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Brake lining for automobile

A technology for brakes and linings, applied to friction linings, mechanical equipment, etc., can solve the problems of poor dispersion, poor strength and wear resistance of brake linings, and achieve the effect of simple preparation process and suitable for large-scale production.

Active Publication Date: 2021-03-26
TONGLU YUXIN AUTOMOBILE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prepared brake linings have poor strength and wear resistance due to the poor dispersion of graphite, coke and flake graphite in the binder

Method used

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  • Brake lining for automobile

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Effect test

Embodiment 1

[0024] A brake lining for automobiles, comprising the composition of the following mass percentages: 8% modified graphene, 8% resin, 10% composite fiber, 3% aramid fiber, 9% modified large flake graphite, 10% modified petroleum coke, Barite 15%, rubber powder 3% and steel fiber 34%.

[0025] The modified graphene is graphene modified by 3-azidopropionic acid grafting. The preparation method is as follows: adding graphene into an aqueous solution of sodium cholate with a concentration of 2wt% to prepare a dispersion liquid, adding 4-propargyloxybenzene tetrafluoroborate, graphene and 4-propargyloxy The mass ratio of diazobenzenetetrafluoroborate is 1:0.4, stirred at 45°C for 8h to obtain 4-propargyloxyphenyl graphene; the 4-propargyloxyphenyl graphene and 3- Azidopropionic acid is added in THPTA, the mass volume ratio of described 4-propargyloxyphenyl graphene and THPTA is 1g / 70ml, adds sodium ascorbate and CuSO 4 , 4-propargyloxydiazobenzenetetrafluoroborate with 3-azidoprop...

Embodiment 2

[0033] A brake lining for automobiles, comprising the composition of the following mass percentages: 10% modified graphene, 10% resin, 8% composite fiber, 5% aramid fiber, 6% modified large flake graphite, 14% modified petroleum coke, Barite 12%, rubber powder 1% and steel fiber 34%.

[0034] The modified graphene is graphene modified by 3-azidopropionic acid grafting. The preparation method is as follows: adding graphene into an aqueous solution of sodium cholate with a concentration of 1% by weight to make a dispersion liquid, adding 4-propargyloxydiazobenzenetetrafluoroborate, the graphene and 4-propargyl The mass ratio of oxydiazobenzenetetrafluoroborate is 1:0.3, stirred at 50°C for 7h to obtain 4-propargyloxyphenyl graphene; the 4-propargyloxyphenyl graphene and Add 3-azidopropionic acid to THPTA, the mass volume ratio of 4-propargyloxyphenyl graphene to THPTA is 1g / 60ml, add sodium ascorbate and CuSO 4 , 4-propargyloxydiazobenzenetetrafluoroborate with 3-azidopropioni...

Embodiment 3

[0042] A brake lining for automobiles, comprising the following composition in mass percent: 10% modified graphene, 10% resin, 10% composite fiber, 3% aramid fiber, 6% modified large flake graphite, 14% modified petroleum coke, Barite 18%, rubber powder 3% and steel fiber 26%.

[0043] The modified graphene is graphene modified by 3-azidopropionic acid grafting. The preparation method is as follows: adding graphene into an aqueous solution of 2wt% sodium cholate to make a dispersion liquid, adding 4-propargyloxydiazobenzenetetrafluoroborate, the graphene and 4-propargyl The mass ratio of oxydiazobenzenetetrafluoroborate is 1:0.5, stirred at 40°C for 9h to obtain 4-propargyloxyphenyl graphene; the 4-propargyloxyphenyl graphene and Add 3-azidopropionic acid to THPTA, the mass volume ratio of 4-propargyloxyphenyl graphene to THPTA is 1g / 80ml, add sodium ascorbate and CuSO 4 , 4-propargyloxydiazobenzenetetrafluoroborate with 3-azidopropionic acid, sodium ascorbate and CuSO 4 Th...

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Abstract

The invention relates to the field of automobiles, and a brake liner for automobiles is disclosed. The brake liner comprises the following raw materials in percentage by weight: 5-10% of modified graphene, 5-10% of resin, 8-12% of composite fiber, 1-5% of aramid fiber, 6-12% of modified flake graphite, 7-14% of modified petroleum coke, 12-18% of barite, 1-5% of rubber powder and that balance of steel fiber. The invention adopts fluorosilane-modified petroleum coke, modified graphene and modified large-scale graphite as fillers to prepare brake liners for automobiles, and the prepared brake liner for automobiles has super abrasion resistance and heat insulation performance, and the preparation process is simple and suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a brake lining for automobiles. Background technique [0002] Brake lining is one of the essential accessories of motor vehicles, which is related to personal safety. Brake linings are mainly composed of three parts: binder, reinforcing material and friction filler. When braking, the brake lining and the brake disc rub against each other, converting the kinetic energy of the car into heat energy, and the temperature of the brake lining and the brake disc rises instantly. In addition, the dynamic friction coefficient of the brake lining is positively related to its braking ability, and a good brake must have a sufficiently high friction coefficient. The brake lining in the prior art is easy to age, has poor friction resistance and has a short service life. [0003] The Chinese patent application No. 201710065190.9 discloses a brake lining for passenger cars, including the following c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/12F16D69/02
Inventor 王煜鹏王哲
Owner TONGLU YUXIN AUTOMOBILE PARTS