Preparation method of dewaxing asphalt carbon fiber
A pitch carbon fiber and dewaxing technology, which is applied in the chemical characteristics of fibers, melt spinning, textiles and papermaking, etc., can solve the problems of easy aging and cracking of carbon fibers, reduced softening point, low mechanical strength, etc., and achieves unique and novel methods. content, the effect of simplifying the process
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example 1
[0023] First, weigh 1kg of rice and 0.5kg of soybeans, wash them with deionized water 3 times, put them in a steamer, cook at 90℃ for 20 minutes, spread them in a pineapple sieve, cool naturally to 45℃, and transfer them to In a sealed fermenter with 1L deionized water, add 5g of yeast powder to it, stir with a glass rod for 10 minutes, seal the fermenter, ferment for 8 days, centrifuge and collect the supernatant; then weigh 6kg of solid asphalt and add In an iron container with stirring, heat to 210°C to melt, and then pass compressed air into the molten asphalt at a rate of 4mL / min, then start the agitator, set the speed to 600r / min, and in the stirring state, sequentially Add 50 mL of engine oil and 200 mL of the supernatant obtained above, and then gradually increase the temperature to 280 ℃ at a rate of 2 ℃ / min, continue to stir and react for 30 minutes, and then discharge to obtain a dewaxed asphalt solution; then transfer the above-mentioned dewaxed asphalt solution to ...
example 2
[0026] First, weigh 1.5kg of rice and 0.8kg of soybeans, wash them with deionized water 4 times, put them in a steamer, cook at 93℃ for 25min, spread them in a pineapple sieve, cool naturally to 50℃, and transfer them to the bowl. In a sealed fermentation tank with 1.5L deionized water, add 7g of yeast powder to it, stir with a glass rod for 15 minutes, seal the fermentation tank, ferment for 9 days, centrifuge, collect the supernatant; then weigh 6-8kg The solid bitumen is added to a stirred iron container, heated to 215°C to melt it, and then compressed air is injected into the molten bitumen at a rate of 5mL / min, and then the agitator is started and the rotation speed is set to 700r / min. Under the state, add 55mL of engine oil and 250mL of the supernatant obtained above in sequence, and then gradually increase the temperature to 290℃ at a rate of 2℃ / min, continue to stir and react for 35 minutes, discharge the material, and obtain the dewaxed asphalt liquid; The bitumen solu...
example 3
[0029] First, weigh 2kg of rice and 1.0kg of soybeans respectively, wash them with deionized water 5 times, put them in a steamer, cook for 30 minutes at 95℃, spread them in a pineapple sieve, cool naturally to 55℃, and transfer them to the container. In a sealed fermentation tank with 2L deionized water, add 8g of yeast powder to it, stir with a glass rod for 20 minutes, seal the fermentation tank, ferment for 10 days, centrifuge and collect the supernatant; then weigh 8kg of solid asphalt and add In an iron container with stirring, heat to 220°C to melt it, and then pass compressed air into the molten asphalt at a rate of 6mL / min, then start the agitator and set the speed to 800r / min. Add 60 mL of engine oil and 300 mL of the supernatant obtained above, and then gradually increase the temperature to 300 ℃ at a rate of 2 ℃ / min, continue to stir and react for 40 minutes, discharge the material, and obtain the dewaxed asphalt solution; In the spinneret barrel of the melt spinnin...
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