Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Epoxy impregnating varnish and preparation method thereof

A dipping varnish and epoxy technology, applied in the direction of epoxy resin coating, coating, etc., can solve the problems of insufficient temperature resistance and toughness, achieve high mechanical strength, good electrical insulation performance, and improve thermal conductivity.

Inactive Publication Date: 2014-02-05
安徽文峰电子科技集团有限公司
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature resistance grade and toughness of the cured product of this system are insufficient, so it is necessary to modify the epoxy anhydride impregnation paint system, and the cured product of the impregnation paint system can meet the requirements of temperature resistance grade and mechanical properties at the same time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] An epoxy impregnating varnish made from the following raw materials (kg) in parts by weight:

[0012] Epoxy resin (E-51) 35, 2-amino-2-methyl-1-propanol 7, morpholine 2, polyisobutylene 6, m-xylylenediamine 3, maleic anhydride 8, p-benzoquinone 2. Methyl trichlorosilane 5, acrylonitrile 3, fatty alcohol polyoxyethylene ether phosphate 2, vinyl tris(β-methoxyethoxy) silane 5, methyl ethyl ketone peroxide 2, xylene 35, film forming Agent 5.

[0013] The film-forming agent is made of the following raw materials in parts by weight: phenyltriethoxysilane 2, anilinomethyltriethoxysilane 2, ferrocene 2, aluminum nitride 1, nano-attapulgite 2, Epoxy soybean oil 5, morpholine 1, polyisobutylene 4;

[0014] The preparation method is as follows: mixing various materials, heating to 105-110 DEG C, stirring and reacting for 2-3 hours, and grinding to remove slag.

[0015] The preparation method of epoxy dipping paint comprises the following steps: mixing morpholine, polyisobutyle...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an epoxy impregnating varnish and a preparation method thereof. The epoxy impregnating varnish is characterized by being prepared from the following raw materials in parts by weight: 32-35 parts of epoxide resin (E-51), 5-7 parts of 2-amido-2-methyl-1-propyl alcohol, 1-2 parts of morpholine, 4-6 parts of polyisobutylene, 2-3 parts of m-xylylenediamine, 6-8 parts of maleic anhydride, 1-2 parts of para-benzoquinone, 3-5 parts of methyl trichlorosilane, 2-3 parts of acrylonitrile, 1-2 parts of fatty alcohol-polyoxyethylene ether phosphate, 3-5 parts of vinyl tri(beta- methoxyl oxethyl) silane, 1-2 parts of methyl ethyl ketone peroxide, 32-35 parts of dimethylbenzene and 4-5 parts of film-forming agents. The epoxy impregnating varnish disclosed by the invention has the advantages of high temperature and high humidity resistance, good electrical insulation property and high mechanical strength, improves the heat conduction, can work at 200 DEG C for a long time and work at 220 DEG C for a short time and meets the requirements of design.

Description

technical field [0001] The invention belongs to the field of insulating materials, and relates to an impregnating varnish, in particular to an epoxy impregnating varnish and a preparation method thereof. Background technique [0002] Pressure impregnation is generally used in the production of motors, transformers, and wires. The workpiece is pre-baked to remove moisture and then cooled, placed in a vacuum environment to remove internal air and volatiles, relying on the gravity of the paint liquid in the vacuum and applying a certain pressure to make the paint liquid quickly penetrate and fill the inner layer of the insulating structure. This process produces a continuous, dense, pinhole-free paint film. [0003] The existing impregnating paint is made of epoxy resin as the main resin and acid anhydride as the curing agent. However, the temperature resistance grade and toughness of the cured product of this system are insufficient, and the epoxy anhydride impregnation pain...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D163/00C09D123/20C09D7/12C09D5/25
Inventor 徐文利
Owner 安徽文峰电子科技集团有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com