A kind of preparation method of fiber-based graphene conductive material
A conductive material, graphene technology, applied in plant fibers, fiber processing, textiles and papermaking, etc., can solve problems such as hindering industrial production, complicated production processes, and complicated production methods, and achieves reduction of high-temperature processing processes, reduction of technological processes, The effect of reducing recontamination
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[0027] A kind of preparation method of fiber-based graphene conductive material, the concrete steps of preparation process are as follows:
[0028] a preparation of washing liquid:
[0029] Place the surfactant in a solution mixed with an organic solvent and water, stir evenly and prepare a washing liquid, wherein the bath ratio of the washing liquid is 1:20 to 1:60, and the volume ratio of the alcoholic organic solvent to water 10%:90%~40%:60%, the concentration of the surfactant is 0.5g / L~1.5g / L, the stirring speed is 100~250r / min, and the stirring time is 10~30min.
[0030] b Pretreatment of rush fiber:
[0031] Place the rush fiber in the washing solution prepared in step a for washing treatment and then drying, wherein the washing temperature is 20-35°C, the washing time is 10-30min, the drying temperature is 35-45°C, and the drying The drying time is 10-30 minutes. The surfactant is one of monolauryl phosphate, sodium lauryl amphoacetate, lauryl amidopropyl ammonium o...
Embodiment 1
[0039] According to the above process steps: mix 1mL ethanol with 9mL water, add 0.005g monolauryl phosphate, stir at 100r / min for 20min, prepare washing solution, then put 0.5g rush grass in the washing solution and wash at 20°C for 30min, 35 Bake at ℃ for 35 minutes to obtain washed rushes. Prepare 50mL of 5% polyvinylpyrrolidone solution, put the washed rush into the polyvinylpyrrolidone solution for immersion treatment at 35°C for 60min, and bake at 50°C for 6h. 0.5 g of graphene and 0.1 g of sodium alginate were placed in 99.4 g of N,N-dimethylformamide, stirred at 50 r / min for 15 min, and then ultrasonically treated at 20 kHz for 30 min to obtain a graphene dispersion. Put the washed rush grass into the graphene dispersion solution for immersion treatment at 20° C. for 1 hour, and bake at 40° C. for 6 hours to obtain the rush rush conductive fiber.
Embodiment 2
[0041] According to the above process steps: mix 12mL ethanol with 18mL water, add 0.015g sodium lauryl amphoacetate, stir at 150r / min for 10min, prepare washing solution, then put 0.5g rush grass in the washing solution and wash at 35°C for 10min, 40 Bake at ℃ for 30 minutes to obtain washed rushes. Prepare 50mL of 15% polyvinylpyrrolidone solution, put the washed rush into the polyvinylpyrrolidone solution for immersion treatment at 30°C for 30min, and bake at 55°C for 5h. 5 g of graphene and 1 g of sodium alginate were placed in 94 g of ethanol, stirred at 70 r / min for 15 min, and then ultrasonically treated at 40 kHz for 30 min to obtain a graphene dispersion. The washed rushes were put into the graphene dispersion liquid for immersion treatment at 28° C. for 4 hours, and then baked at 50° C. for 4 hours to obtain rushes conductive fibers.
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