CN107011746A - A kind of transformer high-temperature resistant coating and preparation method thereof - Google Patents
A kind of transformer high-temperature resistant coating and preparation method thereof Download PDFInfo
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- CN107011746A CN107011746A CN201710438010.7A CN201710438010A CN107011746A CN 107011746 A CN107011746 A CN 107011746A CN 201710438010 A CN201710438010 A CN 201710438010A CN 107011746 A CN107011746 A CN 107011746A
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- 238000000576 coating method Methods 0.000 title claims abstract description 48
- 239000011248 coating agent Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 69
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002270 dispersing agent Substances 0.000 claims abstract description 17
- 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 claims abstract description 17
- 229910000165 zinc phosphate Inorganic materials 0.000 claims abstract description 17
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010439 graphite Substances 0.000 claims abstract description 16
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 16
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920001567 vinyl ester resin Polymers 0.000 claims abstract description 12
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001928 zirconium oxide Inorganic materials 0.000 claims abstract description 9
- 229910052593 corundum Inorganic materials 0.000 claims description 64
- 239000010431 corundum Substances 0.000 claims description 64
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 20
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 claims description 10
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 claims description 10
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- BSWXAWQTMPECAK-UHFFFAOYSA-N 6,6-diethyloctyl dihydrogen phosphate Chemical class CCC(CC)(CC)CCCCCOP(O)(O)=O BSWXAWQTMPECAK-UHFFFAOYSA-N 0.000 claims description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical group CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 5
- 229920002396 Polyurea Polymers 0.000 claims description 5
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical class [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 5
- 239000001913 cellulose Chemical class 0.000 claims description 5
- 229920002678 cellulose Chemical class 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 150000004665 fatty acids Chemical class 0.000 claims description 5
- 229920001921 poly-methyl-phenyl-siloxane Polymers 0.000 claims description 5
- 229920002401 polyacrylamide Polymers 0.000 claims description 5
- 229920001522 polyglycol ester Polymers 0.000 claims description 5
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical class [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 5
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical class [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 5
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 5
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 5
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- QNVRIHYSUZMSGM-UHFFFAOYSA-N hexan-2-ol Chemical class CCCCC(C)O QNVRIHYSUZMSGM-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 4
- ZTFZSHLWORMEHO-UHFFFAOYSA-A pentaaluminum;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O ZTFZSHLWORMEHO-UHFFFAOYSA-A 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003973 paint Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 4
- 229920002907 Guar gum Polymers 0.000 description 3
- 239000000665 guar gum Substances 0.000 description 3
- 229960002154 guar gum Drugs 0.000 description 3
- 235000010417 guar gum Nutrition 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- QXLPXWSKPNOQLE-UHFFFAOYSA-N methylpentynol Chemical class CCC(C)(O)C#C QXLPXWSKPNOQLE-UHFFFAOYSA-N 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- HYHJDTAYSGQLFB-UHFFFAOYSA-K [Pb+3].[O-]P([O-])([O-])=O Chemical compound [Pb+3].[O-]P([O-])([O-])=O HYHJDTAYSGQLFB-UHFFFAOYSA-K 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011241 protective layer Substances 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
- C09D131/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
- C09D7/45—Anti-settling agents
-
- 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
- C09D7/47—Levelling agents
-
- 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
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- 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
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/327—Aluminium phosphate
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of transformer high-temperature resistant coating, belong to technical field of coatings, include the raw material of following parts by weight：80 90 parts of vinyl ester resin, 7 12 parts of trbasic zinc phosphate, 12 14 parts of titanium dioxide, 15 18 parts of aluminium triphosphate, 69 parts of graphite, 24 30 parts of white fused alumina fine powder, 30 40 parts of white fused alumina Ultramicro-powder, 10 15 parts of Brown Alundum fine powder, 15 20 parts of Brown Alundum Ultramicro-powder, 35 parts of boron powder, 68 parts of zirconium oxide, 12 parts of dispersant, 35 parts of levelling agent, 0.5 1 parts of anti-settling agent；The invention also discloses a kind of preparation method of transformer high-temperature resistant coating；The present invention can effectively high temperature resistant, adhesive force is good, and coating is difficult for drop-off, dry and cracked, and antirust ability is strong.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a high-temperature-resistant coating for a transformer and a preparation method thereof.
Background
The high-temperature resistant coating can be divided into two categories of organic high-temperature resistant coating and inorganic high-temperature resistant coating. The phosphate lead powder coating is an inorganic high-temperature resistant coating. It has the features of heat resistance, disparagement prevention and electric conduction, and has cheap and easily available raw material and very simple preparation process. The coating is commonly used for brushing the polar plate of the high-voltage electrostatic dust collector, and can prolong the service life of the electric dust collector and improve the operation condition. Therefore, the electric dust remover is widely regarded by the electric dust removing departments of cement, metallurgy, electric industry and the like.
The high temperature resistant coating is one of outer space energy-saving heat-insulating coatings, is originated in the world, is an inorganic single component, and adopts a special solution without any peculiar smell. The temperature-resistant range and the high-temperature-resistant heat-insulating coating are only 0.03W/m.K, the heat-resistant range and the high-temperature-resistant heat-insulating coating can effectively inhibit and shield infrared radiation heat and heat conduction, the heat-insulating inhibition efficiency can reach about 90%, the heat radiation and heat loss of high-temperature objects can be inhibited, cold insulation can be effectively carried out on low-temperature objects, cold loss caused by environmental radiation heat can be inhibited, and object condensation can be prevented. The high-temperature resistant coating can also be used as a high-temperature resistant adhesive, can resist the temperature of 1800 ℃ or even higher, can be used as coating materials of ceramics, glass, metal and the like, can also be used as adhesives of ceramics, glass, metal and the like, and is widely applied to the industrial fields of metallurgy, petroleum industry, natural gas exploitation, aerospace and the like.
In the actual production and use process of the transformer, the temperature in the use environment is higher, therefore, when the transformer is actually used, the paint coated on the surface of the transformer is easy to crack and deform due to overhigh temperature, so that the paint falls off, no protective layer is arranged on the surface of the transformer, the service life of the transformer is greatly shortened in the later use process, but in the production process, if maintenance personnel frequently perform operations such as paint brushing and the like, time and labor are wasted, the production cost in the production is greatly improved, and normal production cannot be performed in the time of waiting for the paint to dry; in addition, the existing transformer paint cannot effectively prevent the transformer from rusting.
Therefore, the invention provides a high-temperature resistant coating for a transformer and a preparation method thereof, which can effectively resist high temperature, prevent the problems of drying crack and the like in a high-temperature environment and greatly improve the production efficiency.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a high-temperature-resistant coating for a transformer and a preparation method thereof, wherein the high-temperature-resistant coating has the advantages of effective high temperature resistance, good adhesive force, difficult shedding and cracking of the coating and strong antirust capability.
The invention provides a high-temperature-resistant coating for a transformer, which comprises the following raw materials in parts by weight:
80-90 parts of vinyl ester resin, 7-12 parts of zinc phosphate, 12-14 parts of titanium dioxide, 15-18 parts of aluminum tripolyphosphate, 6-9 parts of graphite, 24-30 parts of white corundum fine powder, 30-40 parts of white corundum superfine powder, 10-15 parts of brown corundum fine powder, 15-20 parts of brown corundum superfine powder, 3-5 parts of boron powder, 6-8 parts of zirconium oxide, 1-2 parts of dispersing agent, 3-5 parts of leveling agent and 0.5-1 part of anti-settling agent.
Preferably, the mesh number of the white corundum fine powder and the brown corundum fine powder is 200-400 meshes, the mesh number of the white corundum ultrafine powder and the brown corundum ultrafine powder is 400-600 meshes, and the mesh number of the zinc phosphate, the titanium dioxide, the aluminum tripolyphosphate, the graphite, the boron powder and the zirconia is 200-300 meshes.
Preferably, the dispersant is one or a mixture of more than two of sodium tripolyphosphate, sodium hexametaphosphate, sodium pyrophosphate, triethylhexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide, Gule gum and fatty acid polyglycol ester.
Preferably, the leveling agent is one or a mixture of more than two of isophorone, diacetone alcohol and polymethylphenyl siloxane.
Preferably, the anti-settling agent is a solution of modified polyurea in N-methyl pyrrolidone.
The invention also provides a preparation method of the high-temperature-resistant coating, which comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) mixing vinyl ester resin, zinc phosphate, titanium dioxide, aluminum tripolyphosphate, graphite, white corundum fine powder, white corundum superfine powder, brown corundum fine powder, brown corundum superfine powder, boron powder, zirconium oxide, a dispersing agent and a proper amount of water to obtain a mixture, then stirring at a high speed for 20-30min, then adding a leveling agent and an anti-settling agent, and continuing stirring for 5-6 min;
(3) and adjusting the viscosity.
Wherein,
the proper amount of water in the step (2) accounts for 10-20% of the weight of the mixture.
And (3) stirring in the step (2) by a stirrer.
The high-temperature-resistant coating for the transformer and the preparation method thereof can effectively resist high temperature, have good adhesive force, are not easy to fall off and crack, have strong antirust capacity, and have the following specific beneficial effects:
(1) the vinyl ester resin is prepared by performing esterification reaction on epoxy resin and acrylic acid or methacrylic acid, has the characteristics of high hardness, good glossiness, excellent corrosion resistance, heat resistance, excellent electrochemistry and the like, and zirconium oxide has good high-temperature-resistant and fireproof capacity;
(2) phosphate radicals generated by the dissociation of zinc phosphate and aluminum tripolyphosphate can passivate the metal surface, so that the antirust capacity of the coating is provided, and the addition of the white corundum fine powder, the white corundum superfine powder, the brown corundum fine powder and the brown corundum superfine powder enables the coating to have better fireproof capacity, and the particles with different sizes are adopted, so that the mixing is more sufficient;
(3) the addition of the dispersing agent, the leveling agent and the anti-settling agent can increase the performance of the coating, the anti-settling agent can enable the coating to have thixotropy, and the viscosity is greatly improved;
(4) the preparation method is simple and effective, and can effectively and fully mix the raw materials, thereby improving the performance of the coating.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
The high-temperature-resistant coating for the transformer comprises the following raw materials in parts by weight:
80 parts of vinyl ester resin, 7 parts of zinc phosphate, 12 parts of titanium dioxide, 15 parts of aluminum tripolyphosphate, 6 parts of graphite, 24 parts of white corundum fine powder, 30 parts of white corundum superfine powder, 10 parts of brown corundum fine powder, 15 parts of brown corundum superfine powder, 3 parts of boron powder, 6 parts of zirconia, 1 part of dispersing agent, 3 parts of leveling agent and 0.5 part of anti-settling agent.
In this example, the mesh number of the white corundum fine powder and the brown corundum fine powder is 200 meshes, the mesh number of the white corundum ultrafine powder and the brown corundum ultrafine powder is 400 meshes, and the mesh number of the zinc phosphate, the titanium dioxide, the aluminum tripolyphosphate, the graphite, the boron powder and the zirconia is 200 meshes.
In this embodiment, the dispersant is a mixture of sodium tripolyphosphate, sodium hexametaphosphate, sodium pyrophosphate, triethylhexylphosphoric acid, sodium lauryl sulfate, methylpentanol, cellulose derivatives, polyacrylamide, guar gum, and fatty acid polyglycol ester.
In this embodiment, the leveling agent is a mixture of isophorone, diacetone alcohol, and polymethylphenyl siloxane.
In this embodiment, the anti-settling agent is a solution of N-methyl pyrrolidone of modified polyurea.
The embodiment also provides a preparation method of the high-temperature-resistant coating, which comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) mixing vinyl ester resin, zinc phosphate, titanium dioxide, aluminum tripolyphosphate, graphite, white corundum fine powder, white corundum superfine powder, brown corundum fine powder, brown corundum superfine powder, boron powder, zirconium oxide, a dispersing agent and a proper amount of water to obtain a mixture, then stirring at a high speed for 20min, then adding a leveling agent and an anti-settling agent, and continuing stirring for 5 min;
(3) and adjusting the viscosity.
Wherein,
the proper amount of water in the step (2) accounts for 10 percent of the weight of the mixture.
And (3) stirring in the step (2) by a stirrer.
Example 2
The high-temperature-resistant coating for the transformer comprises the following raw materials in parts by weight:
85 parts of vinyl ester resin, 10 parts of zinc phosphate, 13 parts of titanium dioxide, 16 parts of aluminum tripolyphosphate, 8 parts of graphite, 27 parts of white corundum fine powder, 35 parts of white corundum superfine powder, 13 parts of brown corundum fine powder, 17 parts of brown corundum superfine powder, 4 parts of boron powder, 7 parts of zirconia, 1.5 parts of dispersing agent, 4 parts of leveling agent and 0.8 part of anti-settling agent.
In this example, the mesh number of the white corundum fine powder and the brown corundum fine powder is 300 meshes, the mesh number of the white corundum ultrafine powder and the brown corundum ultrafine powder is 500 meshes, and the mesh number of the zinc phosphate, the titanium dioxide, the aluminum tripolyphosphate, the graphite, the boron powder and the zirconia is 200 meshes.
In this embodiment, the dispersant is a mixture of sodium tripolyphosphate, sodium hexametaphosphate, sodium pyrophosphate, triethylhexylphosphoric acid, sodium lauryl sulfate, methylpentanol, cellulose derivatives, polyacrylamide, guar gum, and fatty acid polyglycol ester.
In this embodiment, the leveling agent is a mixture of isophorone, diacetone alcohol, and polymethylphenyl siloxane.
In this embodiment, the anti-settling agent is a solution of N-methyl pyrrolidone of modified polyurea.
The embodiment also provides a preparation method of the high-temperature-resistant coating, which comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) mixing vinyl ester resin, zinc phosphate, titanium dioxide, aluminum tripolyphosphate, graphite, white corundum fine powder, white corundum superfine powder, brown corundum fine powder, brown corundum superfine powder, boron powder, zirconium oxide, a dispersing agent and a proper amount of water to obtain a mixture, then stirring at a high speed for 25min, then adding a leveling agent and an anti-settling agent, and continuing stirring for 5.5 min;
(3) and adjusting the viscosity.
Wherein,
the proper amount of water in the step (2) accounts for 15 percent of the weight of the mixture.
And (3) stirring in the step (2) by a stirrer.
Example 3
The high-temperature-resistant coating for the transformer comprises the following raw materials in parts by weight:
90 parts of vinyl ester resin, 12 parts of zinc phosphate, 14 parts of titanium dioxide, 18 parts of aluminum tripolyphosphate, 9 parts of graphite, 30 parts of white corundum fine powder, 40 parts of white corundum superfine powder, 15 parts of brown corundum fine powder, 20 parts of brown corundum superfine powder, 5 parts of boron powder, 8 parts of zirconia, 2 parts of dispersing agent, 5 parts of leveling agent and 1 part of anti-settling agent.
In this example, the mesh number of the white corundum fine powder and the brown corundum fine powder is 400 meshes, the mesh number of the white corundum ultrafine powder and the brown corundum ultrafine powder is 600 meshes, and the mesh number of the zinc phosphate, the titanium dioxide, the aluminum tripolyphosphate, the graphite, the boron powder and the zirconia is 300 meshes.
In this embodiment, the dispersant is a mixture of sodium tripolyphosphate, sodium hexametaphosphate, sodium pyrophosphate, triethylhexylphosphoric acid, sodium lauryl sulfate, methylpentanol, cellulose derivatives, polyacrylamide, guar gum, and fatty acid polyglycol ester.
In this embodiment, the leveling agent is a mixture of isophorone, diacetone alcohol, and polymethylphenyl siloxane.
In this embodiment, the anti-settling agent is a solution of N-methyl pyrrolidone of modified polyurea.
The embodiment also provides a preparation method of the high-temperature-resistant coating, which comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) mixing vinyl ester resin, zinc phosphate, titanium dioxide, aluminum tripolyphosphate, graphite, white corundum fine powder, white corundum superfine powder, brown corundum fine powder, brown corundum superfine powder, boron powder, zirconium oxide, a dispersing agent and a proper amount of water to obtain a mixture, then stirring at a high speed for 30min, then adding a leveling agent and an anti-settling agent, and continuing stirring for 6 min;
(3) and adjusting the viscosity.
Wherein,
the proper amount of water in the step (2) accounts for 20 percent of the weight of the mixture.
And (3) stirring in the step (2) by a stirrer.
The coating in the embodiment 1-3 is added with a curing agent and coated on steel, the surface is dried, and then the steel is placed in a high-temperature environment of 180 ℃ for more than 12h, and the coating has no crack.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. A high-temperature-resistant coating for a transformer is characterized by comprising the following components in parts by weight: the feed comprises the following raw materials in parts by weight:
80-90 parts of vinyl ester resin, 7-12 parts of zinc phosphate, 12-14 parts of titanium dioxide, 15-18 parts of aluminum tripolyphosphate, 6-9 parts of graphite, 24-30 parts of white corundum fine powder, 30-40 parts of white corundum superfine powder, 10-15 parts of brown corundum fine powder, 15-20 parts of brown corundum superfine powder, 3-5 parts of boron powder, 6-8 parts of zirconium oxide, 1-2 parts of dispersing agent, 3-5 parts of leveling agent and 0.5-1 part of anti-settling agent.
2. The high-temperature-resistant coating for the transformer as claimed in claim 1, wherein: the mesh number of the white corundum fine powder and the brown corundum fine powder is 200-400 meshes, the mesh number of the white corundum superfine powder and the brown corundum superfine powder is 400-600 meshes, and the mesh number of the zinc phosphate, the titanium dioxide, the aluminum tripolyphosphate, the graphite, the boron powder and the zirconia is 200-300 meshes.
3. The high-temperature-resistant coating for the transformer as claimed in claim 1, wherein: the dispersant is one or more of sodium tripolyphosphate, sodium hexametaphosphate, sodium pyrophosphate, triethylhexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide, Gule gum and fatty acid polyglycol ester.
4. The high-temperature-resistant coating for the transformer as claimed in claim 1, wherein: the leveling agent is one or a mixture of more than two of isophorone, diacetone alcohol and polymethylphenyl siloxane.
5. The high-temperature-resistant coating for the transformer as claimed in claim 1, wherein: the anti-settling agent is N-methyl pyrrolidone solution of modified polyurea.
6. The method for preparing a high temperature resistant coating according to any one of claims 1 to 5, wherein: the method comprises the following steps:
(1) weighing the raw materials in parts by weight;
(2) mixing vinyl ester resin, zinc phosphate, titanium dioxide, aluminum tripolyphosphate, graphite, white corundum fine powder, white corundum superfine powder, brown corundum fine powder, brown corundum superfine powder, boron powder, zirconium oxide, a dispersing agent and a proper amount of water to obtain a mixture, then stirring at a high speed for 20-30min, then adding a leveling agent and an anti-settling agent, and continuing stirring for 5-6 min;
(3) and adjusting the viscosity.
7. The method for preparing the high-temperature-resistant coating according to claim 6, wherein the method comprises the following steps: the proper amount of water in the step (2) accounts for 10-20% of the weight of the mixture.
8. The method for preparing the high-temperature-resistant coating according to claim 6, wherein the method comprises the following steps: and (3) stirring in the step (2) by a stirrer.
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