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Carbon nanotube-nano-crystalline cellulose-polyvinyl alcohol composite conductive gel and preparation method and application thereof

A technology of nanocellulose and carbon nanotubes, which is applied in the field of carbon nanotube-nanocellulose-polyvinyl alcohol composite conductive gel and its preparation, can solve the problem of carbon nanotube-nanotube-nanometer which does not have good mechanical properties and electrical conductivity. cellulose-polyvinyl alcohol composite conductive gel, etc., to achieve the effect of enhancing mechanical properties, simple process flow, and uniform size

Inactive Publication Date: 2017-05-31
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no carbon nanotube-nanocellulose-polyvinyl alcohol composite conductive gel with good mechanical properties and electrical conductivity.

Method used

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  • Carbon nanotube-nano-crystalline cellulose-polyvinyl alcohol composite conductive gel and preparation method and application thereof
  • Carbon nanotube-nano-crystalline cellulose-polyvinyl alcohol composite conductive gel and preparation method and application thereof
  • Carbon nanotube-nano-crystalline cellulose-polyvinyl alcohol composite conductive gel and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Step 1, the preparation of carbon nanotube dispersion liquid and nanocellulose suspension, its specific method step comprises:

[0061] (1) Prepare an aqueous solution of sodium dodecylbenzenesulfonate with a mass fraction of 1%. (2) Add multilayer-walled carbon nanotubes and ultrasonically disperse for 10 minutes at a power of 700w to prepare a carbon nanotube dispersion with a mass fraction of 0.35%, which is stored for future use. (3) Take 20 g of pulverized absorbent cotton and add it to 400 g of sulfuric acid with a mass fraction of 48%, and carry out acidolysis under magnetic stirring in a constant temperature water bath at 45°C. (4) After 60 minutes, deionized water was added to terminate the acid hydrolysis reaction, and the resulting mixture was rinsed repeatedly with deionized water, and then transferred to a dialysis bag for dialysis for 3 days until the pH was neutral. (5) Ultrasonic pulverize the above mixture for 150 minutes at a power of 900w, and then a...

Embodiment 2

[0065] Step 1, the preparation of carbon nanotube dispersion liquid and nanocellulose suspension, its specific method step comprises:

[0066] (1) Prepare an aqueous solution of sodium dodecylbenzenesulfonate with a mass fraction of 1%. (2) Add multilayer-walled carbon nanotubes, ultrasonically disperse for 10 minutes at a power of 700w, and prepare a carbon nanotube dispersion with a mass fraction of 0.35%, and store it for future use. (3) Take 20 g of pulverized absorbent cotton and add it to 400 g of sulfuric acid with a mass fraction of 48%, and carry out acidolysis under magnetic stirring in a constant temperature water bath at 45°C. (4) After 60 minutes, deionized water was added to terminate the acid hydrolysis reaction, and the resulting mixture was rinsed repeatedly with deionized water, and then transferred to a dialysis bag for dialysis for 3 days until the pH was neutral. (5) Ultrasonic pulverize the above mixture for 150 minutes at a power of 900w, and then adjus...

Embodiment 3

[0070] Step 1, the preparation of carbon nanotube dispersion liquid and nanocellulose suspension, its specific method step comprises:

[0071] (1) Prepare an aqueous solution of sodium dodecylbenzenesulfonate with a mass fraction of 1%. (2) Add multilayer-walled carbon nanotubes and ultrasonically disperse for 10 minutes at a power of 700w to prepare a carbon nanotube dispersion with a mass fraction of 0.35%, which is stored for future use. (3) Take 20 g of pulverized absorbent cotton and add it to 400 g of sulfuric acid with a mass fraction of 48%, and carry out acidolysis under magnetic stirring in a constant temperature water bath at 45°C. (4) After 60 minutes, deionized water was added to terminate the acid hydrolysis reaction, and the resulting mixture was rinsed repeatedly with deionized water, and then transferred to a dialysis bag for dialysis for 3 days until the pH was neutral. (5) Ultrasonic pulverize the above mixture for 150 minutes under the power of 900w, and t...

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Abstract

The invention belongs to the field of macromolecule composite conductive materials, and discloses a carbon nanotube-nano-crystalline cellulose-polyvinyl alcohol composite conductive gel and a preparation method and application thereof. The gel is prepared from the following steps: a: preparing carbon nanotube dispersion liquid; b: preparing nano-crystalline cellulose suspension; c: taking the mixture of the carbon nanotube and the nano-crystalline cellulose, adding the mixture into polyvinyl alcohol aqueous solution, adding a crosslinking agent, stirring until gel is formed to obtain the gel. The gel can be used for preparing flexible conductive materials and has a better application prospect.

Description

technical field [0001] The invention belongs to the field of polymer composite conductive materials, and relates to a carbon nanotube-nanocellulose-polyvinyl alcohol composite conductive gel and a preparation method and application thereof. Background technique [0002] Polyvinyl alcohol (PVA) hydrogel is a water-swellable body with a network structure formed after hydrophilic polyvinyl alcohol macromolecules are cross-linked. Many hydroxyl groups on the PVA molecular chain are easy to form hydrogen bonds, so PVA hydrogel has stable chemical properties, easy to shape, good biocompatibility, non-toxic and harmless, these characteristics make PVA hydrogel can be used as wound Dressings, drug release carriers, tissue engineering and other biomedical fields. In order to improve the mechanical properties of PVA hydrogel and expand the application field, PVA hydrogel is often compounded with other materials. PVA hydrogel is added with nanocellulose to enhance mechanical properti...

Claims

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Application Information

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IPC IPC(8): C08L29/04C08L1/02C08K7/24C08J3/075C08J3/24
Inventor 韩景泉王慧祥徐信武岳一莹丁琴琴鲍雅倩陆凯悦王思伟陈敏峰尤立行郁辰
Owner NANJING FORESTRY UNIV
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