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Saloon car brake pad with composite fibers and preparation method and application thereof

A technology of composite fibers and brake pads, applied in the field of brake pads, can solve problems such as high costs, and achieve the effects of reducing costs, enhancing adhesion, and improving interface connection.

Inactive Publication Date: 2020-09-08
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Brake pads commonly used in the market require lower cost, but brake pads with generally better effects require higher cost

Method used

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  • Saloon car brake pad with composite fibers and preparation method and application thereof

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preparation example Construction

[0036] In the second aspect, the preparation method of the above-mentioned car brake pad with composite fibers, the specific steps are:

[0037] ZnNb 2 o 6 , potassium titanate whiskers, and magnesium sulfate are mixed for wet ball milling to obtain a ball-milled mixture;

[0038] mixing polyacrylonitrile fibers, silicon carbide fibers, sepiolite fibers and rabbit hair with water to obtain a premix, then adding a silane coupling agent for mixing, and drying to obtain a dried mixture;

[0039] mixing the polyhydroxyethyl methacrylate micropowder with the ball-milled mixture and the dried mixture to obtain the final mixture;

[0040] Add the modified oil and the final mixture to the abrasive tool for molding and hot pressing to obtain molded products;

[0041] The surface of the molded product is coated with abrasive, and then vulcanized to eliminate thermal stress to obtain a brake pad.

[0042] In some embodiments of the present invention, the ball milling speed in the bal...

Embodiment 1

[0053] A preparation process for a car brake pad with composite fibers, characterized in that it comprises the following steps:

[0054] S1: Weigh 12 parts of ZnNb by weight percentage 2 o 6 , 8 parts of potassium titanate whiskers and 1 part of magnesium sulfate, using absolute ethanol as a solvent, ball milled for 6 hours, poured into a round dish for drying, and passed through an 80-mesh sieve;

[0055] S2: Weigh 10 parts of polyacrylonitrile fiber, 6 parts of silicon carbide fiber, 3 parts of sepiolite fiber and 1 part of rabbit hair by weight percentage, and use deionized water as a solvent, put it into a mixer and stir for 30 minutes;

[0056] S3: Add 1 part of methyltrichlorosilane coupling agent to the obtained product of S2, continue stirring for 20 minutes, and dry;

[0057] S4: Weigh 45 parts of polyhydroxyethyl methacrylate micropowder by weight percentage, mix it with S1 and S3 results, put it into a mixer and stir for 10 minutes, and the stirring speed is 120r / ...

Embodiment 2

[0063] A preparation process for a car brake pad with composite fibers, characterized in that it comprises the following steps:

[0064] S1: Weigh 16 parts of ZnNb by weight percentage 2 o 6 12 parts of potassium titanate whiskers and 5 parts of magnesium sulfate, using absolute ethanol as a solvent, ball milling for 8 hours, pouring into a round dish to dry, passing through a 200-mesh sieve;

[0065] S2: Weigh 14 parts of polyacrylonitrile fiber, 10 parts of silicon carbide fiber, 5 parts of sepiolite fiber and 3 parts of rabbit hair by weight percentage, and use deionized water as a solvent, put it into a mixer and stir for 60 minutes;

[0066] S3: Add 2 parts of n-octyltrimethoxysilane coupling agent to the obtained product of S2, continue stirring for 40 minutes, and dry;

[0067] S4: Weigh 55 parts of polyhydroxyethyl methacrylate micropowder by weight percentage, mix it with S1 and S3 results, put it into a mixer and stir for 15 minutes, and the stirring speed is 150r / ...

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Abstract

The invention relates to a saloon car brake pad with composite fibers and a preparation method and application thereof. The brake pad is composed of the following substances of, in parts by weight, 45-55 parts of hydroxyethyl methacrylate micro powder, 6-16 parts of ZnNb2O6, 8-12 parts of potassium titanate whiskers, 10-14 parts of polyacrylonitrile fibers, 6-10 parts of silicon carbide fibers, 3-5 parts of sepiolite fibers, 1-3 parts of rabbit hair, 1-5 parts of magnesium sulfate, 1-3 parts of modified oil, 2-4 parts of abrasives, and 1-2 parts of a silane coupling agent. The brake pad is lowin cost, good in buffering performance and abrasion resistance and stable in high-temperature friction coefficient.

Description

technical field [0001] The invention belongs to the technical field of brake pads, and in particular relates to a car brake pad with composite fibers and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] In 1987, Herbert Frood invented the first brake pad, and later the company he founded invented the world's first solidified asbestos brake pad. With people's pursuit of quality of life, cars have gradually become an indispensable item in family life. In the fierce market competition, the safety and reliability of car brakes have become an important selection criterion when people buy cars, and cars The most important thing in braking...

Claims

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Application Information

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IPC IPC(8): F16D69/02C08L33/14C08L33/20C08L89/00C08L91/00C08K13/04C08K7/06C08K7/10C08K3/30C08K7/08C09K3/14
CPCC08K2003/3063C08L33/14C08L2205/035C08L2205/16C09K3/149F16D69/02F16D69/023F16D2200/006F16D2200/0086F16D2250/0023F16D2250/0038C08L33/20C08L89/00C08L91/00C08K13/04C08K7/06C08K7/10C08K3/30C08K7/08
Inventor 蒋汉军孙晓杰刘富豪卢丛生常小军
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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