Preparation method of phenolic resin matrix nano activated carbon fiber material
A technology of activated carbon fiber and phenolic resin, which is applied in the direction of carbon fiber, fiber treatment, spinning solution preparation, etc. It can solve the problems of poor spinnability and limited solvent types, and achieve the effects of low price, good dimensional stability, and wide sources
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Embodiment 1
[0024] (1) Dissolve 1.3g of bisphenol AF-aniline type benzoxazine monomer (reagent model P8423) and 0.1g of benzylamine in 25.3g of N,N-dimethylformamide at room temperature , the stirring speed is 100rpm, and the stirring time is 10min to obtain a benzoxazine solution with a mass concentration of 4.1%;
[0025] (2) At room temperature, 2.1g of nylon 6 (molecular weight: 70,000) was added to the benzoxazine solution, the stirring speed was 500rpm, the stirring time was 3h, and the mixture was uniformly mixed to obtain a solution with a mass concentration of the blended material of 5.9%. ;
[0026] (3) Under the conditions of room temperature and relative humidity of 30%, the mixed solution obtained is input to the spinneret of the electrospinning equipment at a flow rate of 0.3mL / h, and the spinneret is connected to a 10kV power supply for electrostatic The benzoxazine composite nanofiber membrane is prepared by spinning, the receiving device is a copper mesh, and the distanc...
Embodiment 2
[0031](1) Dissolve 8.1g of naphthol-aniline type benzoxazine monomer (reagent model P8417) and 1.4g of imidazole in 67.2g of tetrahydrofuran in a stirred tank at room temperature, the stirring speed is 150rpm, and the stirring time is 15min , to obtain a mass concentration of 12.4% benzoxazine solution;
[0032] (2) At room temperature, 17.3g of polyacrylonitrile (molecular weight: 90,000) was added to the benzoxazine solution, the stirring speed was 600rpm, and the stirring time was 5h. solution;
[0033] (3) Under the conditions of room temperature and relative humidity of 45%, the resulting blended solution was input to the spinneret of the electrospinning equipment at a flow rate of 1mL / h, and the spinneret was connected to an 18kV power supply for electrospinning Silk preparation of benzoxazine composite nanofiber membrane, the receiving device is aluminum foil, the distance between the receiving device and the spinneret is 15cm;
[0034] (4) Put the obtained benzoxazin...
Embodiment 3
[0038] (1) At room temperature, in a stirred tank, 14.7g bisphenol A-aniline type benzoxazine monomer (reagent model P8427) and 2.7g oxalic acid are dissolved in 64.2g methylene chloride, and the stirring speed is 200rpm, stirring The time is 20min, and a benzoxazine solution with a mass concentration of 16.1% is obtained;
[0039] (2) At room temperature, 22.3g of polyimide (molecular weight: 60,000) was added to the benzoxazine solution, the stirring speed was 800rpm, the stirring time was 6h, and the mixture was evenly mixed to obtain a blend with a mass concentration of 21.5%. solution;
[0040] (3) Under the conditions of room temperature and relative humidity of 50%, the mixed solution obtained is input to the spinneret of the electrospinning equipment at a flow rate of 1.5mL / h, and the spinneret is connected to a 20kV power supply for electrostatic Prepare benzoxazine composite nanofiber membrane by spinning, the receiving device is aluminum foil, and the distance betw...
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