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Friction material for brake pad and preparation method of friction material

A technology of friction material and brake pad, applied in the field of friction material for brake pad and its preparation

Inactive Publication Date: 2018-04-24
广西双宸贸易有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventor considers that the frictional stability of the friction material for the brake pad needs to be further improved.

Method used

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  • Friction material for brake pad and preparation method of friction material
  • Friction material for brake pad and preparation method of friction material
  • Friction material for brake pad and preparation method of friction material

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preparation example Construction

[0014] Correspondingly, the present invention also provides a method for preparing a friction material for a brake pad, comprising the following steps: mixing 10-18 parts by weight of barite powder, 5-10 parts by weight of polyether ether ketone, and 1-5 parts by weight of beryllium oxide whiskers 6-12 parts by weight of spherical graphite, 6-12 parts by weight of white vermiculite, 3-9 parts by weight of magnesium oxide, 1-5 parts by weight of cobaltous oxide, 1-5 parts by weight of potassium octatitanate, 10-5 parts by weight of phenolic resin 20 parts by weight, 10 to 20 parts by weight of nitrile rubber, and 15 to 30 parts by weight of halloysite nanotubes are mixed, stirred for 2-3 hours to obtain a uniform mixture; Under the condition of hot pressing at 160°C for 1 hour, heat treatment at 200°C for 5 hours, grinding and spraying to obtain the friction material for brake pads.

[0015] As can be seen from the above scheme, the present invention uses barite powder, polyeth...

Embodiment 1

[0019] 1) First prepare a 0.06mol / L nitric acid solution, then weigh 15-30 parts by weight of halloysite and disperse it into the nitric acid solution to form a mixture. After ultrasonic treatment for 10 hours, transfer it to a hydrothermal reaction kettle for treatment at 120°C 8h, after cooling to room temperature, filter and wash with deionized water, and dry at 110°C for 15h;

[0020] 2) 10 parts by weight of barite powder, 10 parts by weight of polyetheretherketone, 1 part by weight of beryllium oxide whiskers, 12 parts by weight of spherical graphite, 6 parts by weight of white vermiculite, 9 parts by weight of magnesium oxide, and 1 part by weight of cobaltous oxide 5 parts by weight of potassium octatitanate, 10 parts by weight of phenolic resin, 20 parts by weight of nitrile rubber and the halloysite nanotubes prepared above are mixed, and stirred for 2-3h;

[0021] 3) Put the homogeneous mixture obtained in step 2 into a hot-pressing mold and hot-press at 160°C under...

Embodiment 2

[0027] 1) First prepare a 0.06mol / L nitric acid solution, then weigh 15-30 parts by weight of halloysite and disperse it into the nitric acid solution to form a mixture. After ultrasonic treatment for 10 hours, transfer it to a hydrothermal reaction kettle for treatment at 120°C 8h, after cooling to room temperature, filter and wash with deionized water, and dry at 110°C for 15h;

[0028] 2) 18 parts by weight of barite powder, 5 parts by weight of polyether ether ketone, 5 parts by weight of beryllium oxide whiskers, 6 parts by weight of spherical graphite, 12 parts by weight of white vermiculite, 3 parts by weight of magnesium oxide, and 5 parts by weight of cobaltous oxide part, 1 part by weight of potassium octatitanate, 20 parts by weight of phenolic resin, 10 parts by weight of nitrile rubber and the halloysite nanotubes prepared above are mixed, and stirred for 2-3h;

[0029] 3) Put the homogeneous mixture obtained in step 2 into a hot-pressing mold and hot-press at 160...

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Abstract

The invention provides a friction material for a brake pad and a preparation method of the friction material. The friction material is prepared from the following raw materials: 10-18 parts by weightof barite powder, 5-10 parts by weight of polyetheretherketone, 1-5 parts by weight of beryllia whisker, 6-12 parts by weight of spherical graphite, 6-12 parts by weight of white vermiculite, 3-9 parts by weight of magnesium oxide, 1-5 parts by weight of cobalt oxide, 1-5 parts by weight of potassium octatitanate, 10-20 parts by weight of phenolic resin, 10-20 parts by weight of nitrile rubber and15-30 parts by weight of halloysite nanotubes. Compared with the prior art, the halloysite nanotubes have excellent heat dissipation performance, and the polyetheretherketone has excellent mechanicalproperties, chemical properties and tribological properties and shows excellent wear resistance. The components are compounded and interact with each other, and the prepared friction material for thebrake pad has good friction properties and stable friction coefficients.

Description

technical field [0001] The invention relates to the technical field of brake pads, in particular to a friction material for brake pads and a preparation method thereof. Background technique [0002] In recent years, the production and sales volume of China's automobile industry has continued to grow, and China has become a major country in automobile production and sales. The most important safety system on a car is the braking system, and the brake pad is a component that plays a direct role in the entire braking system, which directly affects the reliability of the entire braking system. Brake pads and brake discs rub against each other to generate braking torque, so as to achieve the purpose of deceleration and braking. Brake pads mainly include friction material bonded to the steel back, and the performance of the brake pad mainly depends on the formula and processing technology of the friction material. [0003] High-performance brake materials at home and abroad most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L61/16C08L61/06C08K13/06C08K9/02C08K7/08C08K7/18C08K7/26C08K3/30C09K3/14
CPCC08L9/02C08K2003/3045C08K2201/011C08L61/06C08L2205/02C08L2205/03C09K3/14F16D69/02F16D2200/0052F16D2200/0086C08L61/16C08K13/06C08K9/02C08K7/08C08K7/18C08K7/26C08K3/30
Inventor 周舜宁
Owner 广西双宸贸易有限责任公司
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