CN104312378A - High-temperature resistant solvent-free impregnating varnish and preparation method thereof - Google Patents

High-temperature resistant solvent-free impregnating varnish and preparation method thereof Download PDF

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Publication number
CN104312378A
CN104312378A CN201410526827.6A CN201410526827A CN104312378A CN 104312378 A CN104312378 A CN 104312378A CN 201410526827 A CN201410526827 A CN 201410526827A CN 104312378 A CN104312378 A CN 104312378A
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China
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parts
epoxy
solvent
impregnating varnish
hour
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CN201410526827.6A
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Inventor
段志诚
段照仁
晁明男
陈明生
周伟
方俊
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Luan Micro & Special Motor Co Ltd
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Luan Micro & Special Motor Co Ltd
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Priority to CN201410526827.6A priority Critical patent/CN104312378A/en
Publication of CN104312378A publication Critical patent/CN104312378A/en
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    • 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
    • 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
    • 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
    • C09D7/48—Stabilisers against degradation by oxygen, light or heat
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention discloses high-temperature resistant solvent-free impregnating varnish. The high-temperature resistant solvent-free impregnating varnish is characterized by being prepared from the following raw materials in parts by weight: 53-58 parts of polyimide modified epoxy resin, 25-28 parts of aliphatic polyurethane urethane acrylate, 14-17 parts of polyethylene terephthalate cyclohexane di-methanol ester, 4-6 parts of benzyl dimethylamine, 6-9 parts of trimellitic acid tri-essien ester, 9-11 parts of 1,3-propylene glycol, 12-15 parts of castor oil tri-glycidyl ether, 2-4 parts of aluminum nitride, 1-2 parts of silicon micro-powder, 2-4 parts of Feldspar powder, 0.5-1.0 part of tetrabutyl titanate, 0.6-1.2 part of cobalt naphthenate, 6-7 parts of crystalline flake graphite, 2-3 parts of polyisobutene, 2-3 parts of epoxy castor oil, and 2-3 parts of 2,6-ditertiary butyl-4-methylphenol. The solvent-free impregnating varnish has the characteristics of high temperature resistance, heat stability, electrical performance, mechanical performance and chemical corrosion resistance, is high in proper viscosity and high in adhesion, and can meet the requirement on the solvent-free impregnating varnish nowadays.

Description

A kind of heat-resistant solvent-free immersion paint and preparation method thereof
Technical field
The present invention relates to a kind of paint and preparation method thereof, particularly a kind of heat-resistant solvent-free immersion paint and preparation method thereof.
Background technology
Modern electrical machine is produced and is generally adopted technique of vacuum pressure for dipping electrical.This technique cools after workpiece preliminary drying being removed tide, be placed in vacuum environment, get rid of air and the volatile matter of openpore coil inside, rely in vacuum and paint liquid gravity and coil capillary action, and utilize dry pressurized air or rare gas element, the impregnating varnish liquid removed after vacuum is applied to the effect of certain pressure, make paint liquid rapid permeability and be full of insulation system internal layer.This technique can obtain the paint film of continuous densification, free of pinholes, significant for the reliability improving motor.For implementing the policy of country about energy-saving and emission-reduction, environmental protection low-carbon (LC), the varnished insulation of increasing motor, electrical equipment winding transforms to solvent-free immersion paint gradually by having solvent, less solvent impregnated paint, drying varniss is fast, dipping lacquer number of times is few because self having for solvent-free immersion paint, strong its viscosity simultaneously of moisture resistance is little, heat-resistance index can reach H level (more than 180 DEG C), good mechanical property: the good and quick solidifying of drying property, fugitive constituent are few, cured product is smooth still, after stored longer, the performance still reliable and stable remarkable advantage that waits is widely adopted.But because solvent-free paint liquid proposes requirements at the higher level to package stability, deposit with use procedure in paint fluid viscosity increase, easy condensation is agglomerating, lose beneficial effect, therefore, development one has heat-resisting, electric, satisfactory mechanical property, and the solvent-free immersion paint of excellent storage stability is current study hotspot.
Summary of the invention
The object of this invention is to provide a kind of heat-resistant solvent-free immersion paint and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of heat-resistant solvent-free immersion paint, be made up of the raw material of following weight part: In Epoxy-imide Resin 53-58, aliphatic urethane acrylate 25-28, polycyclohexylene's diformazan alcohol ester 14-17, benzyldimethylamine 4-6, trioctyl trimellitate 6-9, 1, ammediol 9-11, Viscotrol C triglycidyl ether 12-15, aluminium nitride 2-4, silicon powder 1-2, feldspar in powder 2-4, tetrabutyl titanate 0.5-1.0, cobalt naphthenate 0.6-1.2, crystalline flake graphite alkene 6-7, polyisobutene 2-3, epoxy castor oil 2-3, 2, 6-di-tert-butyl-4-methy phenol 2-3,
Described In Epoxy-imide Resin is made up of the raw material of following weight part: bisphenol A type epoxy resin 60-70, polyimide 10-15, trimeric cyanamide 2-3, nano-glass scale 3-5, N-Methyl pyrrolidone 7-9, diaminodiphenylsulfone(DDS) 3-4, phenyltrimethoxysila,e 6-8, Di(dioctylpyrophosphato) ethylene titanate 0.6-1.0, propylene glycol monomethyl ether 13-17, ammonium pentaborate 3-4, preparation method is by propylene glycol monomethyl ether, N-Methyl pyrrolidone drops into and is uniformly mixed with in the reactor of agitator, be heated to 60-80 ° of C, add phenyltrimethoxysila,e again, trimeric cyanamide, nano-glass scale, ammonium pentaborate and Di(dioctylpyrophosphato) ethylene titanate stirring reaction 1.5-2 hour, obtain mixture for subsequent use, bisphenol A type epoxy resin and polyimide are mixed and heated to melting simultaneously, drip after diaminodiphenylsulfone(DDS) to mixture dissolves completely and mix with mixture obtained above, temperature controls at 150-180 ° of C, continue reaction can obtain modification polyimide epoxy after 3-4 hour.
A kind of heat-resistant solvent-free immersion paint of the present invention, be made up of following concrete steps: by trioctyl trimellitate, 1, ammediol, benzyldimethylamine, Viscotrol C triglycidyl ether, polyisobutene, epoxy castor oil, 2, 6-di-tert-butyl-4-methy phenol mixes, be heated to 160-190 ° of C, stirring reaction 0.5-1 hour, add In Epoxy-imide Resin again, aliphatic urethane acrylate, polycyclohexylene's diformazan alcohol ester stirs the liquid mixture forming clear homogeneous, add all the other remaining materials again, stir and continue reaction 2-3 hour, grinding is sieved.
Advantage of the present invention is: the present invention is by used for epoxy resin polyimide modified, solve epoxy resin fragility large, thermal characteristics and the low problem of electrical property, enhance the thermostability of paint, electrical property, the toughness of paint film and excellent mechanical property, the polycyclohexylene's diformazan alcohol ester added has high temperature resistant, the effect of chemically-resistant solvent corrosion, the trioctyl trimellitate added has the effect strengthening paint thermotolerance and weather resistance, the Viscotrol C triglycidyl ether of adding not only has improves system viscosity, strengthen substrate wetting effect, also there is resistance to impact shock, the advantage of good mechanical property.
Solvent-free immersion paint of the present invention has the feature of excellent high temperature resistant, thermostability, electrical property, mechanical property and resistance to chemical attack, and also have suitable viscosity, sticking power is good, meets now to the requirement of solvent-free immersion paint.
specific embodiments
Below by specific examples, the present invention is described in detail.
A kind of heat-resistant solvent-free immersion paint, be made up of the raw material of following weight part (kilogram): In Epoxy-imide Resin 56, aliphatic urethane acrylate 26, polycyclohexylene's diformazan alcohol ester 16, benzyldimethylamine 4, trioctyl trimellitate 7,1, ammediol 10, Viscotrol C triglycidyl ether 14, aluminium nitride 2, silicon powder 1, feldspar in powder 2, tetrabutyl titanate 0.8, cobalt naphthenate 0.7, crystalline flake graphite alkene 6, polyisobutene 2, epoxy castor oil 2,2,6 di tert butyl 4 methyl phenol 3;
Described In Epoxy-imide Resin is made up of the raw material of following weight part (kilogram): bisphenol A type epoxy resin 65, polyimide 14, trimeric cyanamide 3, nano-glass scale 4, N-Methyl pyrrolidone 8, diaminodiphenylsulfone(DDS) 4, phenyltrimethoxysila,e 7, Di(dioctylpyrophosphato) ethylene titanate 0.8, propylene glycol monomethyl ether 15, ammonium pentaborate 3, preparation method is by propylene glycol monomethyl ether, N-Methyl pyrrolidone drops into and is uniformly mixed with in the reactor of agitator, be heated to 60-80 ° of C, add phenyltrimethoxysila,e again, trimeric cyanamide, nano-glass scale, ammonium pentaborate and Di(dioctylpyrophosphato) ethylene titanate stirring reaction 1.5-2 hour, obtain mixture for subsequent use, bisphenol A type epoxy resin and polyimide are mixed and heated to melting simultaneously, drip after diaminodiphenylsulfone(DDS) to mixture dissolves completely and mix with mixture obtained above, temperature controls at 150-180 ° of C, continue reaction can obtain modification polyimide epoxy after 3-4 hour.
A kind of heat-resistant solvent-free immersion paint of the present invention, be made up of following concrete steps: by trioctyl trimellitate, 1, ammediol, benzyldimethylamine, Viscotrol C triglycidyl ether, polyisobutene, epoxy castor oil, 2, 6-di-tert-butyl-4-methy phenol mixes, be heated to 160-190 ° of C, stirring reaction 0.5-1 hour, add In Epoxy-imide Resin again, aliphatic urethane acrylate, polycyclohexylene's diformazan alcohol ester stirs the liquid mixture forming clear homogeneous, add all the other remaining materials again, stir and continue reaction 2-3 hour, grinding is sieved.
Paint temperature classification of the present invention is H level, and hardness is 5H, sticking power (cross-hatching)≤1 grade, and impact strength experiment 50mm, snappiness≤1mm, volume specific resistance is greater than 1 × 10 8Ω, the volume specific resistance after immersion is greater than 1 × 10 12Ω, the cohesive strength after solidification is greater than 35N, and the room temperature storage phase is greater than 6 months.

Claims (2)

1. a heat-resistant solvent-free immersion paint, it is characterized in that, be made up of the raw material of following weight part: In Epoxy-imide Resin 53-58, aliphatic urethane acrylate 25-28, polycyclohexylene's diformazan alcohol ester 14-17, benzyldimethylamine 4-6, trioctyl trimellitate 6-9, 1, ammediol 9-11, Viscotrol C triglycidyl ether 12-15, aluminium nitride 2-4, silicon powder 1-2, feldspar in powder 2-4, tetrabutyl titanate 0.5-1.0, cobalt naphthenate 0.6-1.2, crystalline flake graphite alkene 6-7, polyisobutene 2-3, epoxy castor oil 2-3, 2, 6-di-tert-butyl-4-methy phenol 2-3,
Described In Epoxy-imide Resin is made up of the raw material of following weight part: bisphenol A type epoxy resin 60-70, polyimide 10-15, trimeric cyanamide 2-3, nano-glass scale 3-5, N-Methyl pyrrolidone 7-9, diaminodiphenylsulfone(DDS) 3-4, phenyltrimethoxysila,e 6-8, Di(dioctylpyrophosphato) ethylene titanate 0.6-1.0, propylene glycol monomethyl ether 13-17, ammonium pentaborate 3-4, preparation method is by propylene glycol monomethyl ether, N-Methyl pyrrolidone drops into and is uniformly mixed with in the reactor of agitator, be heated to 60-80 ° of C, add phenyltrimethoxysila,e again, trimeric cyanamide, nano-glass scale, ammonium pentaborate and Di(dioctylpyrophosphato) ethylene titanate stirring reaction 1.5-2 hour, obtain mixture for subsequent use, bisphenol A type epoxy resin and polyimide are mixed and heated to melting simultaneously, drip after diaminodiphenylsulfone(DDS) to mixture dissolves completely and mix with mixture obtained above, temperature controls at 150-180 ° of C, continue reaction can obtain modification polyimide epoxy after 3-4 hour.
2. a kind of heat-resistant solvent-free immersion paint according to claim 1, it is characterized in that, be made up of following concrete steps: by trioctyl trimellitate, 1, ammediol, benzyldimethylamine, Viscotrol C triglycidyl ether, polyisobutene, epoxy castor oil, 2, 6-di-tert-butyl-4-methy phenol mixes, be heated to 160-190 ° of C, stirring reaction 0.5-1 hour, add In Epoxy-imide Resin again, aliphatic urethane acrylate, polycyclohexylene's diformazan alcohol ester stirs the liquid mixture forming clear homogeneous, add all the other remaining materials again, stir and continue reaction 2-3 hour, grinding is sieved.
CN201410526827.6A 2014-10-09 2014-10-09 High-temperature resistant solvent-free impregnating varnish and preparation method thereof Pending CN104312378A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106010224A (en) * 2016-06-14 2016-10-12 河南博业电气材料有限公司 Solvent-free electrician impregnating varnish
CN106752869A (en) * 2016-12-10 2017-05-31 潘赵翔 A kind of antibacterial weather-proof polyurethane coating and preparation method thereof
CN109135552A (en) * 2018-07-05 2019-01-04 常州思宇知识产权运营有限公司 A kind of preparation method of high-strength high temperature-resistant type impregnating varnish
CN111205431A (en) * 2020-02-27 2020-05-29 广州昊毅新材料科技股份有限公司 Polyurethane resin and preparation method and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1097785A (en) * 1993-07-20 1995-01-25 哈尔滨绝缘材料厂 The making method of electric insulation dip varnish without solvent
CN101486826A (en) * 2009-03-05 2009-07-22 株洲时代新材料科技股份有限公司 Epoxy solvent-free impregnating resin and preparation thereof
CN102533059A (en) * 2011-12-21 2012-07-04 株洲时代新材料科技股份有限公司 Solvent-free impregnating varnish and preparation and use methods thereof
CN103910976A (en) * 2014-03-12 2014-07-09 广东普赛特电子科技股份有限公司 Nano-modified resistance welding agent

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1097785A (en) * 1993-07-20 1995-01-25 哈尔滨绝缘材料厂 The making method of electric insulation dip varnish without solvent
CN101486826A (en) * 2009-03-05 2009-07-22 株洲时代新材料科技股份有限公司 Epoxy solvent-free impregnating resin and preparation thereof
CN102533059A (en) * 2011-12-21 2012-07-04 株洲时代新材料科技股份有限公司 Solvent-free impregnating varnish and preparation and use methods thereof
CN103910976A (en) * 2014-03-12 2014-07-09 广东普赛特电子科技股份有限公司 Nano-modified resistance welding agent

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106010224A (en) * 2016-06-14 2016-10-12 河南博业电气材料有限公司 Solvent-free electrician impregnating varnish
CN106752869A (en) * 2016-12-10 2017-05-31 潘赵翔 A kind of antibacterial weather-proof polyurethane coating and preparation method thereof
CN109135552A (en) * 2018-07-05 2019-01-04 常州思宇知识产权运营有限公司 A kind of preparation method of high-strength high temperature-resistant type impregnating varnish
CN111205431A (en) * 2020-02-27 2020-05-29 广州昊毅新材料科技股份有限公司 Polyurethane resin and preparation method and application thereof
CN111205431B (en) * 2020-02-27 2021-10-15 广州昊毅新材料科技股份有限公司 Polyurethane resin and preparation method and application thereof

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