Cellulose/carbon nano tube composite nanofiber membrane preparation method
A carbon nanotube composite and composite nanofiber technology is applied in fiber processing, spinning solution preparation, filament/wire forming and other directions, and can solve the problems that do not involve the preparation and performance of cellulose/carbon nanotube electroactive materials, etc. To achieve the effect of simple process, high conductivity and good electroactive performance
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[0012] Example 1:
[0013] 1) Preparation of carbon nanotube solution: add 4.0g single-walled carbon nanotubes to 200ml HNO 3 / H 2 SO 4 (1:1) mixed acid, prepare 0.02g / mL solution, heat the solution to boiling state and reflux for 60min, filter and wash with deionized water to weak acidity, vacuum dry at 60℃ for 24h, take a certain amount Disperse the dried carbon nanotubes in deionized water, and ultrasonically disperse to obtain a carbon nanotube solution with a concentration of 6.0 mg / mL;
[0014] 2) Preparation of vitamin solution: Dissolve bacterial cellulose with a molecular weight of 500,000 in trifluoroacetic acid at room temperature to prepare a solution with a volume mass fraction (g / L) of 3.5%, and magnetically stir for 6 hours to obtain a transparent light Yellow cellulose trifluoroacetic acid solution;
[0015] 3) Preparation of composite solution: the carbon nanotube solution obtained in step 1) and the cellulose trifluoroacetic acid solution obtained in step 2) are mi...
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[0017] Example 2:
[0018] 1) Acidification of nanotubes: add 4.0g single-walled carbon nanotubes to 100ml HNO 3 / H 2 SO 4 (1:1) mixed acid, make a solution of 0.04g / mL, heat the solution to a boiling state and reflux for 70min, filter and wash with deionized water to weak acidity, vacuum dry at 60℃ for 24h, take a certain amount Disperse the dried carbon nanotubes in deionized water, and ultrasonically disperse to obtain a carbon nanotube solution with a concentration of 8.0 mg / mL;
[0019] 2) Preparation of vitamin solution: Dissolve bacterial cellulose with a molecular weight of 400,000 in trifluoroacetic acid at room temperature to prepare a solution with a volume mass fraction (g / L) of 5%, and magnetically stir for 6 hours to obtain transparent light Yellow cellulose trifluoroacetic acid solution;
[0020] 3) Preparation of composite solution: mix the carbon nanotube solution obtained in step 1), the carbon nanotube solution and the cellulose trifluoroacetic acid solution obtai...
Example Embodiment
[0022] Example 3:
[0023] 1) Acidification of nanotubes: 8.0g single-walled carbon nanotubes are added to 100ml HNO 3 / H 2 SO 4 (1:1) mixed acid, make a solution of 0.08g / mL, heat the solution to boiling state and reflux for 90min, filter and wash with deionized water to weak acidity, vacuum dry at 60℃ for 24h, take a certain amount Disperse the dried carbon nanotubes in deionized water, and ultrasonically disperse to obtain a carbon nanotube solution with a concentration of 10 mg / mL;
[0024] 2) Preparation of vitamin solution: Dissolve bacterial cellulose with a molecular weight of 300,000 in trifluoroacetic acid at room temperature to prepare a solution with a volume mass fraction (g / L) of 7%, and magnetically stir for 6 hours to obtain a transparent light Yellow cellulose trifluoroacetic acid solution;
[0025] 3) Preparation of composite solution: the carbon nanotube solution obtained in step 1) and the cellulose trifluoroacetic acid solution obtained in step 2) are mixed acco...
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