Molybdenum disulfide-modified carbon cloth friction material and preparation method thereof

A friction material, molybdenum disulfide technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of increasing the wear rate of the dual disc, the failure of the braking system, the adhesion of the friction plate, etc., and achieve the dual damage is small, Effect of improved brake friction state and excellent lubricating performance

Active Publication Date: 2013-12-18
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the preparation process, iron powder is added to strengthen the material, which increases the wear rate of the material on the dual disc during braking.
At the same time, the introduction of iron elements may cause the friction plate and the counter plate to bond, resulting in failure of the braking system. These shortcomings limit the application of this type of material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) In terms of parts by mass, weigh 20 parts of nitrile rubber modified phenolic resin, 10 parts of nano molybdenum disulfide, 5 parts of kaolin, 5 parts of diatomite, 5 parts of barium sulfate and 55 parts 6K carbon fiber cloth of T300-6000;

[0026] 2) Dissolve nitrile rubber modified phenolic resin in ethanol and stir evenly to make a uniform ethanol solution of nitrile rubber modified phenolic resin, then add nanometer molybdenum disulfide, kaolin, diatomaceous earth and barium sulfate to nitrile In the rubber-modified phenolic resin ethanol solution, obtain suspension impregnating liquid; Wherein, the nitrile rubber modified phenolic resin mass concentration in the nitrile rubber modified phenolic resin ethanol solution is 15%;

[0027] 3) Clean the 6K carbon fiber cloth of T300-6000, then soak it with nitric acid with a mass concentration of 10% for 5 minutes, then wash it with acetone, then put the 6K carbon fiber cloth of T300-6000 into the vacuum impregnation e...

Embodiment 2

[0031] 1) In terms of parts by mass, weigh 20 parts of boron-modified phenolic resin, 8 parts of nano-molybdenum disulfide, 5 parts of kaolin, 5 parts of quartz powder, 5 parts of barium sulfate and 58 parts of T300-6000 12K carbon fiber cloth;

[0032] 2) Dissolve the boron-modified phenolic resin in ethanol and stir evenly to make a uniform boron-modified phenolic resin ethanol solution, then add nano-molybdenum disulfide, kaolin, quartz powder, and barium sulfate to the boron-modified phenolic resin ethanol solution In, obtain suspension dipping solution; Wherein, the mass concentration of boron-modified phenolic resin in ethanol solution of boron-modified phenolic resin is 11%;

[0033] 3) Clean the 12K carbon fiber cloth of T300-6000, then soak it with nitric acid with a mass concentration of 10% for 5 minutes, and then wash it with acetone, then put the 12K carbon fiber cloth of T300-6000 into the vacuum impregnation equipment, seal it After the vacuum impregnation inst...

Embodiment 3

[0037] 1) In terms of mass fraction, weigh 20 parts of cashew nut shell oil modified phenolic resin, 7 parts of nano-molybdenum disulfide, 5 parts of kaolin, 5 parts of diatomaceous earth, 5 parts of barium sulfate, and 59 parts of T300 -6000 3K carbon fiber cloth;

[0038]2) Dissolve cashew nut shell oil-modified phenolic resin in ethanol and stir evenly to prepare a uniform cashew nut shell oil-modified phenolic ethanol resin solution, and then add nano-molybdenum disulfide, kaolin, diatomaceous earth and barium sulfate to the cashew nut shell In the oil-modified phenolic resin ethanol solution, obtain suspension dipping liquid; Wherein, the mass concentration of cashew nut shell oil modified phenolic alcohol resin in the cashew nut shell oil modified phenolic alcohol resin solution is 17%;

[0039] 3) Soak the T300-6000 3K carbon fiber cloth with 10% nitric acid for 5 minutes, then wash it with acetone, then put the T300-6000 3K carbon fiber cloth into the vacuum impregnati...

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Abstract

The invention discloses a molybdenum disulfide-modified carbon cloth friction material and a preparation method thereof. The method comprises the following steps: firstly, dissolving modified phenolic resin into ethanol to prepare a modified phenolic resin ethanol solution, and then adding nano molybdenum disulfide and padding, so as to prepare suspension impregnation liquid; dipping a piece of carbon cloth for 10-15 minutes by using the suspension impregnation liquid in vacuum impregnation equipment; taking out after the impregnating amount of the resin achieves 15-25%; carrying out thermal curing to obtain the molybdenum disulfide-modified carbon cloth friction material after a solvent volatilizes. The molybdenum disulfide-modified carbon cloth friction material prepared by the method has the characteristics of high dynamic friction coefficient, low attrition rate, and small abrasion on a mating material.

Description

technical field [0001] The invention relates to a carbon cloth friction material, in particular to a carbon cloth friction material modified by molybdenum disulfide and a preparation method thereof. technical background [0002] The wet friction material used in the wet clutch is required to have a series of excellent properties such as high coefficient of dynamic friction and static friction, long service life, smooth shifting and can withstand thermal shock under overload conditions, and little damage to the dual disc during braking. performance. [0003] The Chinese patent application number 200910114345.9 "Carbon Fiber Cloth Composite Friction Material and Its Application in Manufacturing Automobile Aluminum Synchronizer Ring Friction Layer" uses carbon fiber cloth as a reinforcing material, uses high temperature resistant resin as an adhesive, and adds some friction groups Prepared separately. This material is made of aluminum alloy as the base body of the automobile ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/14C09K3/14
Inventor 费杰罗威王洪坤黄剑锋
Owner SHAANXI UNIV OF SCI & TECH
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