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Electromagnetic shielding fabric for carbon fiber

A technology of electromagnetic shielding and carbon fiber, applied in the fields of magnetic/electric field shielding, fiber chemical characteristics, electrical components, etc., can solve problems such as spinning and weaving incompatibility, affecting production efficiency, etc.

Inactive Publication Date: 2008-05-28
SHENGHONG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Radio equipment has brought great convenience to people's life, followed by the increase of various electromagnetic waves, which has brought a lot of trouble and even danger to people's life, so various shielding methods have also emerged as the times require. There are many fabrics that have a certain effect on shielding. However, these fabrics are first endowed with shielding functions from the raw material, which brings certain incompatibility to spinning and weaving, and affects production efficiency.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0008] The preparation method of the present invention is the following steps:

[0009] ①. First, regenerated cellulose fiber or polyacrylonitrile fiber is used for spinning, and the filament is spun into a yarn of about 10tex / 28f by stretching and other processes to weave into fence fabric, and the warp and weft density are about 25 / 10cm;

[0010] ② Put the obtained fabric into a large carbonization furnace for pre-oxidation, that is, heat it to 220-300°C with an electric heating furnace for pre-oxidation, the heating rate is 4-15°C / min, and the holding time is 1-3 hours;

[0011] ③. Under the protection of inert gas, continue to use an electric heating furnace to heat to about 1000°C at a rate of 8-18°C / min, and keep it warm for 1-3 hours to obtain a carbon fiber yarn net with a carbon content of about 90%. Continue heating At 1400-3000°C, a graphite fiber yarn web with a carbon content of more than 99% is obtained, and the concentration of inert gas is above 99%;

[0012] ...

Embodiment 1

[0015] Ingredients: Regenerated Cellulose Fiber

[0016] Preparation:

[0017] ①. First, regenerated cellulose fiber or polyacrylonitrile fiber is used for spinning, and the filament is spun into a yarn of about 10tex / 28f by stretching and other processes to weave into fence fabric, and the warp and weft density are about 25 / 10cm;

[0018] ② Put the obtained fabric into a large carbonization furnace for pre-oxidation, that is, heat it to 220-300°C with an electric heating furnace for pre-oxidation, the heating rate is 4-15°C / min, and the holding time is 1-3 hours;

[0019] ③. Under the protection of inert gas, continue to use an electric heating furnace to heat to about 1000°C at a rate of 8-18°C / min, and keep it warm for 1-3 hours to obtain a carbon fiber yarn net with a carbon content of about 90%. Continue heating At 1400-3000°C, a graphite fiber yarn web with a carbon content of more than 99% is obtained, and the concentration of inert gas is above 99%;

[0020] ④. Using...

Embodiment 2

[0022] Ingredients: polyacrylonitrile fiber yarn, its preparation method is the same as embodiment one.

[0023] In summary, the carbon fiber electromagnetic shielding fabric of the present invention uses regenerated cellulose fiber, polyacrylonitrile fiber yarn, etc. as raw materials, has a good function of shielding electromagnetic waves, and has a simple spinning process, high production efficiency, and improved product quality. production value.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a whole new weaving process of carbon fiber electromagnetism shielding fabric, and a method thereof. Regenerated cellulose fiber or polyacrylonitrile fiber yarn is used for weaving to barrier fabric, graphite fiber yarn mesh is obtained by heating in high temperature to be served as basic cloth, and filature is sprayed by using a dry method to form the carbon fiber electromagnetism shielding fabric which has the function of well shielding the electromagnetic wave and has the advantages of simple spinning process and high production efficiency, thereby improving the production value of the product.

Description

technical field [0001] The invention relates to a weaving method of an electromagnetic shielding fabric, in particular to a weaving method of an electromagnetic shielding fabric made of carbon fibers. Background technique [0002] Radio equipment has brought great convenience to people's life, followed by the increase of various electromagnetic waves, which has brought a lot of trouble and even danger to people's life, so various shielding methods have also emerged as the times require. There are many fabrics that have a certain effect in shielding. However, these fabrics are first endowed with shielding functions from the raw material, which brings certain incompatibility to spinning and weaving, and affects production efficiency. Contents of the invention [0003] The purpose of the present invention is to provide a method for an excellent carbon fiber electromagnetic shielding fabric. [0004] The technical scheme provided for realizing the present invention is: [00...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): H05K9/00D01F9/12D04H3/00
Inventor 缪汉根
Owner SHENGHONG GRP CO LTD
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