A kind of composite damping foam rubber material and preparation method thereof

Abstract

The invention provides a compound damping foam rubber material. The material is prepared from rubber, reinforcing filling and addition agents, wherein the addition agents comprise a vulcanizing agent, a dispersant, an anti-scorching agent, an anti-ageing agent, an accelerant, a secondary accelerant and a softening agent; the rubber is selected from at least two of silicone rubber, nitrile butadiene rubber, butadiene rubber, isoprene rubber and ethylene propylene rubber; and the addition agents also comprise a foaming agent. The compound damping foam rubber material provided by the invention has the advantages of light weight, cost reduction, good transformer oil resisting performance, good electric insulating performance and the like; a pore structure generated by foaming and the rubber material have a viscoelastic damping synergistic effect to enhance sound energy dissipation and improve noise-reduction performance of the compound damping foam rubber material; and the compound damping foam rubber material can be used as a sound-absorption and noise-reduction material to be applied to vibration absorption and noise reduction of a transformer body, and has remarkable economic and social benefits.

Description

technical field [0001] The invention relates to a rubber material, in particular to a noise reduction composite damping foam rubber material and a preparation method thereof. Background technique [0002] With the advancement of urbanization, the pollution of noise to the environment has gradually become a topic of concern to people. It has reached the same level of concern as water and air. has become an urgent problem to be solved. Rubber damping material is used to minimize equipment vibration and noise. Rubber damping material is a polymer-based functional material that reduces noise generated by various equipment. Now, many new materials and technologies have been applied to damping vibration isolation, and polymer damping vibration isolation materials have attracted people's attention due to their excellent performance. [0003] Taking substations as an example, the noise problem of substations has become one of the shackles restricting the development of power tran...

AI Technical Summary

Problems solved by technology

(3) The micropores are open to the outside, so that sound waves can easily enter the micropores. Materials without open micropores and only concave-convex surfaces will not have good sound absorption performance

In addition to the poor sound absorption performance of these materials, transformer rubber is used in a special environment, which requires rubber with good electrical properties and oil resistance, and can maintain stable performance for a long time between -25°C and 120°C.

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