CN111117423B - Elastic epoxy resin coating and preparation method thereof - Google Patents
Elastic epoxy resin coating and preparation method thereof Download PDFInfo
- Publication number
- CN111117423B CN111117423B CN201911365470.7A CN201911365470A CN111117423B CN 111117423 B CN111117423 B CN 111117423B CN 201911365470 A CN201911365470 A CN 201911365470A CN 111117423 B CN111117423 B CN 111117423B
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- China
- Prior art keywords
- epoxy resin
- coating
- resin
- scale
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000576 coating method Methods 0.000 title claims abstract description 44
- 239000011248 coating agent Substances 0.000 title claims abstract description 43
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 33
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- 239000002904 solvent Substances 0.000 claims abstract description 15
- 229920006334 epoxy coating Polymers 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 6
- -1 ocean Substances 0.000 claims abstract description 5
- 229920001973 fluoroelastomer Polymers 0.000 claims description 25
- 239000003973 paint Substances 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000007822 coupling agent Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 8
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000000049 pigment Substances 0.000 claims description 6
- 229920005749 polyurethane resin Polymers 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 4
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 3
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
- 229910021485 fumed silica Inorganic materials 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 3
- 238000009775 high-speed stirring Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 claims description 2
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 2
- 239000004359 castor oil Substances 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- AUHZEENZYGFFBQ-UHFFFAOYSA-N mesitylene Substances CC1=CC(C)=CC(C)=C1 AUHZEENZYGFFBQ-UHFFFAOYSA-N 0.000 claims 1
- 125000001827 mesitylenyl group Chemical group [H]C1=C(C(*)=C(C([H])=C1C([H])([H])[H])C([H])([H])[H])C([H])([H])[H] 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 4
- 230000000996 additive effect Effects 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 4
- 239000012298 atmosphere Substances 0.000 abstract description 4
- 150000003839 salts Chemical class 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 4
- 239000012752 auxiliary agent Substances 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 15
- 239000000843 powder Substances 0.000 description 9
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- 229920002545 silicone oil Polymers 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005536 corrosion prevention Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- MDQRDWAGHRLBPA-UHFFFAOYSA-N fluoroamine Chemical compound FN MDQRDWAGHRLBPA-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- FYGHSUNMUKGBRK-UHFFFAOYSA-N 1,2,3-trimethylbenzene Chemical compound CC1=CC=CC(C)=C1C FYGHSUNMUKGBRK-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000004842 bisphenol F epoxy resin Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 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 2
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 2
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000005002 finish coating Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- IXQWNVPHFNLUGD-UHFFFAOYSA-N iron titanium Chemical compound [Ti].[Fe] IXQWNVPHFNLUGD-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- FPSFKBGHBCHTOE-UHFFFAOYSA-M sodium 1-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]-4-sulfonaphthalen-2-olate Chemical compound [Na+].O=C1C(N=NC=2C3=CC=CC=C3C(=CC=2O)S([O-])(=O)=O)C(C)=NN1C1=CC=CC=C1 FPSFKBGHBCHTOE-UHFFFAOYSA-M 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/504—Amines containing an atom other than nitrogen belonging to the amine group, carbon and hydrogen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- 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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses an elastic epoxy resin coating and a preparation method thereof. The coating comprises epoxy resin, scales, modified resin, an additive, an auxiliary agent, a solvent and a curing agent, and is mainly used as a concrete anticorrosive coating. Compared with the common epoxy coating, the coating has excellent ductility and elongation at break, has good corrosion resistance, can be widely applied to the protection of concrete structures in various heavy corrosion environments such as acid, alkali, salt, ocean, soil, chemical industry atmosphere and the like, and has excellent protective performance.
Description
Technical Field
The invention relates to the technical field of anticorrosive coatings, in particular to an elastic epoxy resin coating and a preparation method thereof, which can be used as a high-elasticity anticorrosive paint, are widely applied to concrete structure protection in various heavy corrosion environments such as acid, alkali, salt, ocean, soil, chemical industry atmosphere and the like, and have excellent protection performance.
Background
At present, concrete structures still occupy a large proportion in industrial and civil structures due to unique characteristics, but reinforcing steel bars and cement in the concrete structures are particularly easy to corrode under various environments, so that the structural performance is reduced, even the concrete structures are scrapped in advance, and huge losses are caused to enterprises and the society, so that the anti-corrosion work of the concrete structures is very important.
Among the various anticorrosion means, anticorrosion by painting has been the most important, most effective, most convenient and most common method. The coating has better protection effect on structures, facilities and equipment due to the corrosion prevention, because the coating can effectively isolate a corrosive medium from a base material after film forming, and the corrosive medium cannot reach the base material within a certain time.
In the construction process of the concrete structure, due to the reasons of shrinkage, temperature stress, mixing proportion, maintenance conditions, construction quality and the like, cracking often occurs, and after concrete cracks, corrosive media can permeate into the concrete structure along the cracks to severely corrode reinforcing steel bars and the concrete.
At present, a coating anticorrosion system is often adopted for a concrete structure, and an epoxy system is mainly adopted, because the epoxy system anticorrosion paint has good adhesive force and impermeability and excellent corrosion resistance. Although epoxy systems have more advantages, the greatest defects are that the brittleness is higher and the elongation is lower, so that for the corrosion prevention of concrete structures, the great risk exists, because after the concrete cracks, the coating system can crack along with the concrete, so that the coating loses the shielding capability, and media directly permeate into the concrete to form corrosion on the structures.
Disclosure of Invention
In view of the above problems, the present invention provides an elastic epoxy resin coating, which is prepared by adding a modified resin, using a high-elasticity curing agent, and adding an auxiliary agent to improve the elasticity and elongation of an epoxy coating, thereby improving the protection performance of concrete. The elastic epoxy resin coating can be used as a primer, an intermediate coating, a finish coating or a primer-topcoat coating for corrosion prevention of a concrete structure. The coating is mainly used as a concrete anticorrosive coating.
The elastic epoxy resin coating developed by the invention has excellent ductility and elongation at break, and when the elastic epoxy resin coating is used as an anticorrosive coating of a concrete structure, stress can be counteracted in a coating elongation mode after concrete cracks, a complete anticorrosive film is continuously maintained, and a good shield is formed for a medium, so that the elastic epoxy resin coating has positive significance for improving the protection quality of the coating, prolonging the protection time of the coating, saving resources, improving the production efficiency, and promoting national economic construction and corrosion science.
The invention also aims to provide a preparation method of the elastic epoxy resin coating.
The above purpose is realized by the following technical scheme:
according to one aspect of the present invention, there is provided an elastomeric epoxy resin coating comprising, in parts by weight:
wherein the epoxy resin is a resin with an epoxy value of 0.20-0.54. The epoxy resin is one of bisphenol A epoxy resin and bisphenol F epoxy resin.
The modified resin is one or more of fluororubber resin and polyurethane resin. The molecular weight of the fluororubber resin is preferably 1000-10000, and the molecular weight of the polyurethane resin is preferably 400-5000. The fluororubber resin may be a vinylidene fluoride type Fluororubber (FKM), specifically, fluororubber 23 (commonly referred to as "No. 1" in China), fluororubber 26 (commonly referred to as "No. 2" in China), fluororubber 246, or the like.
The scale is one or more of aluminum alloy scale, stainless steel scale and zinc alloy scale. The flake preferably has a diameter-thickness ratio of 40-1000, and the particle size preferably ranges from 1-1000 microns.
The additive is a pigment and/or a filler. Specifically, the inorganic filler can be one or more of talcum powder, mica powder, barium sulfate, barite powder, silica micropowder, wollastonite powder, heavy calcium, light calcium, quartz powder, lithopone, kaolin, ferrophosphorus powder, graphite powder, iron red powder, mica iron oxide powder, titanium dioxide, red powder, zinc phosphate, aluminum tripolyphosphate, iron titanium powder, chrome yellow, chrome red, chrome green, zinc oxide and carbon black. Preferably, the weight part of the additive is 5-1400. More preferably, the weight part is 5 to 400. According to the invention, the elasticity and the elongation of the epoxy coating are improved by adding the modified resin, adopting the high-elastic curing agent and simultaneously assisting with the antirust additive and the auxiliary agent, so that the protection performance of the epoxy coating on concrete is improved.
The defoamer may be a silicone defoamer, which may be, for example, dimethyl silicone oil, and the like.
The coupling agent can be one of titanate coupling agent and silane coupling agent. The weight part of the coupling agent is preferably 0.4-175. More preferably, the coupling agent is 0.4-5 parts by weight.
The anti-settling agent can be one of organic bentonite, gas-phase silicon dioxide and hydrogenated castor oil.
The solvent can be one or more of toluene, xylene, mixed trimethylbenzene, methyl acetate, butyl acetate, acetone, butanone, cyclohexanone, ethylene glycol ethyl ether, ethylene glycol butyl ether, ethylene glycol ethyl ether acetate and dimethyl carbonate. The weight part of the solvent is preferably 50-1000.
The curing agent is NH-containing2The molecular weight of the fluororubber (aminofluororubber) is 5000-150000. Preferably, the curing agent is NH-containing2The molecular weight of the fluororubber is 5000-150000, the fluorine content is not less than 4%, and the active hydrogen equivalent is 20-1000. Containing NH2The fluororubber (F) is a mixture of fluororubbers (F23, F26, F246, F TP, etc.)Adding NH3 at the time of formation, under the action of metal catalyst, grafting amino (-NH2) on side chain or two ends of fluororubber molecular chain by unsaturated bond addition method to synthesize NH-containing2The fluororubber of (1).
According to another aspect of the present invention, there is provided a method for preparing an elastic epoxy resin coating, comprising the steps of:
pouring the solvent into a dissolving tank, uniformly mixing, adding epoxy resin while stirring, and dissolving for 8-72 hours at the temperature of 20-50 ℃ to form a uniform epoxy resin solution; then adding modified resin, pigment, filler and defoaming agent, uniformly dispersing under high-speed stirring, and then grinding to required fineness by a sand mill; then adding an anti-settling agent, a scale and a coupling agent, and uniformly dispersing to obtain a component A;
pouring the solvent into a dissolving tank, uniformly mixing, adding the curing agent into the dissolving tank while stirring, and dissolving to form a uniform curing agent solution, namely the component B. When in use, the component A and the component B are directly mixed.
The invention has the advantages that:
(1) the modified resin is fluororubber resin or polyurethane resin, so that the paint has excellent toughness, an island effect is formed in a paint film, and the toughness of the paint film can be improved; the amino fluorine rubber has excellent toughness, elasticity and elongation at break, the amino fluorine rubber is used as a curing agent, and a three-dimensional space network structure formed by curing the amino fluorine rubber and epoxy resin has very high rotation and bending capabilities, so that the elasticity and elongation at break of the coating are greatly improved, the elongation at break can reach 50-350%, and after the concrete generates microcracks due to various reasons, the coating does not crack, and the protection effect can still be maintained.
(2) The invention can be widely applied to various corrosive environments such as acid, alkali, salt, seawater, soil, chemical industry atmosphere and the like, and has excellent corrosion resistance.
Detailed Description
The invention will be better understood from the following representative examples, which, although given, are intended to include: various modifications, which will be apparent to those skilled in the art, may be made to the disclosed process without departing from the scope of the invention.
Example 1:
the elastic epoxy resin coating comprises the following components in parts by weight:
(1) 100 parts of bisphenol A epoxy resin;
(2) the solvent is dimethylbenzene 25 and butyl acetate 25;
(3) the modified resin is fluororubber 23 resin 15;
(4) aluminum alloy flakes 40;
(5) 1.5 parts of dimethyl silicone oil;
(6) 2.5 of titanate coupling agent;
(7) fumed silica 1.3;
(8) NH-containing molecular weight of 5000-80002The fluororubber curing agent 75 (the fluororubber 23 used for the synthesis of the curing agent) of (1).
Example 2:
the elastic epoxy resin coating comprises the following components in parts by weight:
(1) 100 parts of bisphenol F epoxy resin;
(2) the solvent is methyl acetate 10, cyclohexanone 5 and dimethyl carbonate 40;
(3) the modified resin is polyurethane resin 45;
(4)80 mesh stainless steel flakes 25;
(5) the pigment and the filler are 10 parts of talcum powder, 80 parts of mica powder, 90 parts of titanium dioxide, 15 parts of chrome yellow and 10.5 parts of carbon black;
(6) 2.5 parts of dimethyl silicone oil;
(7) 2.5 of organic bentonite;
(8) NH-containing compound having a molecular weight of 12000-150002The fluororubber curing agent 95 (the fluororubber 246 is used for the composition of the curing agent).
Example 3:
the elastic epoxy resin coating comprises the following components in parts by weight:
(1) 100 parts of bisphenol A epoxy resin;
(2) the solvent is butanone 25, ethylene glycol butyl ether 35;
(3) the modified resin is fluororubber 26 resin 15;
(4) aluminum alloy flakes 40;
(5) barium sulfate 240;
(6) mica powder 40;
(7) 1.5 parts of dimethyl silicone oil;
(8) 2.5 of titanate coupling agent;
(9) fumed silica 1.3;
(10) NH-containing molecular weight of 5000-80002The fluororubber curing agent 75 (the fluororubber 26 is used for the curing agent synthesis).
The specific preparation methods of example 1, example 2 and example 3 are the same. The components are weighed according to the weight ratio of each embodiment, then the component A and the component B are respectively prepared, and when the composition is used, the component A and the component B are directly mixed. Wherein the content of the first and second substances,
preparation of the component A: pouring a solvent into a dissolving tank, uniformly mixing, adding epoxy resin while stirring, and dissolving for 8 hours at 50 ℃ to form a uniform epoxy resin solution; then adding modified resin, pigment, filler and defoaming agent, uniformly dispersing under high-speed stirring, and then grinding to required fineness by a sand mill; then adding the anti-settling agent, the solvent, the scale and the coupling agent, and uniformly dispersing to obtain a component A;
preparation of the component B: pouring the solvent into a dissolving tank, uniformly mixing, adding the amino resin curing agent while stirring, and dissolving for 2 hours at 50 ℃ to form a uniform curing agent solution, namely the component B.
The detection methods of examples 1 to 3 are shown in Table 1, and the specific detection indexes are shown in Table 2.
TABLE 1 detection methods
TABLE 2 specific technical indices of examples 1 to 3
| Example 1 | Example 2 | Example 3 |
| Iron red, smooth and flat | Grey, level and smooth | Grey, level and smooth |
| 135 | 150 | 150 |
| 0.8% of surface dry and 8% of solid dry | 0.6 for surface dry and 6 for solid dry | 0.6 for surface dry and 6 for solid dry |
| 1 | 1 | 1 |
| 1 | 1 | 1 |
| 50 | 50 | 50 |
| 150 | 300 | 300 |
| 30d no change of paint film | 30d no change of paint film | 30d no change of paint film |
| 30d no change of paint film | 30d no change of paint film | 30d no change of paint film |
| 30d no change of paint film | 30d no change of paint film | 30d no change of paint film |
| 30d no change of paint film | 30d no change of paint film | 30d no change of paint film |
| 30d no change of paint film | 30d no change of paint film | 30d no change of paint film |
The elastic epoxy resin coating disclosed by the invention adopts the modified resin and the curing agent, and the proportion of each component is optimized, so that the elasticity and the elongation at break of the coating are greatly improved, and as can be seen from table 2, the elongation at break of the coating can reach 300%. And the coating does not crack when the concrete generates micro cracks, and the protective effect of the coating on the concrete can be still maintained. In addition, as can be seen from table 2, the elastic epoxy resin coating of the present invention has different corrosion resistance, and can be widely used in various corrosive environments such as acid, alkali, salt, seawater, soil, chemical industry atmosphere, and the like.
Claims (8)
1. An elastic epoxy resin coating is characterized by comprising the following components in parts by weight:
wherein the curing agent is NH-containing2The molecular weight of the fluororubber is 5000-150000, the fluorine content is not less than 4%, and the active hydrogen equivalent is 20-1000;
the modified resin is fluororubber resin or polyurethane resin, wherein the molecular weight of the fluororubber resin is 1000-10000, and the molecular weight of the polyurethane resin is 400-5000.
2. The elastic epoxy resin paint according to claim 1, wherein the epoxy resin is a resin having an epoxy value of 0.20 to 0.54.
3. The elastomeric epoxy coating of claim 1, wherein said scale is one or more of aluminum alloy scale, stainless steel scale, and zinc alloy scale.
4. An elastic epoxy resin coating according to claim 3, wherein the scale aspect ratio is 40 to 1000, and the particle size is in the range of 1 to 1000 μm.
5. An elastomeric epoxy resin coating according to claim 1, characterized in that said additives comprise pigments and/or fillers, said additives being in the range of 5 to 400 parts by weight.
6. The elastomeric epoxy coating of claim 1,
the defoamer is a polysiloxane defoamer;
the coupling agent is one of titanate coupling agent and silane coupling agent, and the weight part is 0.4-5;
the anti-settling agent is one of organic bentonite, fumed silica and hydrogenated castor oil.
7. The elastomeric epoxy coating of claim 1, wherein the solvent is one or more of toluene, xylene, mixed mesitylene, methyl acetate, butyl acetate, acetone, methyl ethyl ketone, cyclohexanone, ethylene glycol ethyl ether, ethylene glycol butyl ether, ethylene glycol ethyl ether acetate, and dimethyl carbonate; the weight part of the solvent is 50-1000.
8. A process for preparing an elastomeric epoxy resin coating according to any one of claims 1 to 7, characterized in that it comprises the following steps:
pouring the solvent into a dissolving tank, uniformly mixing, adding epoxy resin while stirring, and dissolving to form epoxy resin solution; then adding modified resin, pigment, filler and defoaming agent, uniformly dispersing under high-speed stirring, and then grinding by a sand mill; then adding an anti-settling agent, a scale and a coupling agent, and uniformly dispersing to obtain a component A;
pouring the solvent into a dissolving tank, uniformly mixing, adding the curing agent into the dissolving tank while stirring, dissolving to form a curing agent solution, namely the component B, and mixing with the component A when in use.
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