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High-conductivity light carbon brush material and preparation method thereof

A high-conductivity, light-weight technology, applied in brush manufacturing, circuits, current collectors, etc., can solve the problems of expensive graphene oxide and high cost of carbon brush materials, achieve good application prospects, improve compatibility and adhesion ability, the effect of improving the service life

Inactive Publication Date: 2020-03-10
淮安聚友新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But graphene oxide is expensive, and the cost of carbon brush materials is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-conductivity lightweight carbon brush material, comprising the following components in parts by weight: 2 parts of modified rubber solution, 20 parts of epoxy resin, 1 part of nano silicon dioxide, 25 parts of carbon fiber, and 10 parts of steel fiber , 1 part of carbon nanotube, 1 part of lanthanum oxide, 3 parts of silane coupling agent, 40 parts of conductive carbon black; the modified rubber solution is formed by mixing butyl rubber solution, copper powder and chitosan.

[0024] Wherein, the molar ratio of the butyl rubber solution, copper powder and chitosan is 5:3:2.

[0025] The preparation method of the above-mentioned high-conductivity lightweight carbon brush material comprises the following steps:

[0026] Step 1, first stir and mix the modified rubber solution, epoxy resin, and silane coupling agent evenly to make a mixed slurry A;

[0027] Step 2, mixing and stirring nano silicon dioxide, carbon fiber, steel fiber, carbon nanotube and lanthanum oxid...

Embodiment 2

[0031] A high-conductivity lightweight carbon brush material, comprising the following components in parts by weight: 7 parts of modified rubber solution, 35 parts of epoxy resin, 5 parts of nano silicon dioxide, 30 parts of carbon fiber, and 25 parts of steel fiber , 6 parts of carbon nanotubes, 2 parts of lanthanum oxide, 5 parts of silane coupling agent, and 55 parts of conductive carbon black.

[0032] Wherein, the molar ratio of the butyl rubber solution, copper powder and chitosan is 5:3:2.

[0033] The preparation method of the above-mentioned high-conductivity lightweight carbon brush material comprises the following steps:

[0034] Step 1, first stir and mix the modified rubber solution, epoxy resin, and silane coupling agent evenly to make a mixed slurry A;

[0035] Step 2, mixing and stirring nano silicon dioxide, carbon fiber, steel fiber, carbon nanotube and lanthanum oxide evenly to obtain mixed slurry B;

[0036] Step 3, mix the mixed slurry A, mixed slurry B ...

Embodiment 3

[0039] A high-conductivity lightweight carbon brush material, comprising the following components in parts by weight: 9 parts of modified rubber solution, 37 parts of epoxy resin, 8 parts of nano-silica, 38 parts of carbon fiber, and 27 parts of steel fiber , 8 parts of carbon nanotubes, 3 parts of lanthanum oxide, 8 parts of silane coupling agent, 58 parts of conductive carbon black; the modified rubber solution is mixed by butyl rubber solution, copper powder and chitosan.

[0040] Wherein, the molar ratio of the butyl rubber solution, copper powder and chitosan is 5:3:2.

[0041] The preparation method of the above-mentioned high-conductivity lightweight carbon brush material comprises the following steps:

[0042] Step 1, first stir and mix the modified rubber solution, epoxy resin, and silane coupling agent evenly to make a mixed slurry A;

[0043] Step 2, mixing and stirring nano silicon dioxide, carbon fiber, steel fiber, carbon nanotube and lanthanum oxide evenly to o...

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PUM

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Abstract

The invention discloses a high-conductivity light carbon brush material and a preparation method thereof. The carbon brush material comprises the following components in parts by weight: 2-9 parts ofa modified rubber solution, 20-37 parts of epoxy resin, 1-8 parts of nano silicon dioxide, 25-38 parts of carbon fibers, 10-27 parts of steel fibers, 1-8 parts of carbon nanotubes, 1-3 parts of lanthanum oxide, 3-8 parts of a silane coupling agent and 40-58 parts of conductive carbon black, wherein the modified rubber solution is formed by mixing a butyl rubber solution, copper powder and chitosan. The carbon fibers, the steel fibers, the carbon nanotubes, the conductive carbon black and other materials are mixed to serve as a base material, and the modified rubber solution, the epoxy resin and the silane coupling agent are mixed to serve as a composite adhesive, so that the compatibility and the bonding capability of the mixed slurry are improved, the conductivity and the wear resistanceof a carbon brush are ensured, the weight of the carbon brush material is reduced at the same time, and the carbon brush material has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of carbon brush materials, in particular to a high-conductivity lightweight carbon brush material and a preparation method thereof. Background technique [0002] Carbon brushes are a type of conductive sliding contact, which is a device for transferring energy and signals between the fixed part and the drilling part of a motor, generator or other rotating machinery. In the motor, the carbon brush is used on the commutator or the slip ring, as a sliding contact body that leads and leads the current, and has good electrical conductivity, thermal conductivity and lubricating performance. [0003] At present, the material of carbon brush is made of graphite, metal material, resin adhesive and other additives through sintering. Although graphite has good wear resistance, in actual use, there is a problem of easy wear, which is difficult to overcome, and will seriously affect the performance and service life of t...

Claims

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Application Information

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IPC IPC(8): H01R39/20H01R39/26H01R43/12
CPCH01R39/20H01R39/26H01R43/12
Inventor 周兵
Owner 淮安聚友新能源科技有限公司