Rubber-resin blended type paper-based friction material

A paper-based friction material, blending technology, applied in the field of paper-based friction materials, can solve the problems of low coefficient of dynamic friction and static friction

Inactive Publication Date: 2011-05-18
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of low dynamic and static friction coefficients of paper-based friction materials in the prior art, the present invention provides a rubber-resin blended paper-based friction material, which can improve paper-based friction by increasing the mass percentage of rubber components. Coefficients of Kinetic and Static Friction of Materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: Weigh 8.3g of pretreated carbon fiber, 3.0g of aramid fiber, 1.9g of cellulose fiber, 1g of aluminum oxide, 5g of barium sulfate, 8g of diatomite, 2g of zinc oxide, 3g of friction powder, and 1g of graphite , rubber 33g. Dissolve cashew nut shell oil modified phenolic resin into ethanol solvent to make phenolic resin-ethanol solution, mix other raw materials except cashew nut shell oil modified phenolic resin by wet beating to obtain pulp slurry, and pulp slurry in papermaking It is molded on the machine into the base paper of the friction plate, dried at 60-100°C, immersed in the cashew nut shell oil modified phenolic resin-ethanol solution so that the content of the cashew nut shell oil modified phenolic resin in the friction plate base paper reaches 22%, and when the temperature is less than 80 The base paper of the friction material containing the phenolic resin is dried under the condition of ℃, and the base paper of the friction material containing the ...

Embodiment 2

[0016] Embodiment 2: Weigh 5g of treated carbon fiber, 3.0g of aramid fiber, 6.0g of cellulose fiber, 38g of phenolic resin, 0.88g of aluminum oxide, 7.0g of barium sulfate, 5g of kaolin, 2g of zinc oxide, and 3.2g of graphite, Rubber 25g. Dissolve cashew nut shell oil modified phenolic resin into ethanol solvent to make phenolic resin-ethanol solution, mix other raw materials except cashew nut shell oil modified phenolic resin by wet beating to obtain pulp slurry, and pulp slurry in papermaking It is molded on the machine into a friction plate base paper, dried at 60-100°C, immersed in cashew nut shell oil modified phenolic resin-ethanol solution to make the content of cashew nut shell oil modified phenolic resin in the friction plate base paper reach 34%, and when the temperature is less than 80 The base paper of the friction material containing the phenolic resin is dried under the condition of ℃, and the base paper of the friction material containing the phenolic resin is ...

Embodiment 3

[0017] Embodiment 3: Weigh 7g of treated carbon fiber, 0.5g of aramid fiber, 10.0g of cellulose fiber, 20g of phenolic resin, 2.5g of aluminum oxide, 4.0g of barium sulfate, 3g of kaolin, 0.5g of zinc oxide, and 1g of graphite, Rubber 40g. Dissolve cashew nut shell oil modified phenolic resin into ethanol solvent to make phenolic resin-ethanol solution, mix other raw materials except cashew nut shell oil modified phenolic resin by wet beating to obtain pulp slurry, and pulp slurry in papermaking It is molded on the machine into the base paper of the friction plate, dried at 60-100°C, immersed in the cashew nut shell oil modified phenolic resin-ethanol solution so that the content of the cashew nut shell oil modified phenolic resin in the friction plate base paper reaches 22%, and when the temperature is less than 80 The base paper of the friction material containing the phenolic resin is dried under the condition of ℃, and the base paper of the friction material containing the...

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Abstract

The invention discloses a rubber-resin blended type paper-based friction material which is used for solving the technical problem that the existing paper-based friction materials have low kinetic frictional coefficients and static frictional coefficients. The technical scheme is that the friction material provided by the invention is prepared from the following components by weight percent: 18-42% of rubber, 6-20% of fiber, 18-40% of modified phenolic resin and 10-20% of filler. By increasing the weight percentage of the rubber component and optimizing with the other components, when the weight percentage of the rubber component is 18-42%, the kinetic frictional coefficient of the paper-based friction material is increased from (1.2-1.3) to (1.6-1.8), and the static frictional coefficient is increased from (0.16-0.17) to (0.18-0.20).

Description

technical field [0001] The invention relates to a paper-based friction material, in particular to a rubber-resin blended paper-based friction material. Background technique [0002] In some wet clutches, it is often required that the wet friction materials used have high dynamic and static friction coefficients, long service life, smooth shifting and can withstand thermal shock under overload conditions. [0003] Compared with this requirement, general-purpose resin-based paper-based friction materials have stable friction characteristics, low wear rate, good heat resistance, and low wear rate, but their dynamic and static friction coefficients are relatively low. Insufficient torque capacity causes long-term friction or even slipping and burning; the general-purpose mixed rubber cork-based friction material has high dynamic and static friction coefficients, which can meet the torque transmission needs of this type of wet clutch, but there are large wear, material swelling a...

Claims

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Application Information

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IPC IPC(8): C09K3/14D21H17/48D21H17/63
Inventor 傅业伟李贺军齐乐华费杰李克智
Owner NORTHWESTERN POLYTECHNICAL UNIV
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