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Anhydride-free molecular distilled epoxy VPI (vacuum pressure impregnation) impregnated resin and preparation method thereof

A technology of molecular distillation and resin impregnation, which is applied in the field of anhydride-free molecular distillation epoxy VPI impregnation resin and its preparation, which can solve the problems of high equipment and operation process requirements, easy moisture absorption, etc., and achieve good use manufacturability and strong dilution ability , the effect of simple operation

Active Publication Date: 2014-02-05
SUZHOU JUFENG ELECTRICAL INSULATION SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of existing epoxy acid anhydride VPI impregnated resins that are easy to absorb moisture and have high requirements for equipment and operation technology, and provide a kind of epoxy VPI with stable storage, small thermal dielectric loss factor, and no acid anhydride Impregnated resin

Method used

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  • Anhydride-free molecular distilled epoxy VPI (vacuum pressure impregnation) impregnated resin and preparation method thereof

Examples

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Embodiment 1

[0024] This embodiment provides an anhydride-free molecular distillation epoxy VPI impregnated resin and a preparation method thereof.

[0025] The raw material composition of anhydride-free molecular distillation epoxy VPI impregnating resin is as follows: molecular distillation bisphenol A epoxy resin JF-158: 750g; 3,4-epoxycyclohexane carboxymethyl ester: 250g; silane defoamer: 1.5 g; self-made complex curing agent: 50g.

[0026] The preparation method of self-made complex curing agent is as follows:

[0027] Accurately weigh 60g of zinc neodecanoate, 20g of aluminum acetylacetonate and 20g of 594 boron amine complex into a 150ml three-necked bottle, and slowly raise the temperature; raise the temperature to 105°C±5°C and keep it for 1.5h, then cool down to obtain the curing agent.

[0028] The preparation process of anhydride-free molecular distillation epoxy VPI impregnating resin is as follows: Accurately weigh 750g of molecular distillation bisphenol A epoxy resin (JF-...

Embodiment 2

[0030] This embodiment provides an anhydride-free molecular distillation epoxy VPI impregnated resin and a preparation method thereof.

[0031] The raw material composition of anhydride-free molecular distillation epoxy VPI impregnating resin is as follows: molecular distillation bisphenol F epoxy resin (JF-158-1) 750g; 3,4-epoxy cyclohexane carboxylate methyl ester: 250g; silane defoaming Agent: 1.5g; self-made complex curing agent: 50g.

[0032] The preparation method of self-made complex curing agent is as follows:

[0033] Accurately weigh 90g of zinc caprylate and 36g of triethanolamine into a 150ml three-neck bottle, and slowly raise the temperature; raise the temperature to 100°C±5°C and keep it for 2 hours, then cool down to obtain the curing agent.

[0034] The preparation process of anhydride-free molecular distillation epoxy VPI impregnating resin is as follows: Accurately weigh 750g of molecular distillation bisphenol F epoxy resin (JF-158-1) in a beaker, heat and...

Embodiment 3

[0036] This embodiment provides an anhydride-free molecular distillation epoxy VPI impregnated resin and a preparation method thereof.

[0037] The raw material composition of anhydride-free epoxy VPI impregnating resin is as follows: molecularly distilled bisphenol A epoxy resin (JF-158) 750g; vinyl dioxide cyclohexene: 250g; silane defoamer: 1.5g; self-made complex curing agent : 50g.

[0038] The preparation method of self-made complex curing agent is as follows:

[0039]Accurately weigh 50g of zinc naphthenate, 30g of chromium acetylacetonate and 20g of benzylamine into a 150ml three-neck bottle, and slowly raise the temperature; raise the temperature to 95°C±5°C and keep it for 1 hour, then cool down to obtain the curing agent.

[0040] The preparation process of anhydride-free molecular distillation epoxy VPI impregnating resin is as follows: Accurately weigh 750g of molecular distillation bisphenol A epoxy resin (JF-158) in a beaker, heat and stir, when the temperature...

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Abstract

The invention relates to an anhydride-free molecular distilled epoxy VPI (vacuum pressure impregnation) impregnated resin and a preparation method thereof. The anhydride-free molecular distilled epoxy VPI impregnated resin is prepared from molecular distilled epoxy resin, active diluting agent, curing agent and auxiliaries, wherein the active diluting agent is a cycloaliphatic epoxy active diluting agent, the curing agent is complex formed by salt of metal organic carboxylate and acetylacetone metal salt, and amine substances of boron-amine complex, triethanolamine and dimethyl benzylamine. The VPI impregnated resin cannot be easily damped, can be stored stably, has good electrical and mechanical performances, particularly has tiny thermal state dielectric loss factor, is equivalent to the performance of epoxy anhydride resin, and is a perfect substitute good of the epoxy anhydride VPI impregnated resin.

Description

technical field [0001] The invention relates to impregnating resin materials for motor insulation, in particular to an anhydride-free molecular distillation epoxy VPI impregnating resin and a preparation method thereof. The novel epoxy VPI impregnating resin can be used in the manufacture of high-voltage motors, generators, and the like. Background technique [0002] The vacuum pressure impregnation (VPI) process is the most advanced insulation impregnation treatment technology in the world today. It can be used to manufacture air gap-free insulation, so that the coil insulation components have good continuity and thermal conductivity, and excellent moisture resistance, thereby improving the technical economy of the motor. indicators and operational reliability. [0003] VPI impregnating resin is one of the key materials to realize vacuum pressure impregnation insulation treatment process. At present, there are three types of VPI impregnating resins mainly used at home and ...

Claims

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Application Information

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IPC IPC(8): C08G59/20C08G59/56
Inventor 夏宇徐伟红郭胜智方晓明胡兆楠汝国兴
Owner SUZHOU JUFENG ELECTRICAL INSULATION SYST
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