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Nanocellulose-polypyrrole-polyvinyl alcohol composite conductive hydrogel as well as preparation method and application thereof

A technology of nanocellulose and polyvinyl alcohol, which is used in fiber raw material processing, textile and papermaking, etc., can solve the problem of nanocellulose-polypyrrole-polyvinyl alcohol composite conductive hydrogel that does not have good mechanical properties and electrical conductivity. and other problems, to achieve the effects of good mechanical properties, improved mechanical strength, and high electrical conductivity

Inactive Publication Date: 2017-03-15
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] At present, there is no nanocellulose-polypyrrole-polyvinyl alcohol composite conductive hydrogel with good mechanical properties and conductive properties on the market.

Method used

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  • Nanocellulose-polypyrrole-polyvinyl alcohol composite conductive hydrogel as well as preparation method and application thereof
  • Nanocellulose-polypyrrole-polyvinyl alcohol composite conductive hydrogel as well as preparation method and application thereof
  • Nanocellulose-polypyrrole-polyvinyl alcohol composite conductive hydrogel as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] In step 1, the cellulose is prepared into nanocellulose through chemical and mechanical treatment, and the specific method steps include:

[0084] (1) Chemical treatment method:

[0085] 1) Add 204g of deionized water to the beaker, weigh 196g of concentrated sulfuric acid with a mass fraction of 98%, drain the concentrated sulfuric acid with a glass rod and slowly add it to the deionized water, stir magnetically for 12 hours, and cool to room temperature to prepare 400g of concentrated sulfuric acid with a mass fraction of 48 % of sulfuric acid for standby;

[0086] 2) The temperature of the taken sulfuric acid oil bath is stabilized to 44-45°C, and the stirring is continued;

[0087] 3) Weighing 20g of bleached wood pulp fiber, adding in batches to 400g of sulfuric acid solution with a mass fraction of 48% continuously stirred;

[0088] 4) After one hour of reaction, a large amount of deionized water was added to terminate the reaction. The obtained suspension was ...

Embodiment 2

[0104] In step 1, the cellulose is prepared into nanocellulose through chemical and mechanical treatment, and the specific method steps include:

[0105] (1) Chemical treatment method:

[0106] 1) Add 204g of deionized water to the beaker, weigh 196g of concentrated sulfuric acid with a mass fraction of 98%, drain the concentrated sulfuric acid with a glass rod and slowly add it to the deionized water, stir magnetically for 12 hours, and cool to room temperature to prepare 400g of concentrated sulfuric acid with a mass fraction of 48 % of sulfuric acid for standby;

[0107] 2) The temperature of the taken sulfuric acid oil bath is stabilized to 44-45°C, and the stirring is continued;

[0108] 3) Weighing 20g of bleached wood pulp fiber, adding in batches to 400g of sulfuric acid solution with a mass fraction of 48% continuously stirred;

[0109] 4) After one hour of reaction, a large amount of deionized water was added to terminate the reaction. The obtained suspension was ...

Embodiment 3

[0125] In step 1, the cellulose is prepared into nanocellulose through chemical and mechanical treatment, and the specific method steps include:

[0126] (1) Chemical treatment method:

[0127] 1) Add 204g of deionized water to the beaker, weigh 196g of concentrated sulfuric acid with a mass fraction of 98%, drain the concentrated sulfuric acid with a glass rod and slowly add it to the deionized water, stir magnetically for 12 hours, and cool to room temperature to prepare 400g of concentrated sulfuric acid with a mass fraction of 48 % of sulfuric acid for standby;

[0128] 2) The temperature of the taken sulfuric acid oil bath is stabilized to 44-45°C, and the stirring is continued;

[0129] 3) Weighing 20g of bleached wood pulp fiber, adding in batches to 400g of sulfuric acid solution with a mass fraction of 48% continuously stirred;

[0130] 4) After one hour of reaction, a large amount of deionized water was added to terminate the reaction. The obtained suspension was ...

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Abstract

The invention belongs to the field of polymer composite conductive materials, and discloses a nanocellulose-polypyrrole-polyvinyl alcohol composite conductive hydrogel as well as a preparation method and application thereof. The hydrogel is prepared by adopting the following method: a, preparing nanocellulose; b, polymerizing on the surface layer of the nanocellulose to obtain a nanocellulose-polypyrrole compound; c, adding a cross-linking agent and polyvinyl alcohol in a nanocellulose-polypyrrole compound solution, and stirring to form gel, thus obtaining a finished product. The hydrogel can be used for preparing a flexible conductive material, 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 nanocellulose-polypyrrole-polyvinyl alcohol composite conductive hydrogel and a preparation method and application thereof. Background technique [0002] Hydrogel is a three-dimensional network polymer formed by water-soluble polymers cross-linked or copolymerized with hydrophobic monomers. Smart hydrogels refer to hydrogels that are stimuli-responsive to changes in the external environment. They are a type of functional material that can integrate perception, drive and information processing, and have intelligent properties. Under the stimulation of external physical and chemical factors, The properties of these polymer hydrogels will change accordingly, so they have broad application prospects in the field of microenvironment sensing. Conductive hydrogels, as a class of smart hydrogels, have received extensive attention in recent years. Conductive hydroge...

Claims

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Application Information

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IPC IPC(8): C08L1/02C08L79/04C08L29/04C08K3/38C08G73/06D21C5/00
CPCC08G73/0611C08L1/02C08L2203/20C08L2205/03D21C5/00C08L79/04C08L29/04C08K2003/387
Inventor 韩景泉丁琴琴徐信武岳一莹黄超伯鲍雅倩王慧祥王思伟陆凯悦郁辰尤立行陈敏峰
Owner NANJING FORESTRY UNIV
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