Low-temperature resistant nitrile butadiene rubber material and preparation method thereof

Abstract

The invention discloses a low-temperature resistant nitrile butadiene rubber material which is prepared from the following raw materials in parts by weight: 40-50 parts of nitrile butadiene rubber, 15-20 parts of natural rubber, 20-30 parts of silicone rubber, 18-22 parts of PVC, 50-60 parts of reinforcing carbon black, 3-5 parts of anti-aging agent, 10-15 parts of bentonite, 5-8 parts of zeolite powder, 7-10 parts of stearic acid, 4-6 parts of diisobutyl phthalate, 2-3 parts of paraffin, 6-10 parts of chlorinated polyethylene, 2-4 parts of diisobutyl phthalate, 1-3 parts of sulfur and 2-4 parts of DTDM. The invention also discloses a preparation method of the low-temperature resistant nitrile butadiene rubber material. The preparation method disclosed by the invention is simple; and the prepared rubber material has perfect aging resistance and low-temperature resistance and can be used in an environment of -45 DEG C while the oil resistance and wear resistance are good, and the service life is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of synthetic rubber, in particular to a low-temperature-resistant nitrile rubber compound and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the automobile industry, consumers' requirements for cars have also begun to develop towards comfort, safety, and economy. The sealing strips on automobiles, shock absorbers, engine crankshaft and other oil seal materials are all rubber materials, but the sealing performance of existing rubber seals is difficult under high temperature, low temperature, large temperature difference, corrosive medium and long life. Satisfactory, my country has a vast territory, and the lowest temperature in the western region can reach about -45°C. In these areas, rubber parts are prone to malfunction due to low temperature, thus causing some safety hazards. [0003] Nitrile rubber is prepared by emulsion polymerization of butadi...

AI Technical Summary

Problems solved by technology

The sealing strips on automobiles, shock absorbers, engine crankshaft and other oil seal materials are all rubber materials, but the sealing performance of existing rubber seals is difficult under high temperature, low temperature, large temperature difference, corrosive medium and long life. Satisfactory, my country has a vast territory, and the lowest temperature in the western region can reach about -45°C. Rubber parts in these areas are prone to malfunction due to low temperature, which leads to some safety hazards

[0003] Nitrile rubber is prepared by emulsion polymerization of butadiene and acrylonitrile. It has excellent oil resistance, good wear resistance and heat resistance, and strong adhesion, but its low temperature resistance and ozone resistance are poor. slightly less elastic