Preparation method of carbon fiber fabric for electric heating

A technology of carbon fiber fabric and electric heating, which is applied in the direction of heating/cooling fabric, fiber treatment, plant fiber, etc., can solve the problems of uneven heating, non-discovery, low electrothermal conversion rate, etc., and achieve aging resistance, long service life, Even heating effect

Inactive Publication Date: 2019-03-12
嘉兴纳科新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent CN108014748A also discloses a preparation method of activated carbon fibers, the purpose is to prepare porous adsorption carbon fiber materials, and its products are also not suitable for the field of electric heating due to high resistance, low thermal efficiency, and uneven heating
Similarly, patent CN1354292 discloses a method for continuous preparation of activated carbon fiber felt and cloth. In this method, the carbon fiber cloth prepared by weaving

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

Embodiment 1

[0028] Step 1: Select 300D, 120F viscose filaments and twist them with a twist of 150. Weaving is the plain weave fabric of grammage 240 grams / m2 on rapier loom.

[0029] Step 2: Take by weighing 20g of ammonium phosphate, 40g of ammonium dihydrogen phosphate, add 940g of water, fully stir evenly. Prepare ammonium phosphate: ammonium dihydrogen phosphate = 0.5, a mixed solution with a concentration of 60g / L.

[0030] Step 3: Use the ammonium phosphate / ammonium dihydrogen phosphate mixed solution prepared in step 2 to process the plain viscose fabric woven in step 1. The treatment process is padding, and the pressure of the padding car is adjusted to 3kg. rate of 70%. Use a sizing machine to dry the padded fabric at a temperature of 100°C for 3 minutes.

[0031] Step 4: Tighten and fix the fabric treated in Step 3 on a graphite holder, and place it in a high-temperature atmosphere sintering furnace for pre-oxidation treatment. The heat treatment temperature is 260°C, the tim...

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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PUM

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Abstract

The invention relates to a preparation method of carbon fiber fabric for electric heating, which comprises the steps of (1)weaving raw fabric with carbon fiber yarns by means of spinning and weaving;(2) using a self-made treating agent to pad the raw fabric so that carbonization yield is increased, the surface of the raw fabric is etched and carbonization time is shortened; (3) pre-oxidizing thetreated raw fabric at 200-300 DEG C; (4) carbonizing the pre-oxidized fabric at the low temperature of 600-900 DEG C; (5) carbonizing the fabric, which is carbonized at the low temperature, at the high temperature of 1200-1800 DEG C to obtain carbon fiber fabric which is soft, low in resistance and suitable for electric heating.

Description

technical field [0001] The invention relates to the field of carbon fiber fabric production, in particular to a method for preparing a carbon fiber fabric for electric heating. Background technique [0002] At present, there are two types of common flexible electric heating materials. One is alloy electric heating materials, which are mainly made of metal alloy materials such as copper and nickel. Alloy electric heating materials have a large market share due to their long development time, mature and stable technology, and low cost. However, in the process of use, traditional alloy electric heating materials will suffer from corrosion, aging and other phenomena. At the same time, their driving voltage is usually high, which will generate open flames and pose a certain safety hazard. The other type is carbon heating materials. As a new type of heating material, carbon electrothermal materials are developing rapidly because of their advantages such as high electrothermal con...

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): D06C7/04D06M11/71D06B3/18
CPCD06B3/18D06C7/04D06M11/71D06M2101/06
Inventor 庹凯泓贾国强刘卓
Owner 嘉兴纳科新材料有限公司
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