Rubber material for dust cover of automobile transmission shaft

Abstract

The invention belongs to the technical field of rubber, and particularly relates to a rubber material for a dust cover of an automobile transmission shaft. The rubber material is prepared from, by mass, 100 parts of an ethylene-acrylate polymer, 1-2.5 parts of a high-temperature-resistant anti-aging agent, 0-1.5 parts of an auxiliary-octadecane amine, 1-2 parts of stearic acid, 0.5-1 part of microcrystalline wax, 70 parts of semi-reinforcing furnace black, 15 parts of a plasticizer-ester ether ABD-30, 1-1.5 parts of a hexamethylene diamine carbamate vulcanizing agent and 1.5-4.5 parts of an accelerator, wherein the ethylene-acrylate polymer is a mixture of a high-temperature-resistant type ethylene-acrylate polymer and a low-temperature-resistant type ethylene-acrylate polymer, and the mass ratio of the high-temperature-resistant type ethylene-acrylate polymer to the low-temperature-resistant type ethylene-acrylate polymer is 4:1-1:4. The rubber material has the advantages of being capable of achieving the superior oil resistance (130 DEG C / 144 h), the superior high temperature (130 DEG C) heat aging resistance and the low temperature (minus 40 DEG C) resistance simultaneously.

Description

technical field [0001] The invention belongs to the technical field of rubber, and in particular relates to a rubber material for an automobile transmission dust cover. Background technique [0002] In the automobile industry, with the development of automobile lightweight, and the interior space of automobiles is getting larger and larger, the space for parts of automobile outdoor machinery is getting smaller and smaller, and some parts are getting closer to the engine. The durability of these parts The higher the high temperature requirement. The application of the present invention to the automobile transmission pumping dust cover is exactly the rubber product under such conditions, and the high temperature resistance of the product is required to be 130°C, the low temperature resistance to -40°C, and the oil resistance to 130°C. The use of general-purpose rubber for high temperature resistance and oil resistance cannot meet the requirements, while the cost of using spec...

AI Technical Summary

Problems solved by technology

The use of general-purpose rubber for high temperature resistance and oil resistance cannot meet the requirements, while the cost of using special rubber is too high

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