Tape-casting wave absorbing material and preparing method and preparing device thereof

A wave-absorbing material and tape casting technology, applied in the field of electromagnetic protection, can solve problems such as environmental pollution, high cost, and endangering the health of production workers, and achieve the effects of avoiding harm and reducing production costs

Inactive Publication Date: 2019-04-16
重庆市鸿富诚电子新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cast-molded wave-absorbing material, which aims to solve the technical problems of environmental pollution in the preparation of wave-absorbing sheets by solvent-based methods in the prior art, endangering the health of production workers, and high cost

Method used

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  • Tape-casting wave absorbing material and preparing method and preparing device thereof
  • Tape-casting wave absorbing material and preparing method and preparing device thereof
  • Tape-casting wave absorbing material and preparing method and preparing device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A method for preparing an extended wave-absorbing material, comprising the following steps:

[0039] S100: preparation of slurry, the specific operation steps are as follows:

[0040] S101: sequentially add 150 parts of solvent water, 80 parts of sendust, 1 part of dispersant, 40 parts of styrene-butadiene latex, 2 parts of directional agent, and 0.5 part of curing agent into the container 10;

[0041] First, 150 parts of solvent water, 80 parts of sendust, 1 part of dispersant, 40 parts of styrene-butadiene latex, 2 parts of directional agent, and 0.5 part of curing agent are weighed respectively by a weighing device and added to the container 10, wherein The sheet diameter of the sendust is 30um and the thickness is 0.5um. Since the selection and dosage of the dispersant play a decisive role in the stability of the slurry, the dispersant can use polyacrylic acid amine salts, polyacrylic acid sodium salts, high One or more combinations of polymer dispersants. The amou...

Embodiment 2

[0062] A method for preparing an extended wave-absorbing material, comprising the following steps:

[0063] S100: preparation of slurry, the specific operation steps are as follows:

[0064] S101: sequentially add 150 parts of solvent water, 80 parts of sendust, 1.5 parts of dispersant, 30 parts of acrylic emulsion, 2 parts of directional agent, and 0.5 part of curing agent into the container 10;

[0065] First, 150 parts of solvent water, 80 parts of sendust, 1.5 parts of dispersant, 30 parts of acrylic emulsion, 2 parts of directional agent, and 0.5 part of curing agent are weighed respectively by a weighing device and added to the container 10, wherein iron The sheet diameter of silicon aluminum alloy is 30um and the thickness is 0.5um. Since the selection and amount of dispersant play a decisive role in the stability of the slurry, the dispersant can use polyacrylic acid amine salt, polyacrylic acid sodium salt, high polymer One or more combinations of dispersants. The am...

Embodiment 3

[0086] A method for preparing an extended wave-absorbing material, comprising the following steps:

[0087] S100: preparation of slurry, the specific operation steps are as follows:

[0088] S101: sequentially add 200 parts of solvent water, 80 parts of sendust, 2 parts of dispersant, 25 parts of acrylic emulsion, 3 parts of directional agent, and 0.5 part of curing agent into the container 10;

[0089] Firstly, 200 parts of solvent water, 80 parts of sendust, 2 parts of dispersant, 25 parts of acrylic emulsion, 3 parts of directional agent, and 0.5 part of curing agent are weighed respectively by a weighing device and added to the container 10, wherein iron The sheet diameter of silicon aluminum alloy is 120um and the thickness is 3um. Since the selection and dosage of the dispersant play a decisive role in the stability of the slurry, the dispersant can use polyacrylic acid amine salt, polyacrylic acid sodium salt, polymer One or more combinations of similar dispersants. Th...

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Abstract

The invention discloses a tape-casting wave absorbing material. The tape-casting wave absorbing material is prepared from, by mass, 150-250 parts of solvent water, 1-2.5 parts of a dispersing agent, 80 parts of a wave absorbing agent, 20-40 parts of a binder, 2-3 parts of a directional agent, 0.5 part of a curing agent and 8-12 parts of a thickening agent. According to the tape-casting wave absorbing material, the purposes that when the wave absorbing material is manufactured, the manufacturing process is environmentally friendly and causes no pollution, the body health of a production workeris not harmed, and the production cost is lowered are achieved.

Description

technical field [0001] The invention relates to the technical field of electromagnetic protection, in particular to a flow-cast wave-absorbing material, a preparation method and preparation equipment thereof. Background technique [0002] The absorbing material has attracted much attention because it can convert the electromagnetic energy of electromagnetic waves into heat energy. It can effectively prevent the interference of electromagnetic radiation on electronic equipment and further reduce the harm of electromagnetic waves to human health. Currently, the solvent-based method is the main way to prepare microwave-absorbing sheets. This method is to dissolve the thermoelastic polymer matrix such as EPDM rubber, nitrile rubber, and neoprene in organic solvents such as toluene, cyclohexanone, and chlorinated hydrocarbons, and add other types of additives such as curing agents. , cast into a sheet absorbing material. [0003] Due to the addition of a large amount of organic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/08C08L33/04C08K3/08C08K3/02C08J5/18
CPCC08J5/18C08J2309/08C08J2333/04C08K2003/023C08K2003/0812C08K2003/0856
Inventor 陈飞陈大全杨涛刘明强孙爱祥
Owner 重庆市鸿富诚电子新材料有限公司
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