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Polymer insulation material for carbon brush holder and preparation method thereof

A technology of insulating materials and polymers, applied in the field of polymer insulating materials for carbon brush holders and its preparation, can solve problems such as poor performance, short service life, and easy failures, and achieve enhanced wear resistance and wear resistance Good, the effect of prolonging the service life

Active Publication Date: 2022-05-03
瑞安市瑞鑫电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the prior art that the phenolic resin material modified by glass fiber used in the carbon brush holder is brittle, has poor wear resistance, is prone to failure during use, has poor performance, and has a short service life. Polymer insulation material for carbon brush holder and preparation method thereof

Method used

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  • Polymer insulation material for carbon brush holder and preparation method thereof

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Embodiment 1

[0020] Among them, the modified glass fiber is prepared by the following method: (1) According to the mass ratio of 1:5.5, add aluminum magnesium silicate and water to stir and disperse evenly to obtain a dispersion liquid; (2) Add glass fiber and hexagonal boron nitride to the dispersion In the solution, after stirring and pre-dispersing, add methyl silicone oil and grind and mix for 2 hours to obtain a suspension. The mass ratio of glass fiber, hexagonal boron nitride, dispersion liquid and methyl silicone oil is 8:1:18:2; (3 ) according to the mass ratio of 40:4:1, mix the suspension with dioctyl maleate and 3-(methacryloyloxy)propyltrimethoxysilane, stir and mix for 20min at a speed of 800r / min, and then Put it in a vacuum oven at 68°C, dry it, and crush it to get the modified glass fiber.

[0021] The present invention also proposes a method for preparing a polymer insulating material for a carbon brush holder, comprising the following steps:

[0022] S1. Add the modifie...

Embodiment 2

[0025] A polymer insulating material for carbon brush holder proposed by the present invention comprises the following raw materials in parts by weight: 65 parts of phenolic resin, 20 parts of polyether ether ketone, 24 parts of modified glass fiber, 8 parts of terpene resin, ethylene glycol 6 parts of dimethacrylate, 7 parts of 4-hydroxybenzenesulfonic acid;

[0026] Among them, the modified glass fiber is prepared by the following method: (1) According to the mass ratio of 1:6.5, add aluminum magnesium silicate and water to stir and disperse evenly to obtain a dispersion liquid; (2) Add glass fiber and hexagonal boron nitride to the dispersion In the solution, after stirring and pre-dispersing, add methyl silicone oil for grinding and mixing for 2.5h to obtain a suspension, the mass ratio of glass fiber, hexagonal boron nitride, dispersion liquid and methyl silicone oil is 9.5:1:21:3; ( 3) According to the mass ratio of 45:5.5:2, mix the suspension with dioctyl maleate and 3...

Embodiment 3

[0031] A kind of polymer insulating material for carbon brush frame proposed by the present invention comprises the following raw materials in parts by weight: 70 parts of phenolic resin, 25 parts of polyether ether ketone, 28 parts of modified glass fiber, 12 parts of terpene resin, ethylene glycol 7 parts of dimethacrylate, 8 parts of 4-hydroxybenzenesulfonic acid;

[0032] Among them, the modified glass fiber is prepared by the following method: (1) According to the mass ratio of 1:7.5, add aluminum magnesium silicate and water to stir and disperse evenly to obtain a dispersion liquid; (2) Add glass fiber and hexagonal boron nitride to the dispersion In the solution, after stirring and pre-dispersing, add methyl silicone oil for grinding and mixing for 3 hours to obtain a suspension, the mass ratio of glass fiber, hexagonal boron nitride, dispersion liquid and methyl silicone oil is 11:1:24:4; (3 ) According to the mass ratio of 50:7:3, mix the suspension with dioctyl malea...

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Abstract

The invention belongs to the technical field of polymer materials, in particular to a polymer insulating material for carbon brush holders and a preparation method thereof, which solves the problem that the phenolic resin material modified by glass fiber used in carbon brush holders in the prior art has high brittleness and poor wear resistance , prone to failure during use, poor performance, short service life, etc. The polymer insulating material used for the carbon brush holder includes the following raw materials: phenolic resin, polyether ether ketone, modified glass fiber, terpene resin , Ethylene glycol dimethacrylate, curing agent. The present invention has a scientific formula, rigorous proportioning and simple preparation method. A small amount of special macromolecular material polyetheretherketone is selected to enhance the comprehensive performance of phenolic resin. By adding terpene resin and ethylene glycol dimethacrylate, the performance is greatly improved. Combining compatibility and cohesiveness among various raw materials, the obtained polymer insulating material for carbon brush holder has good electrical insulation, excellent mechanical properties, and also has excellent heat resistance, wear resistance, corrosion resistance and other properties.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polymer insulating material for a carbon brush holder and a preparation method thereof. Background technique [0002] The role of the carbon brush holder is to apply pressure to the carbon brush that is in sliding contact with the surface of the commutator or collector ring through the spring, so that it can conduct current stably between the fixed body and the rotating body. The role of the carbon brush in the motor is to change the direction of the current. Motors are divided into DC motors and AC motors. DC motors are used to change the conductive coil of the rotor, thereby changing the rotor magnetic poles, and then changing the motion of the motor. The carbon brush is used on the commutator or slip ring of the motor. As a sliding contact body for leading and leading current, it has good electrical conductivity, thermal conductivity and lubricating performance, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/06C08L61/16C08L45/00C08K9/06C08K9/04C08K7/14C08K3/38C08K5/103
CPCC08L61/06C08L2201/08C08L2205/03C08L2203/20C08K2003/385C08L61/16C08L45/00C08K9/06C08K9/04C08K7/14C08K3/38C08K5/103
Inventor 潘鸿雷张忠武朱振华陈辉
Owner 瑞安市瑞鑫电器有限公司
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