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

Wear-resistant polyamidoimide enamelled wire paint preparation method

A wear-resistant polyamide-imide and polyamide-imide technology, applied in the coating and other directions, can solve the problems of the decline of the performance of the enameled wire, the decline of the insulation performance of the enameled wire, and the insulation layer is easily damaged by mechanical damage, so as to achieve no compatibility. Problem, good lubrication effect, the effect of increasing rigidity

Inactive Publication Date: 2015-03-25
DANYANG STAR CHEM
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the enameled wire will be subject to friction and impact during winding, the insulating layer of the enameled wire is susceptible to mechanical damage, resulting in a decrease in the insulation performance of the enameled wire. Therefore, higher requirements are placed on the lubricity and smoothness of the enameled wire surface to achieve Good winding performance and winding performance
At present, the maximum static friction coefficient of the enameled wire coated with ordinary polyamide-imide enameled wire enamel is above 0.120. The higher the friction coefficient, the easier it is to cause the performance of the enameled wire to decline. sex

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wear-resistant polyamidoimide enamelled wire paint preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The preparation method of the wear-resistant polyamide-imide wire enamel of the present embodiment comprises the steps:

[0014] (1) Preparation method of polyamide-imide resin: Take 10 parts of dimethylacetamide, 0.9 parts of 4,4'-diaminodiphenyl ether, 4,4'-(hexafluoroisopropylidene) diphenylamine 0.1 part, 0.9 part of pyromellitic dianhydride, 0.1 part of 4,4'-(hexafluoroisopropylene) diphthalic anhydride, add dimethylacetamide, 4,4'-diaminodiphenyl ether and 4,4'-(hexafluoroisopropylidene)diphenylamine, after dissolving, add pyromellitic dianhydride and 4,4'-(hexafluoroisopropylene)diphthalic anhydride, slowly raise the temperature to 100°C, and stir the reaction to transparent;

[0015] (2) Preparation method of wire enamel: Take 20 parts of the above-mentioned polyamide-imide resin and 5 parts of xylene, and stir evenly to prepare self-lubricating limited imide wire enamel.

Embodiment 2

[0017] The preparation method of the wear-resistant polyamide-imide wire enamel of the present embodiment comprises the steps:

[0018] 1) Preparation method of polyamide-imide resin: Take 10 parts of dimethylacetamide, 0.7 parts of 4,4'-diaminodiphenyl ether, 0.3 parts of 4,4'-(hexafluoroisopropylidene) diphenylamine Parts, 0.7 parts of pyromellitic dianhydride, 0.3 parts of 4,4'-(hexafluoroisopropylene) diphthalic anhydride, dimethylacetamide, 4,4'-diaminodiphenyl ether and 4 , 4'-(hexafluoroisopropylene) diphenylamine, after dissolving, add pyromellitic dianhydride and 4,4'-(hexafluoroisopropylene) diphthalic anhydride, slowly raise the temperature to 100°C, and stir the reaction until transparent;

[0019] (2) Preparation method of wire enamel: Take 20 parts of the above-mentioned polyamide-imide resin and 3 parts of xylene, and stir evenly to prepare self-lubricating limited imide wire enamel.

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

PropertyMeasurementUnit
friction coefficientaaaaaaaaaa
Login to View More

Abstract

The invention relates to a wear resistant polyamidoimide enamelled wire paint preparation method, which comprises the following steps: 1)preparation method of polyamidoimide resin: employing dimethyl acetamide, 4,4'-diaminodiphenyl ether, 4,4'-(hexafluoroisopropylidene)diphenylamine, pyromellitic dianhydride, 4,4'-(hexafluoroisopropylidene)diphthalic anhydride for resin synthesis, adding dimethyl acetamide, 4,4'-diaminodiphenyl ether and 4,4'-(hexafluoroisopropylidene)diphenylamine while stirring, adding pyromellitic dianhydride and 4,4'-(hexafluoroisopropylidene)diphthalic anhydride after dissolving, slowly heating to 100 DEG C, stirring for reacting until color is transparent; and 2)preparation method of the enamelled wire paint: taking polyamidoimide resin and xylene, uniformly stirring to obtain the self-lubricating polyamidoimide enamelled wire paint. According to the invention, a fluorine-containing group is introduced in the polyamidoimide enamelled wire, maximum static friction coefficient of the enamelled wire is reduced, lubrication effect of the produced enamelled wire is good, and the maximum static friction coefficient is about 0.040.

Description

technical field [0001] The invention relates to the preparation of wire enamel, in particular to a preparation method of wear-resistant polyamide-imide wire enamel. Background technique [0002] Enameled wire enamel is an indispensable electrical insulation coating applied to electrical equipment, and is one of the key raw materials for controlling the economic and technical indicators and operating life of electrical equipment. With the development of the times and the economy, higher requirements have been put forward for the temperature resistance level of enameled wire in the fields of military and people's livelihood. [0003] Polyamide-imide varnish is the main raw material for general-purpose high-performance composite coating enamelled round and flat wires. It is a C-class high-temperature-resistant enameled wire varnish with excellent comprehensive performance. It is widely used in traction motors and sealed motors, especially for freezing resistance. Manufacture o...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C09D179/08C08G73/14
CPCC09D179/08C08G73/14
Inventor 张建清张斌张国生李岩杨胜杰张杏荣钱新华姚扎西张芬萍张衡伟
Owner DANYANG STAR CHEM
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