Formula of ethylene-propylene-diene-terpolymer rubber three-layer pad of air-conditioner compressor

Abstract

The invention discloses a formula of an ethylene-propylene-diene-terpolymer rubber three-layer pad of an air-conditioner compressor. The formula comprises 120 parts of ethylene-propylene-diene-terpolymer rubber, 50 parts of N550 carbon black, 30 parts of N990 carbon black, 20 parts of kieselguhr, 30 parts of environmental-friendly paroline, 3 parts of environmental-friendly zinc oxide, 1 part of stearic acid, 0.5 part of sulfur, 2 parts of an accelerant TP / S, 0.7 part of an accelerant ZBEC (Zinc Dibenzyldithio Carbamate), 0.8 part of an accelerant MBT, 1 part of an RN75 antistatic agent, 1 part of a foaming agent, 2 parts of an anti-aging agent RD, and the total parts are 262. The formula adopts environmental-friendly systems, is free of toxic or side effects and can replace silica gel pads of high price; due to use of the N990 carbon black, the elasticity and the damping effect of a product can be improved; due to use of the kieselguhr, the problem that heat can be generated in the use process of the three-layer pad can be solved; the cross-linking degree of a rubber material can be increased due to addition of the accelerant TP / S and the accelerant ZBEC; the thermal resistance can be improved; and the permanent compression deformation property of the product can be improved.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a formula of an EPDM three-layer pad for an air conditioner compressor. Background technique [0002] EPDM rubber is a copolymer of ethylene, propylene and a small amount of non-conjugated diene. It is a kind of ethylene propylene rubber. It has excellent aging resistance such as ozone resistance, heat resistance, and weather resistance. It can be widely used in automotive parts, In the fields of waterproof materials for construction, wire and cable sheaths, heat-resistant rubber hoses, tapes, and automotive seals, most of the backing plates of air-conditioning compressors currently use silicone pads. However, the elasticity and shock absorption effect of traditional EPDM rubber Not ideal enough, therefore, it is particularly important to solve this type of problem. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides a formula ...

AI Technical Summary

Problems solved by technology

[0002] EPDM rubber is a copolymer of ethylene, propylene and a small amount of non-conjugated diene. It is a kind of ethylene propylene rubber. It has excellent aging resistance such as ozone resistance, heat resistance, and weather resistance. It can be widely used in automotive parts, In the fields of waterproof materials for construction, wire and cable sheaths, heat-resistant rubber hoses, tapes, and automotive seals, most of the backing plates of air-conditioning compressors currently use silicone pads. However, the elasticity and shock absorption effect of traditional EPDM rubber Not ideal enough, therefore, it is particularly important to solve this kind of problems