Oil-resistant cold-resistant rubber

Abstract

The invention discloses oil-resistant cold-resistant rubber. The oil-resistant cold-resistant rubber consists of the following components in parts by weight: 30 parts of silicone rubber, 45 parts of epichlorohydrin rubber, 25 parts of nitrile rubber, 50 parts of carbon black, 15 parts of white carbon black, 3.8 parts of plasticizer DOP (dioctyl phthalate), 1.2 parts of anti-ageing agent 4010NA, 1.2 parts of anti-ageing agent RD, 4.5 parts of zinc oxide, 1.2 parts of sulfur, 1.5 parts of accelerant CZ, 2 parts of stearic acid, 18 parts of calcium carbonate and 2.7 parts of coumarone. The oil-resistant cold-resistant rubber disclosed by the invention selects the silicone rubber, the nitrile rubber and the epichlorohydrin rubber as main body raw rubbers, the three rubbers are combined for use, advantages of various rubbers are retained, and defects of the three rubbers are overcome, so that the prepared rubber has excellent cold resistance and oil resistance, smaller compression permanent deformation and good mechanical performance.

Description

Technical field [0001] The invention belongs to the technical field of rubber, and is specifically the following oil- and cold-resistant rubber. Background technique [0002] Due to the special working environment, rubber products not only need to be in long-term contact with oily media but also can work for a long time at low temperatures. The lowest temperature in the eastern part of my country can reach about -50℃, and the lowest temperature from the northern Daxinganling to the Northeast Plain is gradually rising, but the lowest temperature in the Changbai Mountain area can be below -40℃. Rubber parts in these areas are prone to malfunction due to low temperature. The low-temperature and oil-resistance performance is particularly important, especially for the rubber parts of the brake system. The oil resistance of rubber depends on the chemical properties of rubber and oils. The oil can penetrate into the rubber to cause it to swell, which reduces the strength and other mecha...

AI Technical Summary

Problems solved by technology

The oil resistance of rubber depends on the chemical properties of rubber and oil. Oil can penetrate into the rubber to cause swelling, which reduces the strength and other mechanical properties of the rubber.

In addition, the oil medium can also extract soluble compounding agents from the vulcanizate, resulting in a decrease in the performance of the vulcanizate