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High-foaming reinforcing rubber sheet

A reinforcing film and high-foaming technology, applied in the direction of adhesives, epoxy resin glue, rubber derivative glue, etc., can solve the problems of fixed thickness and unsatisfactory reinforcement effect, so as to improve the bonding force and excellent damping and shock absorption effect , the effect of increasing strength

Active Publication Date: 2020-07-17
重庆钧业新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of high-foaming reinforcing film, is made up of each material of following mass parts:

[0020]

[0021] In this embodiment, the epoxy value of hydantoin epoxy resin is 0.2602 mol / 100g, and the average molecular weight is 769; the content of acrylonitrile in the carboxyl-terminated liquid nitrile rubber is 15%.

Embodiment 2

[0023] A kind of high-foaming reinforcing film, is made up of each material of following mass parts:

[0024]

[0025] In this embodiment, the epoxy value of hydantoin epoxy resin is 0.2602 mol / 100g, and the average molecular weight is 769; the content of acrylonitrile in the carboxyl-terminated liquid nitrile rubber is 15%.

Embodiment 3

[0027] A kind of high-foaming reinforcing film, is made up of each material of following mass parts:

[0028]

[0029]

[0030] In this embodiment, the epoxy value of hydantoin epoxy resin is 0.2602 mol / 100g, and the average molecular weight is 769; the content of acrylonitrile in the carboxyl-terminated liquid nitrile rubber is 15%.

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Abstract

In order to solve the problems of fixed thickness and unsatisfactory reinforcing effect of conventional automobile reinforcing rubber sheets, the invention provides a high-foaming reinforcing rubber sheet. The reinforcing rubber sheet is composed of the following substances in parts by mass: 1-10 parts of carboxyl-terminated liquid nitrile rubber, 5-50 parts of calcium carbonate, 10-40 parts of hydantoin epoxy resin, 1-5 parts of a foaming agent, 5-20 parts of dibutyl phthalate, 0.1-1 part of a peroxide vulcanizing agent and 1-10 parts of a curing agent. The reinforcing rubber sheet of the invention has the advantages that the reinforcing rubber sheet is lighter and is beneficial for promoting lightweighting of an automobile; the strength of the reinforcing rubber sheet can be improved through microcellular foaming, and under a foaming condition, reinforcing multiplying power can also reach 5-6 times; meanwhile, due to the existence of a mesoporous structure, damping effect is better,the stress of the reinforcing rubber sheet during epoxy curing can be dispersed due to the existence of micropores; the reinforcing rubber sheet has better conformability during application, and doesnot causes deformation of a steel plate.

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 and the continuous improvement of automobile quality, automobiles are developing towards high speed, light weight, energy saving and comfort. Therefore, the NVH performance of automobiles (noise, vibration, and roughness (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 occupant. 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J115/00C09J11/04C09J11/06C09J11/08C09J7/30C09J7/10C08J9/10
CPCC08J9/107C08J2203/04C08J2363/00C08J2415/00C09J11/04C09J11/06C09J11/08C09J163/00C09J7/10C09J7/30C08L15/00C08K3/26C08K5/12C08K5/14
Inventor 周家德尚明勇杨刚
Owner 重庆钧业新材料科技股份有限公司
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