Leather cup rubber material for brake of automobile and preparation method thereof
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A technology of automobile brakes and leather cups, which is applied in the field of synthetic rubber, can solve the problems of reduced sealing performance, poor electrical performance, and poor low temperature resistance, and achieve the effects of improving dispersion, improving comprehensive performance, and good processability
Inactive Publication Date: 2013-05-15
WUHU HENGKUN AUTO PARTS
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[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
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[0024] A kind of automobile brake leather cup sizing material, formula is as follows:
[0025] First, weigh the following raw materials (kg) according to the formula requirements: 40 nitrile rubber, 20 chlorosulfonated polyethylene rubber, 30 EPDM 5962 (Germany Lanxess) 30, 12 fluorine rubber, 4 natural rubber, high wear-resistant carbon Black N330 25, modified white carbon black 12, graphite 3, modified tree ash 9, lithopone 5, quartz sand 5, modified iron tailings slag powder 10, stearic acid 0.7, sulfur 0.7, crosslinking agent TAIC0. 3. Accelerator BPP 0.5, stearic acid 2, zinc oxide 4, ferrocene 0.3, palm wax 1, antioxidant 10351.5, antioxidant RD 1.5, phenyltriethoxysilane 2, propylene glycol sebacate 19.
[0026] The preparation method comprises the following steps:
[0027] (1) Preparation method of modified tree ash:
[0028] Add 1-2% sericin powder of tree ashes weight to tree ashes and mix, soak with 15-20% hydrochloric acid for 1-2 hours, wash with water until...
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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: 35-45 parts of nitrile rubber, 15-25 parts of chlorosulfonated polyethylene rubber, 25-35 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 10-15 parts of fluorine rubber, 3-5 parts of natural rubber,20-30 parts of high abrasion furnace black N330, 10-15 parts of modified white carbon black, 3-4 parts of graphite, 8-10 parts of modified wood ash, 4-6 parts of lithopone, 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 cross-linking agent TAIC, 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 palm wax, 1-2 parts of antioxidant 1035, 1-2 parts of anti-aging agent RD, 2-3 parts of phenyl triethoxysilane and 18-20 parts of propanediol sebacate polyester. 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 brake cup rubber 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 has good ...
Claims
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