Leather cup rubber material for brake of automobile and preparation method thereof

Abstract

The invention discloses a leather cup rubber material for a brake of an automobile. The leather cup rubber material is prepared from the following raw materials in parts by weight: 40-50 parts of nitrile rubber, 20-30 parts of chlorosulfonated polyethylene rubber, 10-30 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 10-15 parts of fluorine rubber, 3-5 parts of natural rubber, 30-40 parts of high abrasion furnace black N330, 15-20 parts of modified white carbon black, 3-4 parts of graphite, 8-10 parts of modified wood ash, 4-6 parts of vermiculite, 4-6 parts of quartz sand, 9-11 parts of modified iron tailing slag powder, 0.5-1 part of stearic acid, 0.5-1 part of sulfur, 0.2-0.4 part of accelerant DM, 0.3-0.6 part of accelerant BPP, 1-2 parts of stearic acid, 2-4 parts of zinc oxide, 0.2-0.4 part of ferrocene, 1-2 parts of lignite wax, 1-2 parts of antioxidant DSTP, 1-2 parts of anti-aging agent RD, 2-3 parts of phenyl triethoxysilane and 16-18 parts of acetyl triethyl citrate. The rubber material disclosed by the invention has excellent ozone resistance, excellent low temperature resistance and heat resistance and is large in operating temperature range and environment-friendly in process, so that the rubber material can be used for preparing various packing materials.

Description

technical field [0001] The invention relates to the field of synthetic rubber, in particular to an automobile rubber brake cup sizing material and a preparation method thereof. Background technique [0002] Rubber cups mainly refer to rubber seals used in hydraulic brake systems, clutch control systems, and booster pump systems of cars, light vehicles, vans, and some trucks to transmit pressure and seal. Rubber cups are also used in household appliances, such as the rubber cups used on the cylinder body of a double-tub washing machine to seal the cylinder body. Rubber cups are one of the rubber products with wide application and important functions in rubber products. [0003] Main features of rubber cups: [0004] 1) The cups in the master cylinder and wheel cylinder must have certain elasticity, compression deformation and wear resistance, so as to ensure that the cups have a certain return ability and sealing ability to transmit hydraulic pressure during use. 2) It ha...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the main material of the production of rubber cups is mostly raw rubber nitrile rubber, which has excellent oil resistance and high wear resistance , good heat resistance, strong adhesion, but its poor low temperature resistance, poor ozone resistance, poor electrical properties, low elasticity, long-term use in low temperature environment, its sealing performance will be greatly reduced, it is necessary to repair the existing skin Improvement of bowl rubber formula