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Electromagnetic shielding cable material and preparation method thereof

An electromagnetic shielding and cable material technology, applied in the field of functional materials, can solve the problems of the influence of communication cable signal transmission, poor shielding effect of metal materials, low frequency, etc., and achieve the effects of improving market competitiveness, convenient construction and reducing production costs.

Inactive Publication Date: 2019-12-20
江苏润集科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low frequency of this electromagnetic radiation, the shielding effect of metal materials is very poor, which has a significant impact on the signal transmission of communication cables
[0006] For shielded cables that do not rely on grounding measures, are convenient for construction, and can shield low-frequency electromagnetic interference, there have not been public reports

Method used

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  • Electromagnetic shielding cable material and preparation method thereof
  • Electromagnetic shielding cable material and preparation method thereof
  • Electromagnetic shielding cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An electromagnetic shielding cable material consists of the following components in parts by mass:

[0030]

[0031] The antioxidant is β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate.

[0032] Described lubricant is calcium stearate.

[0033] A preparation method of electromagnetic shielding cable material, comprising the following steps:

[0034] (1) Preheat the internal mixer to 82°C, add 30 parts by mass of natural rubber, 8 parts by mass of cis-butadiene rubber, and 25 parts by mass of styrene-butadiene rubber and masticate for 10 minutes, then add 0.9 parts by mass of zinc stearate, 1.5 parts by mass of Parts of microcrystalline wax, 0.4 parts by mass of anti-aging agent RD, 0.6 parts by mass of foaming agent and 0.7 parts by mass of silane coupling agent, mixed for 5 minutes at a speed of 45r / min, added 0.3 parts by mass of graphene, heated to 130 °C, and mixed 8min, finally add 0.5 parts by mass of vulcanizing agent PDM and 0.2 parts by mass of...

Embodiment 2

[0041] An electromagnetic shielding cable material consists of the following components in parts by mass:

[0042]

[0043] The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester.

[0044] Described lubricant is a kind of in calcium stearate or zinc stearate.

[0045] A preparation method of electromagnetic shielding cable material, comprising the following steps:

[0046] (1) Preheat the internal mixer to 78°C, add 25 parts by mass of natural rubber, 6 parts by mass of butadiene rubber, and 20 parts by mass of styrene-butadiene rubber for mastication for 8 minutes, then add 0.6 parts by mass of zinc stearate, 1 mass part of Parts of microcrystalline wax, 0.3 parts by mass of anti-aging agent RD, 0.5 parts by mass of foaming agent and 0.6 parts by mass of silane coupling agent, kneaded at a speed of 40r / min for 4min, added 0.2 parts by mass of graphene, heated to 120°C, and kneaded 6min, finally add 0.4 parts by mass of vulca...

Embodiment 3

[0053] An electromagnetic shielding cable material consists of the following components in parts by mass:

[0054]

[0055] The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester.

[0056] Described lubricant is zinc stearate.

[0057] A preparation method of electromagnetic shielding cable material, comprising the following steps:

[0058] (1) Preheat the internal mixer to 86°C, add 35 parts by mass of natural rubber, 10 parts by mass of butadiene rubber, and 30 parts by mass of styrene-butadiene rubber for 12 minutes, then add 1.2 parts by mass of zinc stearate, 2 parts by mass of Parts of microcrystalline wax, 0.5 parts by mass of anti-aging agent RD, 0.7 parts by mass of foaming agent and 0.8 parts by mass of silane coupling agent, mixed for 6 minutes at a speed of 50 r / min, added 0.4 parts by mass of graphene, heated to 140 ° C, and mixed 10min, finally add 0.6 parts by mass of vulcanizing agent PDM and 0.3 parts by mass...

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Abstract

The invention discloses an electromagnetic shielding cable material. The material is composed of an ethylene-ester copolymer, a graphene composite rubber foamed particle, a graphene / strontium ferritenanoparticle, a vulcanizing agent DCP, an antioxidant and a lubricant. The material has a wide absorption frequency range, and can absorb electromagnetic waves from power frequency (tens of hertz) tomicrowave frequency (tens of G hertz). An electromagnetic shielding cable made of the special material does not need to be grounded, and construction is convenient; the price is low; and a woven metallayer or metal foil is not needed, a manufacturing process is simplified, the production cost of cable manufacturers is directly reduced, and the market competitiveness of the electromagnetic shielding cable is improved. The material can be used not only for electromagnetic shielding cables, but also for manufacturing other products such as electromagnetic shielding ceilings, electromagnetic shielding wall linings, and electromagnetic shielding sheaths.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and relates to a method for manufacturing a special cable material, in particular to a method for preparing an electromagnetic shielding cable material. Background technique [0002] The wire and cable industry is the second largest industry in China after the automobile industry, and the product variety satisfaction rate and domestic market share both exceed 90%. Worldwide, China's wire and cable output has surpassed that of the United States, becoming the world's largest producer of wire and cable. With the continuous expansion of China's electric power industry, data communication industry, urban rail transit industry, automobile industry and shipbuilding and other industries, the demand for wire and cable will also grow rapidly, and the wire and cable industry still has huge development potential in the future. [0003] Shielded cables usually refer to signal transmission lines ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L7/00C08L9/00C08L9/06C08K13/02C08K3/04C08K3/22C08K5/14C08K5/098H01B3/44
CPCC08K2201/003C08L23/0853C08L2203/202C08L2205/02C08L2205/035C08L2205/14H01B3/441C08L7/00C08L9/00C08L9/06C08K13/02C08K3/042C08K3/22C08K5/14C08K5/098
Inventor 不公告发明人
Owner 江苏润集科技有限公司
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