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Brake pad having noise reducing function and preparation method of same

A technology of brake pads and functions, applied in the field of brake pads with noise reduction function and its preparation, can solve the problems of damage to the hearing of drivers and passengers, threats to the safety of drivers and passengers, and easy generation of a large number of sparks, so as to reduce thermal deformation and improve Oxidation resistance and wettability, good wear resistance

Inactive Publication Date: 2017-12-22
杭州西湖摩擦材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Braking noise not only causes environmental pollution and damages the hearing of drivers and passengers, but more importantly, it will affect the braking performance, pose a threat to the safety of drivers and passengers, and leave hidden dangers. Potential safety hazards, prone to fire and other problems
[0004] In addition, asbestos in asbestos brake pads is difficult to fully bond with other components in the brake pads, it is easy to peel off, and it is not wear-resistant and has a short service life.

Method used

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  • Brake pad having noise reducing function and preparation method of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A brake pad with a noise reduction function, comprising the following raw materials in parts by weight:

[0039] 10 parts of butyl butylbenzene, 10 parts of modified phenolic resin, 10 parts of styrene-butadiene rubber, 15 parts of nitrile rubber, 6 parts of potassium magnesium titanate flake crystal, 6 parts of polypropylene, 20 parts of flake graphite, 10 parts of boron nitride , 2 parts of binder, 2 parts of feldspar powder, 3 parts of zinc oxide, 10 parts of rubber powder, 2 parts of fluorite powder, 1 part of silicon carbide, 4 parts of glass fiber, and 3 parts of carbon fiber.

[0040] Wherein, the modified phenolic resin is processed as follows: heat 120 parts by weight of phenolic resin to 90°C and then mix with 140 parts by weight of alumina particles, stir, keep the temperature and vacuumize, and degas under vacuum for 3 hours, Stop heating, and add 50 parts by weight of curing agent when the temperature drops to 50°C. The curing agent is 2-methylimidazole, mi...

Embodiment 2

[0049] A brake pad with a noise reduction function, comprising the following raw materials in parts by weight:

[0050] 5 parts of butyl styrene, 5 parts of modified phenolic resin, 5 parts of styrene-butadiene rubber, 10 parts of nitrile rubber, 5 parts of potassium magnesium titanate crystal, 3 parts of polypropylene, 15 parts of flake graphite, 6 parts of boron nitride , 1 part of binder, 1 part of feldspar powder, 0.5 parts of zinc oxide, 5 parts of rubber powder, 1 part of fluorite powder, 0.5 part of silicon carbide, 3 parts of glass fiber, and 2 parts of carbon fiber.

[0051] Wherein, the modified phenolic resin is processed as follows: heat 120 parts by weight of phenolic resin to 90°C and then mix with 140 parts by weight of alumina particles, stir, keep the temperature and vacuumize, and degas under vacuum for 3 hours, Stop heating, and add 50 parts by weight of curing agent when the temperature drops to 50°C. The curing agent is 2-methylimidazole, mix well, add 7 p...

Embodiment 3

[0060] A brake pad with a noise reduction function, comprising the following raw materials in parts by weight:

[0061] 8 parts of butyl styrene, 8 parts of modified phenolic resin, 7 parts of styrene-butadiene rubber, 12 parts of nitrile rubber, 5 parts of potassium magnesium titanate crystal, 4 parts of polypropylene, 16 parts of flake graphite, 8 parts of boron nitride , 1 part of binder, 2 parts of feldspar powder, 2 parts of zinc oxide, 9 parts of rubber powder, 1 part of fluorite powder, 0.5 part of silicon carbide, 3 parts of glass fiber, and 2 parts of carbon fiber.

[0062] Wherein, the modified phenolic resin is processed as follows: heat 120 parts by weight of phenolic resin to 90°C and then mix with 140 parts by weight of alumina particles, stir, keep the temperature and vacuumize, and degas under vacuum for 3 hours, Stop heating, and add 50 parts by weight of curing agent when the temperature drops to 50°C. The curing agent is 2-methylimidazole, mix well, add 7 pa...

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Abstract

The invention relates to the technical field of brake pads, and provides a brake pad having noise reducing function, which includes, by weight, 5-10 parts of butyl-butadiene styrene rubber, 5-10 parts of modified phenolic resin, 5-10 parts of butadiene styrene rubber, 10-15 parts of nitrile butadiene rubber, 5-6 parts of potassium magnesium titanate lamellar crystal, 3-6 parts of polypropylene, 15-20 parts of flake graphite, 6-10 parts of boron nitride, 1-2 parts of a binding agent, 1-2 parts of feldspar powder, 0.5-3 parts of zinc oxide, 5-10 parts of rubber powder, 1-2 parts of fluorite powder, 0.5-1 part of silicon carbide, 3-4 parts of glass fibers, 2-3 parts of carbon fibers, and 4-6 parts of steel fibers. The invention also provides a preparation method of the brake pad having noise reducing function, which includes the steps of mixing and uniformly stirring the raw materials, performing hot pressing, and performing thermal-treatment to the pressed brake pad. The brake pad is wear-resistant and high-temperature-resistant, is not liable to deform, and has noise reducing function.

Description

technical field [0001] The invention relates to the technical field of brake pads, in particular to a brake pad with a noise reduction function and a preparation method thereof. Background technique [0002] Brake pads consist of a steel back and friction material bonded to the steel back. At present, asbestos brake pads are mostly used as brake pad friction materials for vehicles, but asbestos in asbestos brake pads has carcinogenic effect and has a serious impact on people's physical and mental health. When the vehicle is running fast, it is easy to cause the brake pads to be overheated and deformed after braking. Therefore, the brake materials are required to be resistant to high temperatures and not deformed; however, the above-mentioned traditional asbestos brake pads can no longer meet this requirement. It is easy to release toxic gas, strong smell and easy to deform at low temperature. [0003] The most important thing is that the brake pads make harsh noises when t...

Claims

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Application Information

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IPC IPC(8): C09K3/14F16D69/02
CPCC09K3/14F16D69/023
Inventor 沈永生俞云伟方亮
Owner 杭州西湖摩擦材料有限公司
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