A kind of high foaming reinforced film

Abstract

In order to solve the problem that the thickness of the existing automotive reinforcing film is fixed and the reinforcing effect is not ideal, the invention proposes a high-foaming reinforcing film. The reinforcing film is composed of the following parts by mass: carboxyl-terminated liquid nitrile rubber 1-10; calcium carbonate 5-50; hydantoin epoxy resin 10-40; foaming agent 1-5; Butyl ester 5‑20; peroxide curing agent 0.1‑1; curing agent 1‑10. The advantage of the present invention is that the reinforcing film applied with the reinforcing film is lighter, which is beneficial to promote the weight reduction of automobiles. And its microcellular foaming can increase the strength of the reinforced film itself. In the case of foaming, the reinforcement ratio can reach 5-6 times. At the same time, due to the existence of the mesopore structure, the damping and shock absorption effect is better, and the existence of micropores can disperse the stress of the reinforcing film when the epoxy is cured. When the reinforcing film is applied, it has better conformability and will not make the steel plate deformed.

Description

technical field [0001] The invention relates to the technical field of reinforcing materials for automobile steel plates, in particular to a high-foaming reinforcing film. Background technique [0002] With the development of science and technology, the quality of automobiles continues to improve, and automobiles are developing in the direction of high speed, light weight, energy saving and comfort. (Harshness)) requirements are getting higher and higher. The current development trend of automobile lightweight makes the structure of automobile body change, such as thinning of outer panels, hollowing of structural parts, etc. This phenomenon will affect the NVH performance of automobiles, and Its potential safety hazard will cause injury to the occupants. In order to solve the problem of using thin steel plates as body materials for the purpose of saving energy and reducing consumption, reducing the weight of the body and resulting in low mechanical strength of the body, rei...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the thickness of the existing automobile reinforcement film is fixed and the reinforcement effect is not ideal enough, the present invention proposes a high-foaming reinforcement film

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