CN103834264B - Salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating and preparation method thereof - Google Patents
Salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating and preparation method thereof Download PDFInfo
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- CN103834264B CN103834264B CN201410064035.1A CN201410064035A CN103834264B CN 103834264 B CN103834264 B CN 103834264B CN 201410064035 A CN201410064035 A CN 201410064035A CN 103834264 B CN103834264 B CN 103834264B
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- polyaniline
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- 238000000576 coating method Methods 0.000 title claims abstract description 151
- 239000011248 coating agent Substances 0.000 title claims abstract description 149
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 229920000767 polyaniline Polymers 0.000 title claims abstract description 113
- 239000004593 Epoxy Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 84
- 239000000203 mixture Substances 0.000 claims abstract description 52
- 239000003822 epoxy resin Substances 0.000 claims abstract description 43
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 43
- 239000012046 mixed solvent Substances 0.000 claims abstract description 37
- 150000001412 amines Chemical class 0.000 claims abstract description 28
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000049 pigment Substances 0.000 claims abstract description 18
- 239000013530 defoamer Substances 0.000 claims abstract description 16
- 239000006185 dispersion Substances 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 16
- 238000007665 sagging Methods 0.000 claims abstract description 16
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 56
- 238000003756 stirring Methods 0.000 claims description 46
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 24
- 239000002253 acid Substances 0.000 claims description 22
- 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 claims description 21
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 18
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 16
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 14
- 239000002019 doping agent Substances 0.000 claims description 12
- 238000013019 agitation Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 11
- 206010013786 Dry skin Diseases 0.000 claims description 10
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 10
- 239000012153 distilled water Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims description 10
- 239000002244 precipitate Substances 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 239000004160 Ammonium persulphate Substances 0.000 claims description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 8
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 8
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 8
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 6
- 150000007524 organic acids Chemical class 0.000 claims description 6
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 5
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 5
- 229930185605 Bisphenol Natural products 0.000 claims description 5
- 239000004159 Potassium persulphate Substances 0.000 claims description 5
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 5
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 5
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 5
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 5
- 235000019394 potassium persulphate Nutrition 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 4
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 4
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 claims description 4
- 239000012286 potassium permanganate Substances 0.000 claims description 4
- 150000004982 aromatic amines Chemical class 0.000 claims description 3
- 239000002345 surface coating layer Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 16
- 230000007797 corrosion Effects 0.000 abstract description 15
- 238000005299 abrasion Methods 0.000 abstract description 10
- 239000013535 sea water Substances 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 4
- 230000003260 anti-sepsis Effects 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 abstract description 2
- 230000003487 anti-permeability effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 16
- 239000003973 paint Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 10
- 238000011056 performance test Methods 0.000 description 10
- 239000007921 spray Substances 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 9
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 9
- 238000007605 air drying Methods 0.000 description 9
- 150000001298 alcohols Chemical class 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 239000012188 paraffin wax Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 8
- 229910000077 silane Inorganic materials 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 150000001408 amides Chemical class 0.000 description 5
- 238000002161 passivation Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 4
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 4
- 229910002012 Aerosil® Inorganic materials 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 4
- -1 Synolac Polymers 0.000 description 4
- 235000012211 aluminium silicate Nutrition 0.000 description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 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 4
- 239000002609 medium Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- 229960001124 trientine Drugs 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 3
- 239000004922 lacquer Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- LLQHSBBZNDXTIV-UHFFFAOYSA-N 6-[5-[[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]methyl]-4,5-dihydro-1,2-oxazol-3-yl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC1CC(=NO1)C1=CC2=C(NC(O2)=O)C=C1 LLQHSBBZNDXTIV-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 description 1
- 229910000004 White lead Inorganic materials 0.000 description 1
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- ZLFVRXUOSPRRKQ-UHFFFAOYSA-N chembl2138372 Chemical compound [O-][N+](=O)C1=CC(C)=CC=C1N=NC1=C(O)C=CC2=CC=CC=C12 ZLFVRXUOSPRRKQ-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 229940068041 phytic acid Drugs 0.000 description 1
- 239000000467 phytic acid Substances 0.000 description 1
- 235000002949 phytic acid Nutrition 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- Paints Or Removers (AREA)
Abstract
The invention discloses salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating and preparation method thereof, coating comprises first, second two kinds of components, and first component comprises according to the mass fraction: epoxy resin 35-85, polyaniline zinc powder scale 0.5-25, aluminum oxide 0.1-10, pigment 0.1-5, filler 1-15, anti-sagging agent 0.01-2, dispersion agent 0.01-0.5, flow agent 0.01-2, defoamer 0.01-0.5, mixed solvent 5-40; Component B comprises according to the mass fraction: amine curing agent 40-90, solvent 10-60; By first component and second component 1:0.1-1:1 mix and blend 1-5min in mass ratio.Corrosion resistance nature, the sea water resistance of this coating system wash away Abrasion properties, and ageing-resistant and anti-permeability performance significantly improves, and can be applicable to the heavy antisepsis engineering in the fields such as petrochemical equipment, pipeline, offshore oil platform, terminal facilities, boats and ships.
Description
Technical field
The invention belongs to technical field of coatings, particularly salic polyaniline-modified zinc powder scale epoxy heavy-duty anticorrosive coating and preparation method thereof.
Background technology
Ocean environment belongs to exceedingly odious corrosive environment.Oceanographic engineering facility and be equipped in ocean environment and will be subject to the comprehensive action of strong atomospheric corrosion, galvanic corrosion, air-flow and current scour erosion and biological corrosion, the work-ing life of various steel construction is far below general inland outdoor environment.Along with country is to the speed-raising of infrastructure development project, the Important Project such as marine surveys platform, production vessel, marine oil-collecting feed channel, boats and ships, port and pier, bridge puts into operation in a large number, but such complexity in ocean and under severe corrosive environment, how to ensure quality and the work-ing life of these Important Project, become crucial, a far reaching technical barrier.
Organic coating is the effective means of marine corrosion protection, coating need have good shielding effect, matrix and corrosive medium are completely cut off, simultaneously coating itself need have the etch of good medium corrosion-resistant, abrasion and the characteristic such as ageing-resistant, therefore requires that coating has good solidity to corrosion, permeability resistance and long work-ing life.Mainly contain the various kinds of resin such as epoxy, polyester, urethane, Synolac, resol, fluorocarbon resin, supervinyi chloride resin, chlorinated rubber, chlorinatedpolyethylene to be at present applied in marine anticorrosion erosion engineering.Chinese patent (ZL200810012658.9, ZL200810012655.5, ZL200810012659.3) describe polyaniline-modified glass flakes resin heavy-duty coating, coating is made up of epoxy or polyester or vinyl ester resin, polyaniline-modified glass flakes, solidifying agent etc.But its defect is, glass flake is inorganic materials, and fragility is very large, and poor with the consistency of organic polymer resin, glass thermal conductivity is low, is unfavorable for the raising of coating heat resistance.In addition, because glass is transparent, effectively can not reduce the destruction of ultraviolet to coating, thus also be difficult to the weathering resistance improving coating.Patent (ZL201010589078.3) describes a kind of polyaniline modified anti-corrosive coating and preparation method thereof, coating is made up of epoxy resin, polyaniline/palygorskite nano composite material, amine curing agent and solvent etc., its defect is that this coating does not add the auxiliary agent such as color stuffing, anti-sagging agent, although its solidity to corrosion increases, its over-all properties such as mechanical property, weathering resistance is not improved.Patent (ZL200810012653.6) describes a kind of polyaniline modified anti-corrosive coating, by the process of polyaniline to pigment, reduce the toxicity of coating, patent (ZL200810012657.4) describes a kind of polyaniline modified aluminium powder anti-corrosive coating and preparation method thereof, is intended to the environmental issue solving existing aluminium paint antiseptic property difference and pigment.In ocean environment, corrosion protection coating not only needs to have good solidity to corrosion; permeability resistance; also need that there is good mechanical property, sticking power and sea water resistance and wash away Abrasion properties; this problem is not also effectively solved at present; therefore, develop a kind of heavy-duty coating that can play better protected effect to matrix be marine anticorrosion in the urgent need to.
Summary of the invention
The object of the invention is to provide salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating and preparation method thereof to overcome above the deficiencies in the prior art.
The present invention is achieved by the following technical solutions:
Salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, comprises first, second two kinds of components:
First components in mass portion number meter comprises:
Epoxy resin 35 ~ 85 parts, 0.5 ~ 25 part, polyaniline zinc powder scale, 0.1 ~ 10 part, aluminum oxide, pigment 0.1 ~ 5 part, filler 1 ~ 15 part, anti-sagging agent 0.01 ~ 2 part, dispersion agent 0.01 ~ 0.5 part, flow agent 0.01 ~ 2 part, defoamer 0.01 ~ 0.5 part, mixed solvent 5 ~ 40 parts;
Second components in mass portion number meter comprises:
Amine curing agent 40 ~ 90 parts, dehydrated alcohol 10 ~ 60 parts;
The quality proportioning of first component and second component is 1:0.1 ~ 1:1.
Described salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, the preparation method of described polyaniline zinc powder scale can be as follows: by molfraction, get 0.1 ~ 1 part of aniline, 0.2 ~ 2 part of dopant acid, 0.1 ~ 1 part of oxygenant, mixed with dopant acid by aniline and stir, constant volume makes concentration of aniline be 0.1 ~ 1 mol/L subsequently; Then oxygenant was evenly added Doped with Aniline acid solution in 10 ~ 30 minutes, stir 0.5 ~ 1 hour at-5 DEG C ~ 25 DEG C, obtain product polyaniline; Wherein dopant acid is one or more in sulfuric acid, phosphoric acid, perchloric acid or organic acid; Oxygenant is one or more in ammonium persulphate, hydrogen peroxide, Potassium Persulphate, benzoyl peroxide, iron trichloride, potassium bichromate or potassium permanganate; According to the mass fraction, by gained polyaniline 1 part, the mixing of 0.5 ~ 10 part, zinc powder scale, continues stirring 1 ~ 4 hour, centrifuging and taking precipitates, and with distilled water wash, 80 ~ 100 DEG C of dryings are after 1 ~ 5 hour, with mortar grinder, and sieve, obtain bottle-green polyaniline zinc powder scale.
Described salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, epoxy resin can be one or both in bisphenol A type epoxy resin or bisphenol f type epoxy resin.
Described salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, described amine curing agent can be the one in fatty amine, aromatic amine, cycloaliphatic amines or amine modified firming agent.Wherein fatty amine, as quadrol, diethylenetriamine, triethylene tetramine, tetraethylene pentamine; Aromatic amine, as mphenylenediamine, m-xylene diamine; Cycloaliphatic amines, as isophorone diamine, 4,4 '-two amido dicyclohexyl methyl hydride, two (4-amino-3-methyl cyclohexane alkyl) methane; Amine modified firming agent, as amine additives solidifying agent and mannich base (Mannich) addition polyamine curing agent; Amides solidifying agent, as the polymeric amide of 200,300,650,651 models.
Described salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, polyaniline zinc powder scale can be sheet structure, and consisting of surface coating layer is polyaniline, and inside is zinc powder scale; Wherein polyaniline can be one or more in sulfuric acid doped polyaniline, phosphate-doped polyaniline, perchloric acid doped polyaniline or organic acid doped polyaniline, and the sheet of zinc powder scale is thick can be 0.01 ~ 0.3 μm, and sheet footpath is 1 ~ 20 μm, and radius-thickness ratio is greater than 60.
Described salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, described aluminum oxide can be α type, and particle diameter can be 0.01 ~ 45 μm.
Described salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, described mixed solvent can be a kind of mixture in a kind of and propyl carbinol in toluene, dimethylbenzene, vinylbenzene, isopropylcarbinol, the trimethyl carbinol, butanone, pimelinketone.
Described pigment can be the pigment that coating is conventional, as titanium dioxide, white lead, zinc oxide, lithopone, phthalein viridescent, toluidine red or red iron oxide etc.; Filler is the filler that coating is conventional, as ground barium sulfate, GL ground limestone, precipitated calcium carbonate, talcum powder, quartz sand etc.
Described anti-sagging agent can be one of wilkinite, polynite, kaolin, aerosil or mixture.
Described dispersion agent, flow agent, defoamer are the auxiliary agents that coating is conventional.Dispersion agent, as Disperbykl03, Disperbykl06, Disperbykl07, Disperbyk163, Disperbyk164, Disperbyk180, Disperbyk184, Disperbyk2000, Anti-Terra-P, Anti-Terra-204, BYK-P104S etc. of German Bi Ke chemical company (BYKChemie); Flow agent, as the BYK-VP-354,3609,3529 etc. of the PerenolF40 of Henkel company, German Bi Ke chemical company; Defoamer, as the Defom5300,5400,5500 or BYK-065, BYK-066N of German Bi Ke chemical company of De Qian chemical company.
The preparation method of the salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating described in more than one, comprises the steps:
(1) prepare polyaniline zinc powder scale: by molfraction, get 0.1 ~ 1 part of aniline, 0.2 ~ 2 part of dopant acid, 0.1 ~ 1 part of oxygenant, mixed by aniline and stir with dopant acid, constant volume makes concentration of aniline be 0.1 ~ 1 mol/L subsequently; Then oxygenant was evenly added Doped with Aniline acid solution in 10 ~ 30 minutes, stir 0.5 ~ 1 hour at-5 DEG C ~ 25 DEG C, obtain product polyaniline; Wherein dopant acid is one or more in sulfuric acid, phosphoric acid, perchloric acid or organic acid; Oxygenant is one or more in ammonium persulphate, hydrogen peroxide, Potassium Persulphate, benzoyl peroxide, iron trichloride, potassium bichromate or potassium permanganate; According to the mass fraction, by gained polyaniline 1 part, the mixing of 0.5 ~ 10 part, zinc powder scale, continues stirring 1 ~ 4 hour, centrifuging and taking precipitates, and with distilled water wash, 80 ~ 100 DEG C of dryings are after 1 ~ 5 hour, with mortar grinder, and sieve, obtain bottle-green polyaniline-modified zinc powder scale;
(2) coating first component is prepared:
(a) first component mixed solvent: the one in a kind of and propyl carbinol in toluene, dimethylbenzene, vinylbenzene, isopropylcarbinol, the trimethyl carbinol, butanone, pimelinketone is mixed, a kind of quality wherein in selected toluene, dimethylbenzene, vinylbenzene accounts for 25% ~ 75% of mixed solvent total mass;
B () joins aluminum oxide, dispersion agent, flow agent, defoamer, anti-sagging agent, pigment, filler in the mixed solvent of epoxy resin and step (a) gained, stir, then under agitation step (1) gained polyaniline zinc powder scale is added wherein, carry out being ground in coating grinding equipment fineness be less than 60 microns after discharging, obtain salic polyaniline-modified zinc powder scale epoxy heavy-duty anticorrosive coating first component;
(3) coating second component is prepared:
Be that the amine curing agent of 40 ~ 90 parts mixes with the dehydrated alcohol of 10 ~ 60 parts by mass parts, stir to solidifying agent and dissolve;
(4) coating is prepared:
By first component and second component in mass ratio 1:0.1 ~ 1:1 mix and blend 1 ~ 5min namely obtain salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating.
Polyaniline zinc powder scale has the multi-efficiency of " passivation, slowly-releasing " and " electro-chemical protection ", makes metal surface passivation, forms the oxide film that one deck is fine and close, stable, stops the further oxidation of metal; Zinc powder scale is conducive to the ageing-resistant and permeability resistance improving coating, and the interpolation of aluminum oxide can improve the mechanical property of coating, wear resistance, abrasion resistance and coating adhesion; Thus overcome existing heavy-duty coating not sea water resistance soak wash away abrasion, permeability resistance is not good, protection life-span short limitation, solves when constructing that major part will at substrate surface coating prime lacquer, coating and base material sticking power not good, easily there is problems such as corroding in coating and substrate interface place.
The present invention adopts the advantage of technique scheme to be:
1, the present invention is prepared and the polyaniline zinc powder scale selected has the double properties of polyaniline and zinc powder scale concurrently, both has " passivation " and " slowly-releasing " effect, and has again " mechanical masking " and " electro-chemical protection " and act on.In the present invention, polyaniline and metallic surface interact, and make metal surface passivation, form the oxide film that one deck is fine and close, stable, prevent the further oxidation of metal.Metal scale, compared with glass flake, can make the mechanical property of whole coating system, ageing-resistant performance etc. significantly improve.
2, the selecting of aluminum oxide of the present invention, improve the mechanical property of coating, sea water resistance washes away Abrasion properties, and coating adhesion also obtains larger improvement.
3, adopt the present invention, the multicomponent mixture in compound coating forms fine and close network, and the approach making corrosive medium diffuse and penetrate into metallic surface becomes tortuous, substantially prolongs the time of medium osmosis; Using the different mixed solvent of rate of volatilization as dispersion medium, effectively control coating organic solvent rate of volatilization, be conducive to forming dense coating, improve the permeability resistance of coating.
4, adopt the present invention, can priming paint be replaced, directly be coated on substrate surface; Coating excellent storage stability, not easily sinks to the bottom in addition.
The present invention's salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating by epoxy resin, self-control polyaniline zinc powder scale, aluminum oxide, amine curing agent, the composition such as color stuffing and various auxiliary agents.Oxidative polymerization method is utilized to form polyaniline-coated layer on zinc powder scale surface; zinc powder scale after process has passivation, slowly-releasing and electro-chemical protection to metal; the employing of compound coating and mixed solvent is conducive to forming fine and close reticulated structure to improve the permeability resistance of coating; add the mechanical property of the polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating after aluminum oxide, resistance to erosion Abrasion properties and coating adhesion to be all improved, can be applicable to the heavy antisepsis engineering of petrochemical equipment, pipeline, offshore oil platform, terminal facilities, boats and ships etc.The protection of be specially adapted to that waves splash about district and Tidal zone.
embodiment:
Below in conjunction with embodiment and comparative example, technique scheme of the present invention is further described, but never limits the scope of the invention, in the present invention unless specifically stated otherwise outside, involved ratio is mass ratio, and involved number is mass parts.
Comparative example 1-2
1 part of dimethylbenzene is mixed with 1 part of propyl carbinol, stirs and obtain mixed solvent.Dispersion agent (BYK-P104S) 0.1 part, flow agent (BYK-VP-3609) 0.01 part, defoamer (BYK-065) 0.3 part, anti-sagging agent (aerosil) 0.01 part, pigment (red iron oxide) 5 parts, filler (talcum powder) 1 part are joined in 85 parts of epoxy resin (bisphenol A type epoxy resin E-12) and 5 parts of mixed solvents, stir, then grind in general coating grinding equipment, discharging after fineness is less than 60 microns, obtains epoxy resin composition;
Under agitation the zinc powder scale of 25 parts, 6 parts (corresponding comparative example 1, comparative example 2) non-modified is added in the epoxy resin composition of gained, be uniformly dispersed, obtain zinc powder scale epoxy heavy-duty anticorrosive coating first component;
In 60 parts of dehydrated alcohols, add 40 parts of amine curing agents (triethylene tetramine), mix to solidifying agent dissolving and namely obtain second component;
Namely first component and second component are obtained zinc powder scale epoxy heavy-duty anticorrosive coating by weight 1:0.5 mix and blend 2min.
Spray this coating twice, Air drying 15 days at commercial blast process to the four 150mm × 100mm × 1mm45 surface of steel plate of Sa2.5 level, then use weight ratio rosin: 60 DEG C of liquid of paraffin=l:1 carry out edge sealing, carry out coating performance test.The build of paint film is 500 ± 10 μm.
Comparative example 3-4
2 parts of toluene are mixed with 1.5 parts of butanone, stirs and obtain mixed solvent.Thick by silane coupling agent KH580 processing blades is 0.02 μm, and sheet footpath is the zinc powder scale of 9 μm, obtains silane coupler modified zinc powder scale;
Dispersion agent (Anti-Terra-P) 0.5 part, flow agent (BYK-VP-354) 0.8 part, defoamer (Defom5400) 0.5 part, anti-sagging agent (kaolin) 1 part, pigment (titanium dioxide) 2 parts, filler (ground barium sulfate) 15 parts are joined in 60 parts of epoxy resin (bisphenol f type epoxy resin Dow354) and 25 parts of mixed solvents, stir, then grind in general coating grinding equipment, discharging after fineness is less than 60 microns, obtains epoxy resin composition;
Under agitation 9 parts, 12 parts (corresponding comparative example 3, comparative example 4) silane coupler modified zinc powder scales are added in the epoxy resin composition of gained, be uniformly dispersed, obtain silane coupler modified zinc powder scale epoxy heavy-duty anticorrosive coating first component;
In 10 parts of dehydrated alcohols, add 90 parts of amine curing agents (isophorone diamine), mix to solidifying agent dissolving and namely obtain second component;
Namely first component and second component are obtained silane coupler modified zinc powder scale epoxy heavy-duty anticorrosive coating by weight 1:0.2 mix and blend 3min.
Spray this coating twice, Air drying 15 days at commercial blast process to the four 150mm × 100mm × 1mm45 surface of steel plate of Sa2.5 level, then use weight ratio rosin: 60 DEG C of liquid of paraffin=l:1 carry out edge sealing, carry out coating performance test.The build of paint film is 500 ± 10 μm.
Comparative example 5-6
Vinylbenzene 1 part and butanone 0.8 part is mixed, stirs and obtain mixed solvent.Thick by silane coupling agent KH570 processing blades is 0.1 μm, and sheet footpath is the zinc powder scale of 10 μm, obtains silane coupler modified zinc powder scale;
0.1 part, aluminum oxide (particle diameter 1 μm), 10 parts of (comparative example 5, comparative example 6), dispersion agent (Disperbykl06) 0.01 part, flow agent (PerenolF40) 2 parts, defoamer (Defom5300) 0.01 part, anti-sagging agent (wilkinite) 2 parts, pigment (lithopone) 0.1 part, filler (GL ground limestone) 6 parts joins in 35 parts of epoxy resin (bisphenol A type epoxy resin E51) and 40 parts of mixed solvents, stir, then grind in general coating grinding equipment, discharging after fineness is less than 60 microns, obtain salic epoxy resin composition,
Under agitation 15 parts, 0.5 part (corresponding comparative example 5, comparative example 6) silane coupler modified zinc powder scale is added in the salic epoxy resin composition of gained, be uniformly dispersed, obtain salic silane coupler modified zinc powder scale epoxy heavy-duty anticorrosive coating first component;
In 30 parts of dehydrated alcohols, add 70 parts of amine curing agents (651 polymeric amide), mix to solidifying agent and fully dissolve and namely obtain second component;
Namely first component and second component are obtained salic silane coupler modified zinc powder scale epoxy heavy-duty anticorrosive coating by weight 1:0.3 mix and blend 5min.
Spray this coating twice, Air drying 15 days at commercial blast process to the four 150mm × 100mm × 1mm45 surface of steel plate of Sa2.5 level, then use weight ratio rosin: 60 DEG C of liquid of paraffin=l:1 carry out edge sealing, carry out coating performance test.The build of paint film is 500 ± 10 μm.
Embodiment 1
A preparation method for salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, comprises the steps:
(1) polyaniline zinc powder scale is prepared: get 0.5 aniline and 1 perchloric acid that rubs that rubs and mix and stir, constant volume is 2 liters subsequently; The ammonium persulphate that rubs 0.5 evenly added Doped with Aniline acid solution in 20 minutes, stirs 0.5 hour, obtain product polyaniline at 10 DEG C.According to the mass fraction, by thick to gained polyaniline 1 part and sheet be 0.01 μm, sheet footpath is the mixing of 5 parts, 5 μm of zinc powder scales, continue stirring 2 hours, centrifuging and taking precipitates, with distilled water wash, 100 DEG C of dryings are after 1 hour, sieve, obtain bottle-green polyaniline zinc powder scale with mortar grinder.
(2) coating first component is prepared:
(a) first component mixed solvent: 1 part of dimethylbenzene is mixed with 1 part of propyl carbinol, obtains mixed solvent;
B () is 5 parts, aluminum oxide (particle diameter 8 μm), dispersion agent (BYK-P104S) 0.1 part, flow agent (BYK-VP-3609) 0.01 part, defoamer (BYK-065) 0.3 part, anti-sagging agent (aerosil) 0.01 part, pigment (red iron oxide) 5 parts, filler (talcum powder) 1 part joins in 85 parts of epoxy resin (bisphenol A type epoxy resin E-12) and 5 parts of mixed solvents, stir, obtain salic epoxy resin composition, then under agitation above-mentioned gained 25 parts of polyaniline zinc powder scales are added wherein, carry out being ground in universal lacquer grinding plant fineness be less than 60 microns after discharging, obtain salic polyaniline-modified zinc powder scale epoxy heavy-duty anticorrosive coating first component,
(3) coating second component is prepared:
In 60 parts of dehydrated alcohols, add 40 parts of amine curing agents (triethylene tetramine), mix to solidifying agent and dissolve, prepare second component;
(4) coating is prepared:
By first component and second component in mass ratio 1:0.5 mix and blend 2min namely obtain salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating.
Spray this coating twice, Air drying 15 days at commercial blast process to the four 150mm × 100mm × 1mm45 surface of steel plate of Sa2.5 level, then use weight ratio rosin: 60 DEG C of liquid of paraffin=l:1 carry out edge sealing, carry out coating performance test.The build of paint film is 500 ± 10 μm.
Embodiment 2
A preparation method for salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, comprises the steps:
(1) polyaniline zinc powder scale is prepared: get 0.1 aniline and 0.2 phosphoric acid that rubs that rubs and mix and stir, constant volume is 1 liter subsequently; The benzoyl peroxide that rubs 0.1 evenly added Doped with Aniline acid solution in 10 minutes, stirs 0.5 hour, obtain product polyaniline at-5 DEG C.According to the mass fraction, by thick to gained polyaniline 1 part and sheet be 0.01 μm, sheet footpath is the mixing of 0.5 part, 5 μm of zinc powder scales, continue stirring 1 hour, centrifuging and taking precipitates, with distilled water wash, 80 DEG C of dryings are after 5 hours, sieve, obtain bottle-green polyaniline zinc powder scale with mortar grinder.
(2) coating first component is prepared:
(a) first component mixed solvent: 1 part of vinylbenzene is mixed with 3 parts of trimethyl carbinols, obtains mixed solvent;
B () is 0.1 part, aluminum oxide (particle diameter 8 μm), dispersion agent (BYK-P104S) 0.01 part, flow agent (BYK-VP-3609) 0.01 part, defoamer (BYK-065) 0.01 part, anti-sagging agent (aerosil) 0.01 part, pigment (red iron oxide) 0.1 part, filler (talcum powder) 1 part joins in 35 parts of epoxy resin (bisphenol A type epoxy resin E-12) and 5 parts of mixed solvents, stir, obtain salic epoxy resin composition, then under agitation above-mentioned gained 0.5 part of polyaniline zinc powder scale is added wherein, carry out being ground in universal lacquer grinding plant fineness be less than 60 microns after discharging, obtain salic polyaniline-modified zinc powder scale epoxy heavy-duty anticorrosive coating first component,
(3) coating second component is prepared:
In 10 parts of dehydrated alcohols, add 50 parts of amine curing agents (triethylene tetramine), mix to solidifying agent and dissolve, prepare second component;
(4) coating is prepared:
By first component and second component in mass ratio 1:0.5 mix and blend 2min namely obtain salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating.
Spray this coating twice, Air drying 15 days at commercial blast process to the four 150mm × 100mm × 1mm45 surface of steel plate of Sa2.5 level, then use weight ratio rosin: 60 DEG C of liquid of paraffin=l:1 carry out edge sealing, carry out coating performance test.The build of paint film is 500 ± 10 μm.
Embodiment 3
A preparation method for salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, comprises the steps:
(1) polyaniline zinc powder scale is prepared: the aniline, 0.5 that rubs 0.6 phosphoric acid, 0.6 phytic acid that rubs that rubs mixes and stirs, and constant volume is 1 liter subsequently; Then the ammonium persulphate that rubs 0.6 evenly added Doped with Aniline acid solution in 20 minutes, stirs 1 hour, obtain product polyaniline at 5 DEG C.According to the mass fraction, by thick to gained polyaniline 1 part and sheet be 0.02 μm, sheet footpath is 2 parts, the zinc powder scale mixing of 9 μm, continuation stirring 2 hours, centrifuging and taking precipitates, and with distilled water wash, 80 DEG C of dryings are after 4 hours, with mortar grinder, and sieve, obtain bottle-green polyaniline zinc powder scale;
(2) coating first component is prepared:
(a) first component mixed solvent: 2 parts of toluene are mixed with 1.5 parts of butanone, obtains mixed solvent.
B () is aluminum oxide ((particle diameter 3 μm) 10 parts, dispersion agent (Anti-Terra-P) 0.5 part, flow agent (BYK-VP-354) 0.8 part, defoamer (Defom5400) 0.5 part, anti-sagging agent (kaolin) 1 part, pigment (titanium dioxide) 2 parts, filler (ground barium sulfate) 15 parts joins in 60 parts of epoxy resin (bisphenol f type epoxy resin Dow354) and 25 parts of mixed solvents, stir, obtain salic epoxy resin composition, then under agitation above-mentioned gained 9 parts of polyaniline zinc powder scales are added wherein, carry out being ground in coating grinding equipment fineness be less than 60 microns after discharging, obtain salic polyaniline-modified zinc powder scale epoxy heavy-duty anticorrosive coating first component,
(3) coating second component is prepared:
In 10 parts of dehydrated alcohols, add 90 parts of amine curing agents (isophorone diamine), mix to solidifying agent and fully dissolve and namely obtain second component;
(4) coating is prepared:
Namely first component and second component are obtained salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating by weight 1:0.2 mix and blend 3min.
Spray this coating twice, Air drying 15 days at commercial blast process to the four 150mm × 100mm × 1mm45 surface of steel plate of Sa2.5 level, then use weight ratio rosin: 60 DEG C of liquid of paraffin=l:1 carry out edge sealing, carry out coating performance test.The build of paint film is 500 ± 10 μm.
Embodiment 4
A preparation method for salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, comprises the steps:
(1) polyaniline zinc powder scale is prepared: the aniline, 1.2 that rubs 0.8 sulfuric acid that rubs mixes and stirs, and constant volume is 2 liters subsequently; Then the ammonium persulphate that rubs 0.8 evenly added Doped with Aniline acid solution in 25 minutes, stirs 1 hour, obtain product polyaniline at 15 DEG C.According to the mass fraction, by thick to gained polyaniline 1 part and sheet be 0.02 μm, sheet footpath is 6 parts, the zinc powder scale mixing of 9 μm, continuation stirring 3 hours, centrifuging and taking precipitates, and with distilled water wash, 90 DEG C of dryings are after 2 hours, with mortar grinder, and sieve, obtain bottle-green polyaniline zinc powder scale;
(2) coating first component is prepared:
(a) first component mixed solvent: 3 parts of dimethylbenzene are mixed with 1 part of pimelinketone, obtains mixed solvent.
B () is aluminum oxide ((particle diameter 3 μm) 8 parts, dispersion agent (Anti-Terra-P) 0.4 part, flow agent (BYK-VP-354) 1.5 parts, defoamer (Defom5400) 0.4 part, anti-sagging agent (kaolin) 1.6 parts, pigment (titanium dioxide) 3 parts, filler (ground barium sulfate) 12 parts joins in 70 parts of epoxy resin (bisphenol f type epoxy resin Dow354) and 35 parts of mixed solvents, stir, obtain salic epoxy resin composition, then under agitation above-mentioned gained 16 parts of polyaniline zinc powder scales are added wherein, carry out being ground in coating grinding equipment fineness be less than 60 microns after discharging, obtain salic polyaniline-modified zinc powder scale epoxy heavy-duty anticorrosive coating first component,
(3) coating second component is prepared:
In 30 parts of dehydrated alcohols, add 60 parts of amine curing agents (isophorone diamine), mix to solidifying agent and fully dissolve and namely obtain second component;
(4) coating is prepared:
Namely first component and second component are obtained salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating by weight 1:0.6 mix and blend 5min.
Spray this coating twice, Air drying 15 days at commercial blast process to the four 150mm × 100mm × 1mm45 surface of steel plate of Sa2.5 level, then use weight ratio rosin: 60 DEG C of liquid of paraffin=l:1 carry out edge sealing, carry out coating performance test.The build of paint film is 500 ± 10 μm.
Embodiment 5
A preparation method for salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, comprises the steps:
(1) polyaniline zinc powder scale is prepared: the aniline, 0.45 that rubs 0.4 phosphoric acid, 0.45 sulfuric acid that rubs that rubs mixes and stirs, and constant volume is 1 liter subsequently; Then the ammonium persulphate that rubs 0.5 evenly added Doped with Aniline acid solution in 30 minutes, stirs 0.5 hour, obtain product polyaniline at 0 DEG C.According to the mass fraction, by thick to gained polyaniline 1 part and sheet be 0.1 μm, sheet footpath is 8 parts, the zinc powder scale mixing of 10 μm, continue stirring 2 hours, centrifuging and taking precipitates, with distilled water wash, 80 DEG C of dryings are after 4 hours, sieve, obtain bottle-green polyaniline zinc powder scale with mortar grinder.
(2) coating first component is prepared:
(a) first component mixed solvent: 1 part of vinylbenzene is mixed with 0.8 part of butanone, obtains mixed solvent.
B () is 0.1 part, aluminum oxide (particle diameter 1 μm), dispersion agent (Disperbykl06) 0.01 part, flow agent (PerenolF40) 2 parts, defoamer (Defom5300) 0.01 part, anti-sagging agent (wilkinite) 2 parts, pigment (lithopone) 0.1 part, filler (GL ground limestone) 6 parts joins in 35 parts of epoxy resin (bisphenol A type epoxy resin E51) and 40 parts of mixed solvents, stir, obtain salic epoxy resin composition, then under agitation 15 of above-mentioned gained parts of polyaniline zinc powder scales are added wherein, carry out being ground in coating grinding equipment fineness be less than 60 microns after discharging, obtain salic polyaniline-modified zinc powder scale epoxy heavy-duty anticorrosive coating first component,
(3) coating second component is prepared:
In 30 parts of dehydrated alcohols, add 70 parts of amine curing agents (651 polymeric amide), mix to solidifying agent and fully dissolve and namely obtain second component;
(4) coating is prepared:
Namely first component and second component are obtained salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating by weight 1:0.1 mix and blend 1min.
Spray this coating twice, Air drying 15 days at commercial blast process to the four 150mm × 100mm × 1mm45 surface of steel plate of Sa2.5 level, then use weight ratio rosin: 60 DEG C of liquid of paraffin=l:1 carry out edge sealing, carry out coating performance test.The build of paint film is 500 ± 10 μm.
Embodiment 6
A preparation method for salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, comprises the steps:
(1) polyaniline zinc powder scale is prepared: the aniline, 1 that rubs 1 phosphoric acid, 1 sulfuric acid that rubs that rubs mixes and stirs, and constant volume is 1 liter subsequently; Then the Potassium Persulphate that rubs 1 evenly added Doped with Aniline acid solution in 30 minutes, stirs 0.5 hour, obtain product polyaniline at 25 DEG C.According to the mass fraction, by thick to gained polyaniline 1 part and sheet be 0.1 μm, sheet footpath is 10 parts, the zinc powder scale mixing of 10 μm, continue stirring 4 hours, centrifuging and taking precipitates, with distilled water wash, 100 DEG C of dryings are after 1 hour, sieve, obtain bottle-green polyaniline zinc powder scale with mortar grinder.
(2) coating first component is prepared:
(a) first component mixed solvent: 1 part of vinylbenzene is mixed with 1 part of butanone, obtains mixed solvent.
B () is 10 parts, aluminum oxide (particle diameter 1 μm), dispersion agent (Disperbykl06) 0.5 part, flow agent (PerenolF40) 2 parts, defoamer (Defom5300) 0.5 part, anti-sagging agent (wilkinite) 2 parts, pigment (lithopone) 5 parts, filler (GL ground limestone) 15 parts joins in 85 parts of epoxy resin (bisphenol A type epoxy resin E51) and 40 parts of mixed solvents, stir, obtain salic epoxy resin composition, then under agitation 25 of above-mentioned gained parts of polyaniline zinc powder scales are added wherein, carry out being ground in coating grinding equipment fineness be less than 60 microns after discharging, obtain salic polyaniline-modified zinc powder scale epoxy heavy-duty anticorrosive coating first component,
(3) coating second component is prepared:
In 60 parts of dehydrated alcohols, add 40 parts of amine curing agents (651 polymeric amide), mix to solidifying agent and fully dissolve and namely obtain second component;
(4) coating is prepared:
Namely first component and second component are obtained salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating by weight 1:1 mix and blend 5min.
Spray this coating twice, Air drying 15 days at commercial blast process to the four 150mm × 100mm × 1mm45 surface of steel plate of Sa2.5 level, then use weight ratio rosin: 60 DEG C of liquid of paraffin=l:1 carry out edge sealing, carry out coating performance test.The build of paint film is 500 ± 10 μm.
The polyaniline zinc powder scale obtained in above embodiment is sheet structure, and consisting of surface coating layer is polyaniline, and inside is zinc powder scale.
After coating drying, respectively performance test is carried out to the coating of embodiment and comparative example gained.
Cut place corrosion expansion maximum width measures: from the coating sample prepared, select three, and intersect cut until expose ground with special cut pen at coatingsurface, a slice is used for reference in addition.The neutral salt spray test of scratch coatings sample is pressed GB/T1771-91 and is measured.NaCl solution concentration is 3.5wt%, and test temperature is 40 ± 2 DEG C, continuously spraying 500 hours, and after measuring 500 hours salt-fog tests, maximum width is expanded in the corrosion of cut place.
Wear resistance measures: measure by " mensuration-rotation rubber emery wheel method of GB/T1768-2006 paint and varnish wear resistance ".Adopt abrasion test instrument, model center is opened the hole of a diameter 6.35mm, be fixed on abrasion test instrument scratch diskette, according to standard testing, first grind 50 turns, make it to be formed comparatively even curface, powered-down, take out model, erase floating bits gently with writing brush, weigh (accurately to 0.001g).Testing by standard gauge whole counter of setting the tone, when reaching 5000 wear-resisting revolution, stopping at once.Take out model, erase floating bits, weigh, the difference of front and back quality is paint film weightlessness.Test is carried out under fixed temperature and humidity condition.Parallel test three times, the difference of each mean value is not more than 7% of mean value, and result gets its arithmetical av.
Sticking power measures: measure by GB/T1720-1989 paint film adhesion assay method.
Outward appearance: by GB1729-1979 paint film color and outward appearance assay method.
Table 1 embodiment and comparative example gained coating performance evaluation table
Test result is as shown in table 1, and embodiment is compared with corresponding comparative example, and corrosion extension width in cut place obviously narrows, and shows that polyaniline zinc powder scale significantly increases the solidity to corrosion of coating.Embodiment is compared with corresponding comparative example, and shock-resistance significantly improves, and wear weight loss obviously reduces, and shows that adding of aluminium dioxide significantly enhances the shock-resistant of coating and abrasion resistance properties; Experimental result shows, appearance of coat is homogeneous, smooth, and sticking power is excellent.The solidity to corrosion of salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, resistance to erosion abrasiveness are obviously better than conventional epoxy coating, and it really can play the effect of heavy antisepsis in harsh environments.Coating of the present invention has excellent mechanical performance and sticking power, and it is good that sea water resistance washes away abrasiveness, and resistant to sea water perviousness is strong, and the protection life-span is long, the operation of particularly suitable Yu Haiyang heavy anti-corrosion paint.
Claims (7)
1. salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating, is characterized in that, comprises first, second two kinds of components:
First components in mass portion number meter comprises:
Epoxy resin 35 ~ 85 parts, 0.5 ~ 25 part, polyaniline zinc powder scale, 0.1 ~ 10 part, aluminum oxide, pigment 0.1 ~ 5 part, filler 1 ~ 15 part, anti-sagging agent 0.01 ~ 2 part, dispersion agent 0.01 ~ 0.5 part, flow agent 0.01 ~ 2 part, defoamer 0.01 ~ 0.5 part, mixed solvent 5 ~ 40 parts;
Second components in mass portion number meter comprises:
Amine curing agent 40 ~ 90 parts, dehydrated alcohol 10 ~ 60 parts;
The quality proportioning of first component and second component is 1:0.1 ~ 1:1;
The above polyaniline zinc powder scale is sheet structure, and consisting of surface coating layer is polyaniline, and inside is zinc powder scale; Wherein polyaniline is one or more in sulfuric acid doped polyaniline, phosphate-doped polyaniline, perchloric acid doped polyaniline or organic acid doped polyaniline, and the sheet of zinc powder scale is thick is 0.01 ~ 0.3 μm, and sheet footpath is 1 ~ 20 μm, and radius-thickness ratio is greater than 60.
2. salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating according to claim 1, it is characterized in that, the preparation method of described polyaniline zinc powder scale is as follows: by molfraction, get 0.1 ~ 1 part of aniline, 0.2 ~ 2 part of dopant acid, 0.1 ~ 1 part of oxygenant, mixes aniline with dopant acid and stirs, and constant volume makes concentration of aniline be 0.1 ~ 1 mol/L subsequently; Then oxygenant was evenly added Doped with Aniline acid solution in 10 ~ 30 minutes, stir 0.5 ~ 1 hour at-5 DEG C ~ 25 DEG C, obtain product polyaniline; Wherein dopant acid is one or more in sulfuric acid, phosphoric acid, perchloric acid or organic acid; Oxygenant is one or more in ammonium persulphate, hydrogen peroxide, Potassium Persulphate, benzoyl peroxide, iron trichloride, potassium bichromate or potassium permanganate; According to the mass fraction, by gained polyaniline 1 part, the mixing of 0.5 ~ 10 part, zinc powder scale, continues stirring 1 ~ 4 hour, centrifuging and taking precipitates, and with distilled water wash, 80 ~ 100 DEG C of dryings are after 1 ~ 5 hour, with mortar grinder, and sieve, obtain bottle-green polyaniline zinc powder scale.
3. salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating according to claim 1, is characterized in that, described epoxy resin is one or both in bisphenol A type epoxy resin or bisphenol f type epoxy resin.
4. salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating according to claim 1, it is characterized in that, described amine curing agent is the one in fatty amine, aromatic amine, cycloaliphatic amines or amine modified firming agent.
5. salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating according to claim 1, it is characterized in that, described aluminum oxide is α type, and particle diameter is 0.01 ~ 45 μm.
6. salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating according to claim 1, it is characterized in that, described mixed solvent is a kind of mixture in a kind of and propyl carbinol in toluene, dimethylbenzene, vinylbenzene, isopropylcarbinol, the trimethyl carbinol, butanone, pimelinketone.
7. a preparation method for salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating according to claim 1, is characterized in that, comprise the steps:
(1) prepare polyaniline zinc powder scale: by molfraction, get 0.1 ~ 1 part of aniline, 0.2 ~ 2 part of dopant acid, 0.1 ~ 1 part of oxygenant, mixed by aniline and stir with dopant acid, constant volume makes concentration of aniline be 0.1 ~ 1 mol/L subsequently; Then oxygenant was evenly added Doped with Aniline acid solution in 10 ~ 30 minutes, stir 0.5 ~ 1 hour at-5 DEG C ~ 25 DEG C, obtain product polyaniline; Wherein dopant acid is one or more in sulfuric acid, phosphoric acid, perchloric acid or organic acid; Oxygenant is one or more in ammonium persulphate, hydrogen peroxide, Potassium Persulphate, benzoyl peroxide, iron trichloride, potassium bichromate or potassium permanganate; According to the mass fraction, by gained polyaniline 1 part, the mixing of 0.5 ~ 10 part, zinc powder scale, continues stirring 1 ~ 4 hour, centrifuging and taking precipitates, and with distilled water wash, 80 ~ 100 DEG C of dryings are after 1 ~ 5 hour, with mortar grinder, and sieve, obtain bottle-green polyaniline-modified zinc powder scale;
(2) coating first component is prepared:
(a) first component mixed solvent: the one in a kind of and propyl carbinol in toluene, dimethylbenzene, vinylbenzene, isopropylcarbinol, the trimethyl carbinol, butanone, pimelinketone is mixed, a kind of quality wherein in selected toluene, dimethylbenzene, vinylbenzene accounts for 25% ~ 75% of mixed solvent total mass;
B () joins aluminum oxide, dispersion agent, flow agent, defoamer, anti-sagging agent, pigment, filler in the mixed solvent of epoxy resin and step (a) gained, stir, then under agitation step (1) gained polyaniline zinc powder scale is added wherein, carry out being ground in coating grinding equipment fineness be less than 60 microns after discharging, obtain salic polyaniline-modified zinc powder scale epoxy heavy-duty anticorrosive coating first component;
(3) coating second component is prepared:
Be that the amine curing agent of 40 ~ 90 parts mixes with the dehydrated alcohol of 10 ~ 60 parts by mass parts, stir to solidifying agent and dissolve;
(4) coating is prepared:
By first component and second component in mass ratio 1:0.1 ~ 1:1 mix and blend 1 ~ 5min namely obtain salic polyaniline zinc powder scale epoxy heavy-duty anticorrosive coating.
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| CN105505037A (en) * | 2014-09-25 | 2016-04-20 | 国家电网公司 | Electric anti-corrosion coating and preparation method thereof |
| CN109423161A (en) * | 2017-07-18 | 2019-03-05 | 裴红艳 | A kind of waterproof coating material and preparation method thereof for nail shooting pill shell case |
| CN112480780A (en) * | 2020-11-21 | 2021-03-12 | 杨涛涛 | Anticorrosive paint and preparation method and application thereof |
| CN112521790A (en) * | 2020-11-25 | 2021-03-19 | 武汉双虎涂料有限公司 | Modified zinc powder and preparation method and application thereof |
| CN113637393A (en) * | 2021-09-24 | 2021-11-12 | 肇庆市海特复合材料技术研究院 | Composite anticorrosive paint and preparation method thereof |
| CN115584155A (en) * | 2022-10-28 | 2023-01-10 | 华能盐城大丰新能源发电有限责任公司 | Preparation method and application of polyaniline-coated zinc powder |
| CN116200061B (en) * | 2022-12-01 | 2023-11-21 | 上海夏宁新材料科技有限公司 | Graphene-zinc powder composite material and preparation method thereof |
| CN116445078A (en) * | 2023-03-27 | 2023-07-18 | 上海德修化工有限公司 | Chromium-free anti-corrosion coating for automobile fasteners and preparation method thereof |
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