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A kind of flame-retardant carbon fiber electric heating paper and preparation method thereof

A carbon fiber and electric heating paper technology, applied in the direction of synthetic cellulose/non-cellulose material pulp/paper, fiber raw material processing, non-fiber pulp addition, etc., can solve problems such as low fastness, easy tearing, and easy breaking of paper , to achieve uniform overall dispersion, good flame retardant performance, and good bending resistance

Inactive Publication Date: 2016-01-20
安徽博领农业科技有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The existing carbon fiber paper is mainly composed of carbon fiber and pulp to make paper. This kind of paper has uneven resistance, and carbon fiber is unevenly dispersed in the paper, resulting in uneven heat generation. Moreover, the paper is easy to break, the fastness is not high, and it is easy to tear. Wait

Method used

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Embodiment Construction

[0011] The modified mica powder is made of the following raw materials in parts by weight (kg): mica powder 12, attapulgite 3, aluminum nitride 2, n-butyl citrate 2, barium petroleum sulfonate 2, sodium metasilicate 3. Silane coupling agent KH5502, dimethyl silicone oil 2, polyvinyl alcohol 2, and morpholine 2; the preparation method is: mix the materials, add them to water with 8-10 times the amount of mica powder, and heat to 95-100°C , stir and cook for 2-3 hours, after cooling, dehydrate and dry, grind to get 200-300 mesh powder, then spray chlorinated paraffin equivalent to 1-2% of mica powder weight on the powder, and mix well.

[0012] The carbon fiber paper prepared by this process is tested for the resistance value of an area of ​​600mm×400mm (the electrode direction is the length direction), and the value is 440Ω. Using 220V AC voltage for power-on test, the average surface temperature is 44°C, and the temperature distribution is tested at 10 different locations on t...

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Abstract

The invention discloses a flame-resistant carbon-fiber electrothermal paper and a preparation method thereof. The flame-resistant carbon-fiber electrothermal paper is prepared from the following raw materials by weight: 70 to 80 parts of a carbon fiber, 50 to 60 parts of wood pulp, 3 to 4 parts of gelatin, 1 to 2 parts of polyvinyl alcohol, 2 to 3 parts of lignin, 1 to 2 parts of a cross-linking agent TAC, 2 to 3 parts of polyvinylpyrrolidone, 1 to 2 parts of borax, 12 to 13 parts of aluminum hydroxide, 1 to 2 parts of ammonium persulfate, 1 to 2 parts of grape seed oil and 3 to 4 parts of modified mica powder. According to the invention, aluminum hydroxide is added into a formula for the raw materials and has good flame retardation performance, so the electrothermal paper prepared in the invention is safe to use and does not cause a fire hazard; the integral carbon fiber in the carbon-fiber paper is uniformly dispersed, and carbon-fiber paper has good breaking resistance, is hard to tear and damage and can be conveniently processed into planar heat-generating bodies according to different temperature requirements.

Description

technical field [0001] The invention relates to the technical field of electric heating materials, in particular to a flame-retardant carbon fiber electric heating paper and a preparation method thereof. Background technique [0002] Carbon fiber paper is a functional paper with special properties produced by using carbon fiber or activated carbon fiber and carbon fiber or activated carbon fiber mixed with other plant or non-plant fibers. Carbon fiber paper has many excellent properties, such as electrical conductivity, thermal conductivity, porosity, adsorption, etc., so it is widely used in energy, military, environmental protection, civil engineering, electronic appliances, heating and other fields. The existing carbon fiber paper is mainly composed of carbon fiber and pulp to make paper. This kind of paper has uneven resistance and uneven dispersion of carbon fiber in the paper, resulting in uneven heat generation. Moreover, the paper is easy to break, has low fastness, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H13/50D21H17/68D21H17/64D21H21/14
Inventor 程坤
Owner 安徽博领农业科技有限公司
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