitrogen, cooling to 90 ℃, and stirring to react until the NCO content is 5 percent to obtain the component B;
thirdly, mixing the component A and the component B according to the mass ratio of 100: 55, mixing, injecting into a mold with the mold temperature of 90 ℃ for molding, demoulding after 25min, and curing in a drying oven at 100 ℃ for 18h to obtain the corrosion-resistant and wear-resistant frictioning glue.
Wherein the polyether polyol has the average functionality of 2, the number average molecular weight of 1000, the mass content of primary hydroxyl of 85 percent and the unsaturation degree of 0.006 meq/g.
The chain extender is ethylene glycol, the cross-linking agent is glycerol, the catalyst is triethylene diamine, the polyester polyol is polyester polyol PE-2420, the defoaming agent is an organic silicon defoaming agent, and the curing agent is an isocyanate curing agent.
Example 5
The corrosion-resistant and wear-resistant frictioning comprises a component A and a component B;
wherein the component A comprises the following raw materials in parts by weight:
68 parts of polyether polyol, 20 parts of polymer polyol, 30 parts of isocyanate, 3.2 parts of functional particles in example 2, 14.6 parts of chain extender, 1.2 parts of cross-linking agent, 0.8 part of antioxidant and 0.4 part of catalyst;
the component B comprises the following raw materials in parts by weight: 40 parts of curing agent, 2 parts of defoaming agent and 7 parts of polyester polyol;
the corrosion-resistant and wear-resistant frictioning is prepared by the following steps:
firstly, adding polyether polyol, polymer polyol, a chain extender and a cross-linking agent into a reaction kettle, dehydrating for 3.5 hours under the protection of nitrogen, cooling to 78 ℃ when the water content is 0.04%, adding the rest raw materials of the component A, and stirring uniformly at 90 ℃ until the NCO content is 3.5% to obtain the component A;
secondly, adding the raw materials of the component B into a reaction kettle, dehydrating for 2 hours under the protection of nitrogen, cooling to 90 ℃, and stirring to react until the NCO content is 8 percent to obtain the component B;
thirdly, mixing the component A and the component B according to the mass ratio of 100: 58, injecting the mixture into a mold with the mold temperature of 100 ℃ for molding, demoulding after 30min, and curing in an oven with the temperature of 105 ℃ for 20h to obtain the corrosion-resistant and wear-resistant frictioning glue.
Wherein the polyether polyol has the average functionality of 3, the number average molecular weight of 3000, the mass content of primary hydroxyl of 90 percent and the unsaturation degree of 0.006 meq/g.
The chain extender is ethylene glycol, the cross-linking agent is glycerol, the catalyst is triethylene diamine, the polyester polyol is polyester polyol PE-2420, the defoaming agent is an organic silicon defoaming agent, and the curing agent is an isocyanate curing agent.
Example 6
The corrosion-resistant and wear-resistant frictioning comprises a component A and a component B;
wherein the component A comprises the following raw materials in parts by weight:
100 parts of polyether polyol, 35 parts of polymer polyol, 40 parts of isocyanate, 5.2 parts of functional particles in example 3, 15.8 parts of chain extender, 1.7 parts of cross-linking agent, 1.2 parts of antioxidant and 0.5 part of catalyst;
the component B comprises the following raw materials in parts by weight: 50 parts of curing agent, 3 parts of defoaming agent and 8 parts of polyester polyol;
the corrosion-resistant and wear-resistant frictioning is prepared by the following steps:
firstly, adding polyether polyol, polymer polyol, a chain extender and a cross-linking agent into a reaction kettle, dehydrating for 4 hours under the protection of nitrogen, cooling to 80 ℃ when the water content is 0.04%, adding the rest raw materials of the component A, and uniformly stirring at 90 ℃ until the NCO content is 4% to obtain the component A;
secondly, adding the raw materials of the component B into a reaction kettle, dehydrating for 2 hours under the protection of nitrogen, cooling to 90 ℃, and stirring to react until the NCO content is 10 percent to obtain the component B;
thirdly, mixing the component A and the component B according to the mass ratio of 100: 61, mixing, injecting into a mold with the mold temperature of 120 ℃ for molding, demoulding after 40min, and curing in a drying oven with the temperature of 110 ℃ for 24h to obtain the corrosion-resistant and wear-resistant frictioning glue.
Wherein the polyether polyol has an average functionality of 4, a number average molecular weight of 8000, a primary hydroxyl mass content of 85% and an unsaturation degree of 0.005 meq/g.
The chain extender is ethylene glycol, the cross-linking agent is glycerol, the catalyst is triethylene diamine, the polyester polyol is polyester polyol CMA-244, the defoaming agent is an organic silicon defoaming agent, and the curing agent is an isocyanate curing agent.
Comparative example 1
The functional particles in example 4 were removed, and the remaining raw materials and preparation process were unchanged.
Comparative example 2
This comparative example is a scratch-off glue sold by Huizhou Dime industries Ltd.
Comparative example 3
The comparative example is a frictioning sold by the original source of the creative Chiangui science and technology of Dongguan city.
The compounds of examples 4 to 6 and comparative examples 1 to 3 were subjected to the following performance tests:
hardness (shore a): testing according to a standard GB/T531;
akron abrasion (cm)3/1.61 km): tested with reference to standard HG/T2073-2005;
acid resistance and alkali resistance: respectively soaking the scraped glue groups in sulfuric acid solution with the mass fraction of 10% for 168h and sodium hydroxide solution with the mass fraction of 5% for 240h, and observing whether the swelling phenomenon exists or not;
the test results are shown in table 1:
TABLE 1
As can be seen from Table 1, the test results of the frictionings of examples 4-6 are better than those of comparative examples 1-3 in hardness, wear resistance, acid resistance and alkali resistance tests, which shows that the frictionings prepared by the invention have excellent corrosion resistance and wear resistance.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (8)
1. The corrosion-resistant and wear-resistant frictioning glue comprises a component A and a component B, and is characterized in that the component A comprises the following raw materials: polyether polyol, polymer polyol, isocyanate, functional particles, a chain extender, a cross-linking agent, an antioxidant and a catalyst;
the component B comprises the following raw materials: curing agent, defoaming agent and polyester polyol;
wherein, the functional particles are prepared by the following steps:
step 1, adding trimellitic anhydride into a three-neck flask, introducing nitrogen, adding N-methylpyrrolidone, stirring, adding diaminodiphenylmethane, heating to 180 ℃, keeping the temperature for reaction for 4 hours, cooling to room temperature, adding 4-amino-1-butanol, carrying out reflux reaction for 3-5 hours, transferring a reaction product into a methanol solution, separating out a solid, carrying out suction filtration, washing a filter cake, and drying to obtain an intermediate 1;
and 2, crushing the SiC fibers, mixing the crushed SiC fibers with titanium dioxide, drying the mixture at 100 ℃ for 24 hours in vacuum to obtain a mixed material, dispersing the mixed material in an ethanol solution, adding glacial acetic acid to adjust the pH value to 3.5-4.5, adding KH-550 and heptadecafluorodecyltrimethoxysilane, stirring, adding the intermediate 1, reacting for 2-4 hours, centrifuging, washing, and drying to obtain the functional particles.
2. The corrosion-resistant and abrasion-resistant frictioning as claimed in claim 1, wherein the ratio of the amounts of trimellitic anhydride, N-methylpyrrolidone, diaminodiphenylmethane and 4-amino-1-butanol in step 1 is 0.1 mol: 38-42 mL: 0.05 mol: 6-8 mL.
3. The anti-corrosion and anti-wear frictioning of claim 1, wherein the ratio of the amount of SiC fiber, ethanol solution, titanium dioxide, KH-550, heptadecafluorodecyltrimethoxysilane and intermediate 1 in step 2 is 3-5 g: 80-100 mL: 0.8-1.3 g: 0.5-1 g: 0.2 g: 0.2-0.4 g.
4. The corrosion-resistant and abrasion-resistant frictioning glue of claim 1, wherein the component A comprises the following raw materials in parts by weight:
55-100 parts of polyether polyol, 10-35 parts of polymer polyol, 20-40 parts of isocyanate, 2.4-5.2 parts of functional particles, 12.6-15.8 parts of chain extender, 0.5-1.7 parts of cross-linking agent, 0.5-1.2 parts of antioxidant and 0.2-0.5 part of catalyst.
5. The corrosion-resistant and abrasion-resistant frictioning glue of claim 1, wherein the component B comprises the following raw materials in parts by weight:
30-50 parts of curing agent, 1-3 parts of defoaming agent and 5-8 parts of polyester polyol.
6. The anti-corrosion and anti-wear frictioning as claimed in claim 1, wherein the catalyst is one or more of triethylene diamine, dibutyl tin dilaurate and stannous octoate, and is mixed in any proportion.
7. The corrosion-resistant and abrasion-resistant coating composition according to claim 1, wherein the defoaming agent is a silicone-based defoaming agent.
8. The method for preparing a corrosion-resistant and abrasion-resistant frictioning as claimed in claim 1, comprising the steps of:
firstly, adding polyether polyol, polymer polyol, a chain extender and a cross-linking agent into a reaction kettle, dehydrating for 3-4 hours under the protection of nitrogen, cooling to 75-80 ℃ when the water content is less than 0.05%, adding the rest raw materials of the component A, stirring uniformly at 90 ℃, and obtaining the component A when the NCO content is 3-4%;
secondly, adding the raw materials of the component B into a reaction kettle, dehydrating for 2 hours under the protection of nitrogen, cooling to 90 ℃, and stirring to react until the NCO content is 5-10% to obtain the component B;
thirdly, mixing the component A and the component B according to the mass ratio of 100: 55-61, injecting the mixture into a mold with the mold temperature of 90-120 ℃ for molding, demoulding after 25-40min, and curing in an oven with the temperature of 100-.
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