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Low-volatilization photocoagulation dipping insulating paint

A technology of impregnating insulation and insulating varnish, applied in the field of insulating varnish, which can solve the problems of prolonging the curing time of impregnating varnish, difficult motor technology, and reducing work efficiency, and achieve the effects of shortening curing time, fast curing, and improving work efficiency

Inactive Publication Date: 2011-04-20
GUANGZHOU BETTER NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process is complicated, and it is difficult for motors with complex structures, and it will prolong the overall curing time of the impregnation paint and reduce work efficiency.

Method used

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  • Low-volatilization photocoagulation dipping insulating paint
  • Low-volatilization photocoagulation dipping insulating paint
  • Low-volatilization photocoagulation dipping insulating paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 (by weight percentage):

[0032] Imine modified unsaturated polyester resin: 60%

[0033] Urethane acrylate prepolymer: 10%

[0034] Diphenylene diperoxide: 2%

[0035] 1-Hydroxycyclohexyl phenyl ketone: 2%

[0036] 1,6-Hexanediol diacrylate: 25.5%

[0037] o-Toluene Hydroquinone 0.05%

[0038] TEGO Wet 505 0.15%

[0039] BYK 307 0.1%

[0040] TEGO Rad 2500 0.2%

Embodiment 2

[0041] Embodiment 2 (by weight percentage):

[0042] Unsaturated polyester resin: 46%

[0043] Epoxy acrylate prepolymer: 14%

[0044] tert-butyl perbenzoate: 1%

[0045] 1-Hydroxycyclohexyl phenyl ketone: 1%

[0046] BP: 0.5%

[0047] Neopentyl glycol dimethacrylate: 22%

[0048] Pentaerythritol tetraacrylate: 15%

[0049] o-Toluene Hydroquinone: 0.05%

[0050]TEGO Wet 505: 0.25%

[0051] Levaslip 435: 0.1%

[0052] TEGO Rad 2500: 0.1%

Embodiment 3

[0053] Embodiment 3 (by weight percentage):

[0054] Unsaturated polyester resin: 30%

[0055] Polyimide acrylate prepolymer: 20%

[0056] Polyester acrylate prepolymer: 10%

[0057] Di-tert-butyl perphthalate: 1%

[0058] Benzoin Dimethyl Ether: 3%

[0059] Propoxylated Trimethylolpropane Triacrylate: 35.2%

[0060] Tert-Butylcatechol: 0.05%

[0061] TEGO Wet 505: 0.3%

[0062] TEGO Flow ZFS 460: 0.15%

[0063] TEGO Rad 2500: 0.3%

[0064] Example effect

[0065] The above-mentioned photocoagulation insulating varnish is firstly cured by ultraviolet light for 5 minutes, and then heated and cured at 150°C / 5h. The various properties are shown in Table 1:

[0066] Table 1. Properties of low-volatile photocondensation impregnating varnishes

[0067]

[0068] The tests of various indicators are carried out according to the provisions of GB / T 15023-1994 "Test Methods for Electrical Insulation Solvent-free Polymerizable Resin Compounds".

[0069] Cured volatile matter:...

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PUM

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Abstract

The invention belongs to the technical field of insulating paint, in particular relates to an insulating paint belonging to the dual-curing field of ultraviolet curing and thermocuring. The invention is applied for motor insulation processing and has the advantages of long storage life, high curing speed, no smell, being convenient in operation, no volatilization of organic matters during curing and the like. Compared with the common dipping paint technology, the dipping technology overcomes the problems of loss and small sagging amount in the baking and solidifying process of the dipping paint; in addition, the dipping technology saves material, improves product quality and lightens environment pollution. The dipping and insulating paint has good thermostability and is suitable for common or vacuum pressure dipping paint for H and C-grade motor and electrical appliances.

Description

technical field [0001] The invention belongs to the technical field of insulating varnishes, in particular to insulating varnishes in the field of dual curing of ultraviolet light curing and thermal curing. Background technique [0002] At present, impregnated insulating coatings generally use heat-curing or self-drying coatings, which mainly penetrate the insulating coating into the gaps of the impregnated parts by dipping, and cure the coating by heating or self-drying, thereby improving the electrical insulation of electrical windings. Sex, thermal conductivity, moisture resistance and heat resistance, improved mechanical strength and chemical resistance stability. The test results prove that the loss is less, and the temperature rise of the motor with a sufficient amount of paint is 13-25°C lower than that of a motor with a small amount of paint. About 1-3 times the life span. It can be seen that the amount of paint on the motor winding is an important aspect of evalua...

Claims

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Application Information

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IPC IPC(8): C09D167/06C09D7/12C09D5/25H02K15/12
Inventor 张杰元邹家桂刘彦坤
Owner GUANGZHOU BETTER NEW MATERIALS
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