High-damping shock-reducing rubber material used for automobile suspension bushing and production method thereof

Abstract

The invention discloses a high-damping and shock-absorbing rubber material for automobile suspension bushings. The raw materials include: 50-70 parts of methyl vinyl silicone rubber, 20-30 parts of polynorbornene rubber, and 60 parts of nitrile rubber. ‑100 parts, 15‑35 parts of ionic liquid modified halloysite, 20‑40 parts of naphthenic oil, 10‑15 parts of tackifying resin, 3‑8 parts of zinc oxide, 10‑20 parts of corn starch, 2‑3 parts of paraffin 1-2 parts, 1-2 parts of anti-aging agent, 1-5 parts of vulcanizing agent, 8-20 parts of processing aid, and the invention also discloses a preparation method of a high-damping shock-absorbing rubber material for an automobile suspension bush. The present invention blends methyl vinyl silicone rubber, polynorbornene rubber and nitrile rubber, controls the specific dosage ratio of the three to ensure the oil resistance, shock absorption performance and mechanical strength of the rubber material, and adds ionic liquid to modify The halloysite, tackifying resin and cornstarch greatly improve the damping performance, the preparation process is scientific and reasonable, the production cost is reduced, and it is beneficial to industrial production.

Description

technical field [0001] The invention relates to the technical field of rubber materials for automobile bushings, in particular to a high-damping shock-absorbing rubber material for automobile suspension bushes and a preparation method thereof. Background technique [0002] With the rapid development of the modern automobile industry, by introducing rubber-metal bushings (abbreviated as rubber bushings) into the suspension system, on the one hand, it is possible to avoid the mutual movement interference of the suspension components caused by the direct rigid connection, and on the other hand On the one hand, it can attenuate the impact and vibration from the road surface, that is, to ensure the appropriate stiffness characteristics of the rubber bushing can better coordinate the contradictory and unified relationship between the vehicle handling stability and ride comfort. [0003] A large number of flexible connections such as rubber bushes are used in the suspension of mode...

AI Technical Summary

Problems solved by technology

[0003] A large number of flexible connections such as rubber bushes are used in the suspension of modern cars to meet the needs of vehicle shock absorption and noise reduction. Rubber bushes are widely used in my country, and there are many studies on their performance. Improvement, the requirements for automobile performance, especially for damping characteristics such as shock absorption, noise reduction and sound insulation, are gradually increasing, and the rubber bushings currently available on the market cannot well meet the needs of consumers in this regard

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