Oil resistant rubber

Abstract

The invention discloses an oil resistant rubber, which contains the following substances in part by weight: nitrile rubber, sulfur, zinc oxide, stearic acid, anti-aging agent RD, anti-aging agent 4010NA, paraffin, carbon black N660, carbon black N330, dibutyl phthalate, calcium carbonate, dibenzothiazyl disulfide, tetramethylthiuram disulfide and tetraethylthiuram disulfide. Compared with the prior art, the oil resistant rubber has the advantages that: the oil resistance of the oil resistant rubber produced by using the rubber formula is less than 8.5 percent, and the oil resistant rubber has good heat resistance and air tightness.

Description

technical field [0001] The invention relates to rubber, in particular to oil-resistant rubber used for oil cylinder gaskets. Background technique [0002] The rubber used in the oil cylinder seals used in normal automobiles has certain requirements on the oil resistance, heat resistance and air tightness of the rubber. The existing rubber often fails to meet the requirements, and its oil resistance can only reach 10%. Contents of the invention [0003] The technical problem to be solved by the invention is to provide oil-resistant rubber with an oil-resistant performance of 8.5%. [0004] The technical solution for solving technical problems of the present invention is: oil-resistant rubber, containing the following substances by weight: [0005] [0006] [0007] In order to enhance oil resistance, polyhexamethylene biguanide hydrochloride can also be added to the rubber, and its weight ratio to nitrile rubber is 1-2:90-100; [0008] The rubber preparation method ...

AI Technical Summary

Problems solved by technology

[0002] The rubber used in the oil cylinder seals used in normal cars has certain requirements on the oil resistance, heat resistance and air tightness of the rubber. The existing rubber often fails to meet the requirements, and its oil resistance can only reach 10%.

Images