Ceramic Particle Composite Resin-Based Thermal Decay Resistance Friction Material and Preparation Method

A technology of ceramic particles and friction materials, which is applied to friction linings, chemical instruments and methods, mechanical equipment, etc. Stable coefficient, stable friction coefficient, good thermal stability

Active Publication Date: 2019-07-05
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the friction material will convert a large amount of kinetic energy into heat energy during operation, the surface temperature of the friction material will rise sharply, which will lead to the degradation of organic components such as resin in this type of friction material, thereby causing the friction material coefficient to drop sharply. Reduced braking efficiency, the so-called "thermal fade" phenomenon, poses a safety hazard to drivers

Method used

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  • Ceramic Particle Composite Resin-Based Thermal Decay Resistance Friction Material and Preparation Method
  • Ceramic Particle Composite Resin-Based Thermal Decay Resistance Friction Material and Preparation Method
  • Ceramic Particle Composite Resin-Based Thermal Decay Resistance Friction Material and Preparation Method

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Effect test

Embodiment 1

[0032] Cashew nut shell oil modified phenolic resin was selected as the binder, and its mass fraction was 35%; aramid fiber and glass fiber were mixed as the reinforcing component, and the mass fractions of the two were 5% and 5% respectively; barite As a space filler to reduce production costs, its mass fraction is 40%; add 5% aluminum powder to increase the overall thermal conductivity of the material; add 5% graphite to reduce the wear of ceramic particles on the pair; add 5% vermiculite It is used to reduce the noise that may be generated during the friction process of the material. Then put the above components in a high-speed mixer and mix them for 3 minutes to form evenly mixed resin-based friction material powder. Choose irregular silicon oxide ceramic particles as reinforced ceramics, first sieve the ceramic particles, select particles between 1-1.5mm, the amount of ceramic particles is related to the amount of resin, add 60g of ceramic particles (ceramic particles) p...

Embodiment 2

[0037]The nitrile rubber modified phenolic resin is selected as the binder, and its mass fraction is 30%; the mixture of chopped carbon fiber and glass fiber is selected as the reinforcing component, and the mass fractions of the two are 5% and 5% respectively; silica fume Stone is used as a space filler with a mass fraction of 30%; 5% aluminum powder and 5% copper powder are added to increase the overall thermal conductivity of the material; 5% graphite and 5% molybdenum disulfide are added to improve the lubrication of the material The effect is to reduce the wear of the material on the pair; add 10% vermiculite to reduce the noise that the material may produce during the friction process. Then put the above components in a high-speed mixer and mix them for 5 minutes to form evenly mixed resin-based friction material powder. Select spherical alumina ceramic particles as composite ceramics, sieve the ceramic particles, select particles between 1.5-2mm, the amount of ceramic p...

Embodiment 3

[0042] Cashew nut shell oil modified phenolic resin was selected as the binder with a mass fraction of 10%; a mixture of chopped carbon fibers and carbon nanotubes was selected as a reinforcing component, and the mass fractions of the two were 5% and 5% respectively; silicon Limestone is used as a space filler with a mass fraction of 50%; 5% aluminum powder and 5% copper powder are added to increase the overall thermal conductivity of the material; 5% graphite and 5% molybdenum disulfide are added to improve material lubrication Sex; add 10% vermiculite to reduce the noise that the material may produce during friction. Then put the above components in a high-speed mixer and mix them for 5 minutes to form evenly mixed resin-based friction material powder. Choose irregular alumina ceramic and silica ceramic hybrid particles as composite ceramics, sieve the ceramic particles, select 2mm particles, the amount of ceramic particles depends on the amount of resin, add 30g of the abov...

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Abstract

The invention provides a novel ceramic particle composite resin-based heat-resistance recession friction material comprising a resin-based friction material base body and ceramic particles; the resin-based friction material base body comprises the following components: a binder, an enhancing component, a friction modifier and filler; the particle diameters of the ceramic particles are 1.0-5.0mm. The invention also provides a preparation method of the novel ceramic particle composite resin-based heat-resistance recession friction material. The method comprises the following steps: uniformly missing the components of resin-based friction material powder at a ratio, adding the ceramic particles, uniformly mixing, performing hot press molding, and performing thermal treatment to obtain the novel ceramic particle composite resin-based heat-resistance recession friction material. The novel ceramic particle composite resin-based heat-resistance recession friction material prepared by using the method has very good machinability, good heat recession resistance, a stable friction factor, relatively low attrition and dual abrasion, and the like.

Description

technical field [0001] The invention relates to a heat decay-resistant friction material and a preparation method thereof, in particular to a novel ultra-large particle size ceramic particle composite resin-based friction material and a preparation method thereof. Background technique [0002] Brake pads and clutch linings for vehicles play the roles of transmission, steering, deceleration and braking, etc., which are directly related to driving safety, so they have attracted more and more close attention from automobile manufacturers and friction material industries. Resin-based friction material is currently the most widely used friction material in the auto parts market. It uses resin as a binder to connect other components together. However, since the friction material will convert a large amount of kinetic energy into heat energy during operation, the surface temperature of the friction material will rise sharply, which will lead to the degradation of organic components...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/14C08L9/02C08L77/10C08K13/04C08K7/14C08K7/06C08K7/08C08K7/24C08K3/30C08K3/08C08K3/04C08K3/34C08K3/36C08J5/14F16D69/02C09K3/14
CPCC08K3/04C08K3/08C08K3/22C08K3/30C08K3/34C08K3/36C08K7/06C08K7/08C08K7/14C08K7/24C08K13/04C08K2003/0812C08K2003/085C08K2003/2227C08K2003/2244C08K2003/3009C08K2201/014C08L9/02C08L61/14C09K3/14F16D69/023C08L77/10C08K2003/3045
Inventor 周文龙孙胃涛付雪松
Owner DALIAN UNIV OF TECH
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