Laminating buffer stop block and preparation method thereof

Abstract

The invention discloses a laminating buffer stop block. The laminating buffer stop block comprises outer-layer laminating and a microporous elastomer inner core, wherein the outer-layer laminating comprises main laminating and filling port laminating; the outer-layer laminating is a thermoplastic elastomer material, and the microporous elastomer inner core is a microporous elastomer foam material;the outer-layer laminating is coated on the surface of the microporous elastomer inner core, and the outer-layer laminating and the microporous elastomer inner core are compressed to deformation to absorb impact to play a buffer role; and the outer-layer laminating is compact and smooth, the abrasion resistance and corrosion resistance of the buffer stop block are improved, and the product life is greatly prolonged, so that the strict requirements of automobile operating in a severe environment are met. The invention further discloses a preparation method of the laminating buffer stop block.The preparation method comprises the steps that blow molding is carried out to form the main laminating; injection molding is carried out to form the filling port laminating; and the main laminating fits a mould and is injected with the microporous elastomer foam material, the filling port laminating is covered, and the laminating buffer stop block is obtained through demoulding after mold closingcuring.

Description

technical field [0001] The invention relates to the field of production and manufacture of new material components, in particular to a film-coated buffer stop block and a preparation method thereof. Background technique [0002] With the development of the automobile industry and the enhancement of safety awareness, and in order to cope with the situation of automobiles running under different environmental conditions, the corrosion resistance of the buffer stop block is becoming more and more important. The characteristics of the foam structure of the existing buffer stop block have insufficient tensile strength, wear resistance and corrosion resistance, which have affected the improvement of the overall performance of the buffer stop block. [0003] For example, a thermoplastic polyester elastomer composition provided by patent CN201611183138.5 can be used as a high-strength damping element that withstands dynamic fatigue, such as a buffer and shock-absorbing element for v...

AI Technical Summary

Problems solved by technology

[0007] The invention proposes a film-coated buffer stop block, the main purpose of which is to overcome the defects of poor corrosion resistance and short service life of polyurethane buffer stop blocks for automobiles; In the prior art, it is used to make the film-covered buffer stop block missing

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