Composite rubber material with electromagnetic shielding function

A composite rubber and electromagnetic shielding technology, which is applied in the fields of magnetic/electric field shielding, electrical components, textiles and papermaking, etc., can solve the problems of poor mechanical quality and heavy weight of rubber, and achieve good overall quality, long life and corrosion resistance Good results

Inactive Publication Date: 2018-11-23
合肥卓汇新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional electromagnetic shielding materials, such as metal materials, have good electromagnetic shielding effectiveness, but due to their heavy weight, they cannot be used in some special occasions. Polymer materials have the characteristics of good mechanical properties, small weight, and flexibility. In many fields, some traditional materials have been gradually replaced. Adding materials with electromagnetic shielding properties to polymer materials to form composite materials is a solution for people to seek new electromagnetic shielding materials
[0005] Rubber is a kind of elastic polymer. Existing people have developed it into a material with electromagnetic shielding function, such as an electromagnetic shielding rubber material disclosed in the application number: 201711245291.0, by adding nickel-plated carbon nanotubes to the rubber matrix , metal powder, etc. to enhance the electromagnetic shielding effect of rubber, although it has a good effect, but the mechanical quality of the corresponding rubber is not good, and the comprehensive performance still needs to be further improved

Method used

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  • Composite rubber material with electromagnetic shielding function

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A composite rubber material with electromagnetic shielding function, made of the following substances by weight:

[0030] 55 parts of nitrile rubber, 10 parts of silicone rubber, 20 parts of natural rubber, 5 parts of fluororubber, 4 parts of stearic acid, 2 parts of sulfur, 5 parts of kaolin, 3 parts of mica powder, 1 part of polyvinyl alcohol, 2 parts of pyrophosphoric acid Sodium, 1 part antioxidant, 0.5 part accelerator, 10 parts modified functional filler.

[0031] Further, both the kaolin and mica powder have been calcined, and the calcining process specifically includes placing the kaolin and mica powder in an environment at a temperature of 820° C. for 1 hour for calcining.

[0032] Further, the antioxidant is antioxidant 245.

[0033] Further, the accelerator is accelerator NA-22.

[0034] Further, the modified functional filler is composed of small particle modified ramie fiber, medium particle modified ramie fiber and large particle modified ramie fiber, an...

Embodiment 2

[0045] A composite rubber material with electromagnetic shielding function, made of the following substances by weight:

[0046] 58 parts of nitrile rubber, 13 parts of silicone rubber, 22 parts of natural rubber, 8 parts of fluororubber, 5 parts of stearic acid, 3 parts of sulfur, 6 parts of kaolin, 5 parts of mica powder, 2 parts of polyvinyl alcohol, 4 parts of pyrophosphoric acid Sodium, 1.5 parts of antioxidant, 1 part of accelerator, 13 parts of modified functional filler.

[0047] Further, both the kaolin and mica powders have been calcined, and the calcining process specifically includes putting the kaolin and mica powders into an environment with a temperature of 840° C. for 1.5 hours for calcining.

[0048] Further, the antioxidant is antioxidant 626.

[0049] Further, the accelerator is accelerator BZ.

[0050] Further, the modified functional filler is composed of small particle modified ramie fiber, medium particle modified ramie fiber and large particle modifie...

Embodiment 3

[0061] A composite rubber material with electromagnetic shielding function, made of the following substances by weight:

[0062] 60 parts of nitrile rubber, 15 parts of silicone rubber, 25 parts of natural rubber, 10 parts of fluororubber, 6 parts of stearic acid, 4 parts of sulfur, 7 parts of kaolin, 6 parts of mica powder, 3 parts of polyvinyl alcohol, 5 parts of pyrophosphoric acid Sodium, 2 parts of antioxidant, 1.5 parts of accelerator, 15 parts of modified functional filler.

[0063] Further, both the kaolin and mica powders have been calcined, and the calcining process specifically includes putting the kaolin and mica powders into an environment with a temperature of 860° C. for 2 hours for calcining.

[0064] Further, the antioxidant is antioxidant 1010.

[0065] Further, the accelerator is accelerator NS.

[0066] Further, the modified functional filler is composed of small particle modified ramie fiber, medium particle modified ramie fiber and large particle modifi...

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Abstract

The invention discloses a composite rubber material with an electromagnetic shielding function. The composite rubber material is prepared from nitrile butadiene rubber, silicone rubber, natural rubber, fluorine rubber, stearic acid, sulfur, kaolin, mica powder, polyvinyl alcohol, sodium pyrophosphate, antioxidant, accelerator and modified functional filler. The rubber material has the advantages of simple raw material composition, wide source, very high electromagnetic shielding performance, high temperature resistance, high corrosion resistance, high permanent deformation resistance, high mechanical quality, long service life, high stability, high comprehensive quality, and great market competitiveness and production application value.

Description

technical field [0001] The invention belongs to the technical field of high-performance composite materials, and in particular relates to a composite rubber material with electromagnetic shielding function. Background technique [0002] The rapid development of modern electronic technology provides great convenience to people's life, but also brings serious electromagnetic pollution. It not only endangers people's health, but also poses a threat to the information security of electronic equipment and the system stability of surrounding equipment. The development of high-performance electromagnetic shielding materials is an effective way to solve the above problems. In recent years, in order to adapt to the development trend of light weight and high integration of electronic equipment, electromagnetic shielding materials have gradually become a new research hotspot. [0003] Electromagnetic radiation is everywhere, and it is recognized as the fourth largest pollution after ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L1/02C08L83/04C08L7/00C08L27/12C08K13/02C08K5/09C08K3/34D06M15/61D06M11/83D06M10/00H05K9/00D06M101/06
CPCC08L9/02C08L2201/08C08L2205/025C08L2205/035C08L2205/16D06M10/001D06M11/83D06M15/61D06M2101/06H05K9/0081C08L1/02C08L83/04C08L7/00C08L27/12C08K13/02C08K5/09C08K3/34C08K3/346
Inventor 郭平
Owner 合肥卓汇新材料科技有限公司
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