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Damping multilayer conductive sponge and production and processing method thereof

A technology of conductive foam and processing method, applied in layered products, metal layered products, rubber layered products, etc., can solve the problems of general mechanical properties, difficult to restore the original state, weak shock absorption performance, etc., to improve the mechanical properties , accelerated decomposition, good sealing and shock absorption effect

Pending Publication Date: 2020-06-05
NINGGUO QIANHONG ELECTRONIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the common conductive foam on the market still has some defects, such as poor elasticity, it is difficult to restore the original shape after compression, and the mechanical properties are relatively general, which leads to weak shock absorption performance.

Method used

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  • Damping multilayer conductive sponge and production and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A shock-absorbing multilayer conductive foam includes a modified foamed sponge and a conductive fiber cloth. The conductive fiber cloth is bonded to the surface of the modified foamed sponge, and the surface of the conductive fiber cloth is sequentially covered with a metal copper layer and a metal nickel layer, The modified foamed sponge includes the following parts by weight: 40 parts of EPDM rubber, 20 parts of silicone rubber, 8 parts of foaming agent, and the foaming agent includes azodiaminobenzene and trinitrosotrimethylamine triamine, and Diaminobenzene and trinitrosotrimethylamine triamine are mixed in 2:1, α-hydroxy acid 5 parts, filler 15 parts, filler includes nano silica and magnesium hydroxide, and nano silica and magnesium hydroxide are 1:1 mixing, 20 parts of coal tar and 0.5 parts of sulfur.

[0038] A shock-absorbing multilayer conductive foam specifically includes the following steps:

[0039] (1) Stir and mix EPDM rubber, silicone rubber, nano silica, ma...

Embodiment 2

[0046] A shock-absorbing multilayer conductive foam includes a modified foamed sponge and a conductive fiber cloth. The conductive fiber cloth is bonded to the surface of the modified foamed sponge, and the surface of the conductive fiber cloth is sequentially covered with a metal copper layer and a metal nickel layer, The modified foamed sponge includes the following raw materials by weight: 44 parts of EPDM rubber, 22 parts of silicone rubber, 10 parts of foaming agent, and the foaming agent includes azodiaminobenzene and trinitrosotrimethylamine triamine, and Diaminobenzene and trinitrosotrimethylamine triamine are mixed in 2:1, α-hydroxy acid 5 parts, filler 17 parts, filler includes nano silica and magnesium hydroxide, and nano silica and magnesium hydroxide are 1:1 mixing, 25 parts of coal tar and 1 part of sulfur.

[0047] A shock-absorbing multilayer conductive foam specifically includes the following steps:

[0048] (1) Stir and mix EPDM rubber, silicone rubber, nano sili...

Embodiment 3

[0055] A shock-absorbing multilayer conductive foam includes a modified foamed sponge and a conductive fiber cloth. The conductive fiber cloth is bonded to the surface of the modified foamed sponge, and the surface of the conductive fiber cloth is sequentially covered with a metal copper layer and a metal nickel layer, The modified foamed sponge includes the following parts by weight: 50 parts of EPDM rubber, 25 parts of silicone rubber, 10 parts of foaming agent, foaming agent including azodiaminobenzene and trinitrosotrimethylamine triamine, and Diaminobenzene and trinitrosotrimethylamine triamine are mixed in 2:1, α-hydroxy acid 5 parts, filler 18 parts, filler includes nano silica and magnesium hydroxide, and nano silica and magnesium hydroxide are 1:1 mixing, 25 parts of coal tar and 1.5 parts of sulfur.

[0056] A shock-absorbing multilayer conductive foam specifically includes the following steps:

[0057] (1) Stir and mix EPDM rubber, silicone rubber, nano silica, magnesiu...

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Abstract

The invention discloses damping multilayer conductive sponge and a production and processing method thereof, which belong to the technical field of preparation of conductive foam. The conductive sponge comprises modified foamed sponge and conductive fiber cloth, wherein the conductive fiber cloth is attached to the surface of the modified foamed sponge, and the modified foamed sponge is prepared from the following raw materials in parts by weight: 40 to 55 parts of ethylene propylene diene monomer, 20 to 30 parts of silicone rubber, 8 to 15 parts of a foaming agent, 8 to 10 parts of alpha-hydroxy acid, 15 to 25 parts of a filler, 20 to 30 parts of a softener and 0.5 to 3 parts of sulfur; by adding the ethylene propylene diene monomer and the silicone rubber, the conductive sponge has excellent mechanical properties while having good shock absorption performance, and the shock absorption effect is further improved; by adding nano silicon dioxide and magnesium hydroxide, certain pores are reserved while the mechanical property of the conductive sponge is improved, the conductive sponge has good resilience force, and the damping multi-layer conductive sponge has good elastic force andmechanical property.

Description

Technical field [0001] The invention relates to the technical field of conductive foam preparation, in particular to a shock-absorbing multilayer conductive foam and a production and processing method thereof. Background technique [0002] Conductive foam is made of conductive fiber cloth with conductivity and corrosion resistance, and the final product has good elasticity and excellent shielding performance. The conductive fiber cloth is woven by metal fibers composed of a surface layer of copper and nickel on the surface of the fiber. The bottom layer of the fiber is made of high-conductivity copper, and the surface layer is anti-oxidation and corrosion-resistant nickel metal. The combination of copper and nickel provides excellent The conductivity and shielding effect. [0003] Conductive foam has the characteristics of good compressibility and good flexibility, so that it can ensure a good conduction contact area, and has a very high cost performance. It is currently the lates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L83/04C08L95/00C08K13/02C08K5/09C08K3/36C08K3/22C08K3/06C08J9/10D06M11/83B32B25/14B32B25/20B32B25/10B32B5/02B32B15/20B32B15/14B32B15/04B32B37/00
CPCC08J9/102C08J9/107D06M11/83B32B5/18B32B5/02B32B5/245B32B15/20B32B15/14B32B15/043B32B37/00C08J2323/16C08J2483/04C08J2203/04C08J2203/18C08K2201/011C08K13/02C08K5/09C08K3/36C08K2003/2224C08K3/06B32B2266/0207B32B2307/51B32B2307/54B32B2307/5825B32B2307/56
Inventor 唐千军
Owner NINGGUO QIANHONG ELECTRONIC CO LTD