A kind of preparation method of rubber damping pad

Abstract

The invention discloses a method for preparing a rubber damping pad. Three raw materials of styrene-butadiene rubber, EPDM rubber and neoprene rubber are dried in a drying room and cut into small pieces, and then the three kinds of rubber are cut into small pieces. The raw material is masticated in the open mill for 10‑20 minutes, and then added with nano-scale zinc oxide, white carbon black, tackifier, softener, and peptizer for further mastication; then the masticated raw rubber is mixed with various A compounding agent (microcrystalline wax, carbon black, anti-aging agent, heat stabilizer, plasticizer, antioxidant, waterproofing agent, coupling agent, leveling agent) is mixed, and is placed on the internal mixer and kneads; Then put The mixed rubber is put into a calender to be pressed into the required product, and then vulcanized by adding a vulcanizing agent and an auxiliary vulcanizing agent; finally, the vulcanized product is trimmed and cut to obtain the product. The rubber damping pad produced has good water resistance and shock absorption effect, and also has good aging resistance and heat resistance.

Description

technical field [0001] The invention relates to a preparation method of a damping pad, in particular to a preparation method of a rubber damping pad. Background technique [0002] With the continuous improvement of the level of science and technology, damping pads are widely used in automobile shock absorption technology. Traditional damping pads generally include asphalt damping pads and rubber damping pads. Elasticity damps the structure, and consumes part of the vibration energy through the viscous internal friction between the rubber molecular chains, thus playing a good damping effect. However, the waterproof effect of the rubber damping pad prepared by the traditional method is not good enough, and it is easy to Due to aging, the original high viscoelasticity is lost, and the shock absorption effect cannot be achieved, so it can only be replaced again, which is time-consuming and requires an additional expense. Contents of the invention [0003] In view of the defic...

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of the level of science and technology, damping pads are widely used in automobile shock absorption technology. Traditional damping pads generally include asphalt damping pads and rubber damping pads. Elasticity damps the structure, and consumes part of the vibration energy through the viscous internal friction between the rubber molecular chains, thus playing a good damping effect. However, the waterproof effect of the rubber damping pad prepared by the traditional method is not good enough, and it is easy to Due to aging, the original high viscoelasticity is lost, and the shock absorption effect cannot be achieved, so it can only be replaced again, which is time-consuming and requires an extra expense.

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