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A kind of preparation method of carbon-based wave absorbing material

A wave-absorbing material and carbon-based technology, applied in chemical instruments and methods, rayon manufacturing, and other chemical processes, to achieve the effects of strong repeatability, improved magnetic permeability, and simple process

Active Publication Date: 2020-06-02
苏州磁亿电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Most of the absorbing materials produced by the above patents and known technologies use the electrical loss or magnetic loss properties of the materials, and there is very little absorbing material that has both the above two properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing a carbon-based wave-absorbing material, the technical scheme of which is as follows according to the mass g:

[0018] Add 45g of acrylonitrile, 25g of styrene, 6g of itaconic acid, 0.03g of benzotriazole-1-carboxythioacid allylamide, 0.04g of (R, R)-ethylene di( 4,5,6,7-tetrahydroxy-1-indenyl)]difluorotitanium, 0.5g 2-(chloromethyl)-3,5-dioxa-1-hexene, 0.75g of initiator peroxidation Benzoyl and 175g of DMSO were polymerized at a constant temperature of 60~65°C for 26h; then 8g of a mixture of ferrous oxalate, zinc nitrate and nickel nitrate powder (molar ratio 43:12:12) was added to the reaction system, After high-speed dispersion for 35 minutes, wet spinning technology is used to solidify the composite liquid into silk, and the silk is carbonized and ground under the condition of protective gas to obtain a carbon-based wave-absorbing material.

[0019] The sample number is AS-1.

Embodiment 2

[0021] A method for preparing a carbon-based wave-absorbing material, the technical scheme of which is as follows according to the mass g:

[0022] Add 40g of acrylonitrile, 20g of styrene, 4g of itaconic acid, 0.01g of benzotriazole-1-carboxythioacid allylamide, 0.01g of (R, R)-ethylene di( 4,5,6,7-Tetrahydroxy-1-indenyl)]difluorotitanium, 0.1 g of 2-(chloromethyl)-3,5-dioxa-1-hexene, 0.5 g of the initiator azo Diisobutyronitrile and 150g of DMSO were polymerized at a constant temperature of 60-65°C for 24 hours; then a mixture of 6g of ferrous oxalate, zinc nitrate and nickel nitrate powder was added to the reaction system (the molar ratio was 40:10:10), After 30 minutes of high dispersion, wet spinning technology is used to solidify the composite liquid into silk, and the silk is carbonized and ground under the condition of high-purity nitrogen to obtain a carbon-based wave-absorbing material.

[0023] Sample number AS-2.

Embodiment 3

[0025] A method for preparing a carbon-based wave-absorbing material, the technical scheme of which is as follows according to the mass g:

[0026] Add 55g of acrylonitrile, 30g of styrene, 8g of itaconic acid, 0.2g of benzotriazole-1-carboxythioacid allylamide, 0.2g of (R, R)-ethylene di( 4,5,6,7-tetrahydroxy-1-indenyl)]difluorotitanium, 0.8 g of 2-(chloromethyl)-3,5-dioxa-1-hexene, 1 g of initiator cumene Hydrogen peroxide and 200g of DMSO were polymerized at a constant temperature of 60~65°C for 28h; then 10g of a mixture of ferrous oxalate, zinc nitrate and nickel nitrate powder (molar ratio 45:13:13) was added to the reaction system, After high-speed dispersion for 40 minutes, wet spinning technology was used to solidify the composite liquid into silk, and the silk was carbonized and ground under the condition of protective gas to obtain a carbon-based wave-absorbing material.

[0027] Sample number AS-3.

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PUM

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Abstract

The invention relates to the field of function material preparation, in particular to a preparation method of a carbon-based wave-absorbing material. The preparation method includes the steps: adding40-55 parts of vinyl cyanide, 20-30 parts of styrene, 4-8 parts of itaconic acid, 0.01-0.2 part of benzotriazole-1-allyl amide carboxythioacid, 0.01-0.2 part of (R, R)-divinyl (4, 5, 6 and 7-tetrahydroxy-1-indenyl)] difluorine titanium, 0.1-0.8 part of 2-(chloromethyl)-3, 5-dioxygen heterozygosity-1-hexene, 0.5-1 part of initiators and 150-200 parts of DMSO (dimethyl sulfoxide) into a reaction kettle to perform polymerization reaction for 24-28h at the temperature of 60-65 DEG C; adding 6-10 parts of mixture of ferrous oxalate, zinc nitrate and nickel nitrate powder into a reaction system, dispersing for 30-40min at high speed, solidifying compound liquid into wires by a wet spinning technique, carbonizing the wires under protective gas conditions, grinding the carbonized wires to obtain the carbon-based wave-absorbing material.

Description

technical field [0001] The invention relates to the field of preparation of functional materials, in particular to a preparation method of a carbon-based wave-absorbing material. Background technique [0002] With the rapid development of electronic technology, electronic, electrical equipment or other information systems have been more and more widely used in people's daily production and various fields of life. The wide application and development of electronic equipment, while bringing great convenience to people's lives, its electromagnetic radiation has also had a great impact on human health and the environment on which we live. Absorbing materials are of great significance in absorbing interfering electromagnetic waves, reducing electromagnetic radiation, and improving the living environment of human beings. [0003] CN103087347B discloses a polyimide composite wave-absorbing foam material and a preparation method thereof. The method comprises the following steps: (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/00D01F6/54D01F1/10C08F220/46C08F212/08C08F222/02
CPCC08F220/46C09K3/00D01F1/10D01F6/54C08F212/08C08F222/02
Inventor 王金桢曹东立王萍
Owner 苏州磁亿电子科技有限公司