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
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[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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