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

Active Publication Date: 2021-05-14
WUHAN TEXTILE UNIV
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  • Summary
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  • Description
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AI Technical Summary

Problems solved by technology

This method prepares conductive fibers, there are pre-oxidation, oxidation, and graphene reduction processes, and the manufacturing process is complicated, which hinders its industrial production
[0008] Some current conductive fiber materials are expensive, the production method is complicated, and the cost is high. Therefore, it is a difficult problem to be solved urgently to prepare a low-cost, simple process and good effect conductive fiber.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[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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Abstract

The invention relates to a preparation method of a fiber-based graphene conductive material, which belongs to the conductive material manufacturing technology. The invention adopts a washing solution mixed with a low proportion of organic solvent and water to wash the rush fiber, and then modifies the washed rush fiber, and mixes sodium alginate and graphene to form uniform and stable graphite The washed rush fiber is impregnated with olefin dispersion system, and then the rush conductive fiber is obtained. The invention can effectively improve the utilization rate of graphene, reduce the high-temperature reaction process, and the preparation method has simple process, easy operation and low production cost. In the preparation method of the fiber-based graphene conductive material of the present invention, the loading capacity of the rush fiber to the graphene is high, the obtained material has stable performance, and the conductive fiber has good conductive performance.

Description

technical field [0001] The invention relates to a preparation method of a fiber-based graphene conductive material, which belongs to the conductive material manufacturing technology. Background technique [0002] Rush porous fiber material is a natural cellulose low-density porous material, which has the advantages of excellent specific surface area, high porosity and low density, and has great prospects in adsorption and heat insulation. Porous materials have excellent properties such as large specific surface area and good adsorption performance. They have strong adsorption capacity for graphene and are excellent matrix materials. Rush grass is a perennial herb of the genus Rush in the family Rush, and is a folk traditional Chinese medicine. This genus is widely distributed and rich in resources. At present, there are many researches on its chemistry and pharmacology, but the excellent performance of rush as a natural porous cellulose fiber is ignored. [0003] Conductiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/74D06M15/13D06M15/356D06M13/292D06M13/188D06M13/463D06M101/06
CPCD06M11/74D06M13/188D06M13/292D06M13/463D06M15/13D06M15/3562D06M2101/06
Inventor 徐卫林刘斯年周思婕夏良君付专
Owner WUHAN TEXTILE UNIV
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