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Liquid silicone rubber electromagnetic shielding material

An electromagnetic shielding material, liquid silicone rubber technology, applied in the direction of magnetic/electric field shielding, electrical components, etc., can solve the problems of unfavorable electromagnetic shielding effect and easy agglomeration of silicone rubber materials, so as to achieve improved electromagnetic shielding effect, not easy to reverse, good The effect of linear shapes

Inactive Publication Date: 2020-12-29
刘涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the technical problem to be solved in the present invention is: graphene and carbon nanotubes in more parts by weight are used together and simply dispersed into the silicone rubber material system, and the two are very prone to agglomeration, which is of great importance to further Improving the electromagnetic shielding effect of silicone rubber materials is very unfavorable

Method used

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  • Liquid silicone rubber electromagnetic shielding material
  • Liquid silicone rubber electromagnetic shielding material
  • Liquid silicone rubber electromagnetic shielding material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Liquid silicone rubber electromagnetic shielding material, including two components A and B, the mass ratio of component A to component B is 1:1;

[0035] Component A is in parts by weight and includes the following ingredients:

[0036]

[0037] Component B is in parts by weight and includes the following ingredients:

[0038]

Embodiment 2

[0040] Liquid silicone rubber electromagnetic shielding material, including two components A and B, the mass ratio of component A to component B is 1:1;

[0041] Component A is in parts by weight and includes the following ingredients:

[0042] Vinyl-containing polysiloxane 100 parts

[0043] Modified graphene 2 parts

[0044] GO 3 copies

[0045] Modified polyaniline 15 parts

[0046] Platinum catalyst 0.3 parts

[0047] Component B is in parts by weight and includes the following ingredients:

[0048]

[0049]

Embodiment 3

[0051] Liquid silicone rubber electromagnetic shielding material, including two components A and B, the mass ratio of component A to component B is 1:1;

[0052] Component A is in parts by weight and includes the following ingredients:

[0053]

[0054] Component B is in parts by weight and includes the following ingredients:

[0055]

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PUM

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Abstract

The invention relates to the field of electromagnetic shielding materials, in particular to a liquid silicone rubber electromagnetic shielding material. In order to add more graphene into the siliconerubber material system and further improve the electromagnetic shielding effect of the silicone rubber material, the invention provides a liquid silicone rubber electromagnetic shielding material, which is characterized in that polymerizable double bonds are introduced into partial graphene molecular structures to obtain modified graphene; the modified graphene can be chemically bonded with the hydrogen-containing silicone oil, and the other part of graphene is dispersed in the silicone rubber material system and cooperates with the carbon nanotubes and the modified polyaniline to form more conductive paths, thereby achieving the purpose of further improving the electromagnetic shielding effect of the silicone rubber material.

Description

technical field [0001] The invention relates to the field of electromagnetic shielding materials, in particular to a liquid silicone rubber electromagnetic shielding material. Background technique [0002] In recent years, with the rapid development of science and technology, various high-frequency electronic and electrical equipment radiate a large number of electromagnetic waves of different wavelengths and frequencies into space during work, resulting in new environmental pollution and electromagnetic interference. In order to avoid interference and leakage caused by electromagnetic radiation, conductive materials are often used to shield electromagnetic waves generated by electronic and electrical equipment, such as metal or conductive plastic shells. However, the joints, bonding points, small holes and other unconnected parts of the shell reduce the shielding effect; therefore, these parts must use conductive rubber parts with certain elasticity, and conductive silicon ...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/05C08L79/02C08K13/06C08K9/04C08K3/04H05K9/00
CPCC08L83/04H05K9/0081C08L2205/025C08L2205/03C08K2201/001C08L79/02C08K13/06C08K9/04C08K3/041C08K3/042
Inventor 刘涛
Owner 刘涛
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