Rubber composite containing graphene oxide

Abstract

The invention relates to a rubber composite containing graphene oxide. The rubber composite is characterized by comprising the following raw materials in parts by weight: 100 parts of chlorosulfonated polyethylene, 10-15 parts of ethylene-vinyl acetate rubber (EVM), 20-25 parts of hydrogenated butadiene-acrylonitrile rubber (HNBR), 0.5-5 parts of graphene oxide, 30-70 parts of hard carbon black with mean grain size of 15-25nm, 1-10 parts of dioctyl sebacate (DOS), 3-6 parts of zinc oxide, 3-6 parts of stearic acid, 0.5-4 parts of N,N-nickel dibutyl dithiocarbamate, 1-4 parts of dipentamethylenethiuram hexasulfide, 0.5-4 parts of PbO and 1-6 parts of insoluble sulfur. The rubber composite has the beneficial effects that by using the chlorosulfonated polyethylene, EVM and HNBR with low acrylonitrile content simultaneously, the rubber composite perfectly balances fuel oil resistance and low temperature resistance, distorts 2000 cycles under the low temperature condition of minus 55 DEG C, is free of cracks and distortion on the surface, and is suitable for alpine and low-temperature regions.

Description

technical field [0001] The invention relates to a rubber composite material containing graphene oxide. Background technique [0002] The areas with the greatest stress of radial tires are the tire shoulder and bead area, especially when the overload is serious, the bead not only bears internal pressure stress, braking torque, sideslip and centrifugal force, and rim interference force, but also due to the carcass curtain The lines are arranged radially, the number of cord layers is small, and the carcass is soft, so that the tire is always in a state of repeated bending during driving. Ease of detachment. The bead area had to be greatly reinforced due to the soft sidewalls which would increase instability while driving especially at high speeds. The triangular core rubber (abbreviated as apex rubber) is an important part of the bead. It is located at the upper end of the bead ring and plays the role of filling, positioning and bearing stress. It not only plays an important ...

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Problems solved by technology

[0005] The present invention has designed a kind of rubber compound material containing graphene oxide, and the technical problem that it solves is that in existing rubber nano-composite material used for tire apex rubber, the exfoliation degree of expanded graphite is not enough, and the dispersion of expanded graphite in rubber matrix and its combination with The interfacial adhesion of the matrix is ​​poor, so that the degree of improvement in the modulus and hardness of the composite material is still limited in the case of a large amount of expanded graphite.

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