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Preparation method of brake block material for rubber and plastic mixing motor vehicle

A technology of motor vehicles and brake pads, which is applied in the field of preparation of rubber-plastic hybrid motor vehicle brake pad materials, can solve the problems of brake pad fracture, brake pad cracking, affecting the braking effect and service life of brake pads, and achieve resistance Increased capacity, improved mechanical properties, and improved mechanical strength

Inactive Publication Date: 2018-08-14
SUZHOU FUZHONG PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual use, the brake pads added with rubber compound will "crack" under severe conditions such as heavy load or continuous multiple braking, and even the brake pads will break, which affects the braking effect and service life of the brake pads.

Method used

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  • Preparation method of brake block material for rubber and plastic mixing motor vehicle

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Effect test

Embodiment 1

[0018] A method for preparing a rubber-plastic hybrid vehicle brake pad material, comprising the following steps:

[0019] S1. Modification of carbon fiber: heat the carbon fiber to 800°C in nitrogen containing less than 2% oxygen, then cool to room temperature in nitrogen, then oxidize the carbon fiber in concentrated nitric acid with a concentration of 65% for 2 hours, and then use deionized water After washing to pH = 7, dry, and finally coat and dry with an ethanol solution of 2% silane coupling agent Si 69;

[0020] S2. Preparation of modified calcium carbonate: place calcium oxide in hot distilled water at 70°C in a water bath at 70°C, adjust the speed at 300r / min, and react for 30min to obtain calcium oxide slurry, add distilled water to the calcium oxide slurry, place In a water bath at 15°C, bubble CO at a rate of 200 mL / min. 2 Gas, adjust the rotating speed at 800r / min to obtain carbonized calcium carbonate slurry, heat up the carbonized calcium carbonate slurry to ...

Embodiment 2

[0024] A method for preparing a rubber-plastic hybrid vehicle brake pad material, comprising the following steps:

[0025] S1. Modification of carbon fiber: heat the carbon fiber to 1000°C in nitrogen containing less than 2% oxygen, then cool to room temperature in nitrogen, then oxidize the carbon fiber in concentrated nitric acid with a concentration of 75% for 2 hours, and then use deionized water After washing to pH = 7, dry, and finally coat and dry with an ethanol solution of 2% silane coupling agent KH 550;

[0026] S2. Preparation of modified calcium carbonate: place calcium oxide in hot distilled water at 70°C in a water bath at 70°C, adjust the rotation speed at 500r / min, and react for 30min to obtain calcium oxide slurry, add distilled water to the calcium oxide slurry, place In a water bath at 15°C, bubble CO at a rate of 500 mL / min. 2 Gas, adjust the rotating speed at 800r / min to obtain carbonized calcium carbonate slurry, heat up the carbonized calcium carbonate...

Embodiment 3

[0030] A method for preparing a rubber-plastic hybrid vehicle brake pad material, comprising the following steps:

[0031] S1. Modification of carbon fiber: heat the carbon fiber to 850°C in nitrogen containing less than 2% oxygen, then cool to room temperature in nitrogen, then place the carbon fiber in concentrated nitric acid with a concentration of 72% for 2 hours, and then use deionized water After washing to pH = 7, dry, and finally coat and dry with an ethanol solution of a silane coupling agent with a concentration of 2%, wherein the silane coupling agent is a silane coupling agent Si with a mass ratio of 1:1 69 and silane coupling agent KH 550 mixture;

[0032] S2. Prepare modified calcium carbonate: place calcium oxide in hot distilled water at 70°C in a water bath at 70°C, adjust the speed at 360r / min, and react for 30min to obtain calcium oxide slurry, add distilled water to the calcium oxide slurry, place In a water bath at 15°C, bubble CO at a rate of 300 mL / min...

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Abstract

The invention provides a preparation method of a brake block material for a rubber and plastic mixing motor vehicle. The method comprises the following steps of S1, modifying carbon fiber; S2, preparing modified calcium carbonate; S3, weighing the following ingredients in parts by weight: 5 to 10 parts of nitrile rubber, 20 to 30 parts of phenolic resin, 5 to 9 parts of aramid pulp meal fiber, 8 to 14 parts of needle-shaped wollastonite, 3 to 5 parts of vermiculite powder, 2 to 4 parts of barite powder, 6 to 8 parts of calcium silicate ceramic powder, 3 to 6 parts of barium sulfate, 5 to 8 parts of basalt fiber, 10 to 20 parts of modified carbon fiber and 1 to 2 parts of modified light calcium carbonate; S4, mixing and stirring the ingredients; performing hot pressing shaping on the mixedmaterials by a hot press; finally performing heat treatment. The brake block material for the rubber and plastic mixing motor vehicle has the characteristics of wear resistance, heat resistance and long service life.

Description

technical field [0001] The invention relates to a brake pad for a vehicle, in particular to a method for preparing a rubber-plastic hybrid brake pad material for a motor vehicle. Background technique [0002] Automobile brake pad manufacturing is one of the indispensable industries in automobile manufacturing. In recent years, new technologies have emerged continuously. A brake pad that pursues low noise, shock absorption, braking performance, and good safety has become an urgently needed product in the production of the automobile and automobile industries. Adding rubber compound to the friction material can effectively improve the wear performance of the brake pads and make the braking process more stable and comfortable. However, in actual use, the brake pads added with rubber compound will "crack" under severe conditions such as heavy load or continuous multiple braking, and even the brake pads will break, which affects the braking effect and service life of the brake p...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08L77/10C08L9/02C08K13/06C08K9/02C08K9/00C08K9/04C08K9/06C08K7/06C08K3/26C08K7/10C08K7/26C08K3/30C08K3/34F16D69/02
CPCC08K2003/265C08K2003/3045C08K2201/014C08L61/06C08L2201/08C08L2205/03F16D69/023F16D2200/0052F16D2200/0082C08L77/10C08L9/02C08K13/06C08K9/02C08K9/00C08K9/04C08K9/06C08K7/06C08K3/26C08K7/10C08K7/26C08K3/30C08K3/34
Inventor 史闵新
Owner SUZHOU FUZHONG PLASTIC CO LTD
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