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Graphene modified conductive protein fiber and its preparation method and application

A protein fiber, graphene modification technology, applied in the direction of plant fiber, animal fiber, fiber processing, etc., can solve the problems of strong toxicity or corrosiveness, threats to the health of workers and the surrounding environment, difficulty in obtaining reduction effects, etc. Simple, low cost, easy to scale production effect

Active Publication Date: 2021-02-23
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these reagents are often highly toxic or corrosive, posing a serious threat to the health of workers and the surrounding environment
For this reason, people have tried to use ascorbic acid and chitosan as reducing agents to reduce graphene oxide, but it is found that these reducing agents are difficult to obtain better reduction effect under longer reaction time.

Method used

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  • Graphene modified conductive protein fiber and its preparation method and application
  • Graphene modified conductive protein fiber and its preparation method and application
  • Graphene modified conductive protein fiber and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preparation of graphene modified conductive wool fiber

[0049] Graphene oxide was prepared using an improved Hummer's method to obtain a graphene oxide solution with a particle size of 1 μm, and the resulting graphene oxide solution was diluted with water to obtain a 2 mg / ml graphene oxide solution. Then wool fiber is soaked in described graphene oxide solution with the weight ratio of graphene oxide and wool fiber as 1:10, makes graphene oxide carry out surface modification to wool fiber, continues 2 hours, obtains graphene oxide modification. permanent wool fiber.

[0050] The obtained graphene oxide modified wool fiber is placed in sodium hydroxymethyl sulfinate aqueous solution with the weight ratio of sodium hydroxymethyl sulfinate and graphene oxide modified wool fiber at 1:10, and the mixture is placed in Heating at 80° C. for 1.5 hours, so that the graphene oxide-modified wool fiber undergoes a reduction reaction, so as to obtain graphene-modified conductive w...

Embodiment 2

[0053] Preparation of graphene-modified conductive mulberry silk fiber

[0054] Graphene oxide was prepared using a modified Hummer's method to obtain a solution of graphene oxide with a particle size of 1 μm. The resulting graphene oxide solution was diluted with water to obtain a 2 mg / ml graphene oxide solution. Then the mulberry silk fiber is soaked in the graphene oxide solution with the weight ratio of graphene oxide and mulberry silk fiber being 3:10, so that graphene oxide carries out surface modification to the mulberry silk fiber for 2 hours to obtain oxidation Graphene modified mulberry silk fiber.

[0055]The obtained graphene oxide modified mulberry silk fiber is placed in an aqueous solution of hydroxymethyl sulfinic acid with a weight ratio of hydroxymethanesulfinic acid and graphene oxide modified mulberry silk fiber of 3:10, and the mixture is placed in Heating at 100° C. for 1 hour, so that the graphene oxide-modified mulberry silk fiber undergoes a reductio...

Embodiment 3

[0058] Preparation of graphene-modified conductive rabbit hair fibers

[0059] Graphene oxide was prepared using a modified Hummer's method to obtain a solution of graphene oxide with a particle size of 5 μm. The obtained graphene oxide solution was diluted with water to obtain a 5 mg / ml graphene oxide solution. Then rabbit hair fiber is soaked in described graphene oxide solution with the weight ratio of graphene oxide and rabbit hair fiber as 2:10, makes graphene oxide carry out surface modification to rabbit hair fiber, continues 2 hours, to obtain oxidation Graphene modified rabbit hair fiber.

[0060] The obtained graphene oxide modified rabbit hair fiber is placed in the 3-methyl ammonium sulfinate aqueous solution at 2:10 with the weight ratio of 3-ammonium methylsulfinate and graphene oxide modified rabbit hair fiber, And the mixture is heated at 85° C. for 0.5 hour, so that the graphene oxide modified rabbit hair fiber undergoes a reduction reaction, so as to obtain...

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Abstract

The invention provides a method for preparing graphene-modified conductive protein fibers, which includes combining graphene oxide and protein fibers in a graphene oxide solution to obtain graphene oxide-modified protein fibers by means of surface modification; and reducing the graphene oxide-modified protein fiber in an aqueous solution of sulfinic acid compound at a temperature of 50° C. to 100° C. to obtain graphene-modified conductive protein fiber. The resistance of the obtained graphene-modified conductive protein fibers is 1×10 1 Ω to 1×10 5 Ω, after the washing resistance test, the absolute value of the change rate of the resistance is 5% to 70%, so it has excellent washing resistance and electrical conductivity. The invention also provides the graphene-modified conductive protein fiber obtained by the method. In addition, the present invention also provides the use of the graphene-modified conductive protein fiber in smart sensors, electromagnetic shielding, electrothermal medical supplies, conductive textiles or antistatic textiles.

Description

technical field [0001] The present invention relates to a modified conductive fiber, its preparation method and use, in particular, to a graphene-modified conductive protein fiber, its preparation method and use. Background technique [0002] Graphene is a two-dimensional monoatomic layer sheet crystal material formed by sp2 hybridized carbon atoms closely arranged in a honeycomb hexagonal structure. The special nanostructure makes it have excellent strength, electrical conductivity, thermal conductivity and other properties, so it shows great application potential in the fields of composite materials, smart materials, electronic devices, energy storage and drug carriers. At the same time, due to the ultra-thin flexible structure and excellent performance characteristics of graphene, its application in the field of textile fiber materials is becoming more and more extensive, such as pure graphene fibers, graphene composite fibers, graphene-coated fibers and textiles. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/74D06M101/12D06M101/10D06M101/04
CPCD06M11/74D06M2101/04D06M2101/10D06M2101/12
Inventor 曲丽君朱士凤赵洪涛田明伟赵银桃张宪胜郭肖青
Owner QINGDAO UNIV