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A kind of spiral graphene fiber and its preparation method and application

A graphene fiber and helical technology, applied in the field of material science, can solve the problems that the helical graphene fiber pitch and wire diameter are difficult to control, cannot achieve continuous and high output, and achieve the effect of simple assembly and low cost

Active Publication Date: 2020-02-14
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problem that the helical graphene fiber pitch and wire diameter are difficult to control in the prior art, and cannot achieve continuous and high output, and provides a preparation method for the helical graphene fiber, which can be continuously and High-yield preparation of helical graphene fibers with controllable pitch and wire diameter

Method used

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  • A kind of spiral graphene fiber and its preparation method and application
  • A kind of spiral graphene fiber and its preparation method and application
  • A kind of spiral graphene fiber and its preparation method and application

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preparation example Construction

[0030] The object of the present invention is achieved by the following technical scheme: a kind of preparation method of helical graphene fiber, comprises the following steps:

[0031] (1) The preparation of spinning device, this device is made of capillary A, capillary B, capillary C and sampling tube, as respectively figure 1 (a), figure 1 (b) and figure 1 as shown in (c);

[0032] (2) Insert part of capillary A into capillary B, so that one end of capillary A is located outside capillary B, and the other end is located inside capillary B; drip epoxy resin at the overlap between capillary A and capillary B, due to the epoxy resin Infiltration, the gap of at least one cross-section of the overlapping part of capillary A and capillary B is filled with epoxy resin, so that capillary A and capillary B are bonded and fixed to obtain assembly A; the outer diameter of capillary A is smaller than or equal to capillary B The inner diameter of the assembly A such as figure 2 sho...

Embodiment 1

[0044] Present embodiment is the preparation method of finer helical graphene fiber of line diameter, comprises the following steps:

[0045] (1) the preparation of spinning device, this device is made of capillary A, capillary B, capillary C and sampling tube;

[0046] (2) Insert part of capillary A into capillary B, so that one end of capillary A is located outside capillary B, and the other end is located inside capillary B; drip epoxy resin at the overlap between capillary A and capillary B, due to the epoxy resin Infiltration, the gap of at least one cross-section of the overlapping part of capillary A and capillary B is filled with epoxy resin, so that capillary A and capillary B are bonded and fixed to obtain assembly A; the outer diameter of capillary A is smaller than or equal to capillary B The inner diameter of; Assembly A;

[0047] (3) Insert assembly A obtained in step (2) into capillary C, so that the port of capillary A located outside capillary B is located in...

Embodiment 2

[0057] Present embodiment is the preparation method of thicker helical graphene fiber of line diameter, comprises the following steps:

[0058] (1) the preparation of spinning device, this device is made of capillary A, capillary B, capillary C and sampling tube;

[0059] (2) Insert part of capillary A into capillary B, so that one end of capillary A is located outside capillary B, and the other end is located inside capillary B; drip epoxy resin at the overlap between capillary A and capillary B, due to the epoxy resin Infiltration, the gap of at least one cross-section of the overlapping part of capillary A and capillary B is filled with epoxy resin, so that capillary A and capillary B are bonded and fixed to obtain assembly A; the outer diameter of capillary A is smaller than or equal to capillary B The inner diameter of; Assembly A;

[0060] (3) Insert assembly A obtained in step (2) into capillary C, so that the port of capillary A located outside capillary B is located ...

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Abstract

The invention relates to a spiral graphene fiber and a preparation method and an application thereof, and belongs to the field of material science. The method comprises the following steps: (1) a capillary A, a capillary B and a capillary C are subjected to coaxial assembly; (2) a sample introduction tube A is connected with a port of the capillary C at an S end, and a hole is formed in the wall of the capillary C, the hole is located at a part between the N end of the assembly body and a port, nearest to the N end, of the capillary B, and a sample introduction tube B is connected with the hole, and a spinning device is obtained; and (3) a graphene oxide spinning solution and a polysaccharide solution are respectively introduced into the spinning device through the sample introduction tubeA and the sample introduction tube B, and the spiral graphene oxide fiber is prepared by controlling the flow speeds of the two fluids, and finally, the graphene oxide fiber is reduced to obtain thespiral graphene fiber. The preparation method has simple operation and is suitable for continuous and batch preparation of hollow graphene fibers.

Description

technical field [0001] The invention belongs to the field of material science, and in particular relates to a spiral graphene fiber and a preparation method and application thereof. Background technique [0002] Fibers are natural or synthetic filamentous substances. Fibers with different structures or materials have been used in various fields such as medical treatment, textiles, aerospace, environmental restoration, energy storage and flame retardancy. Graphene fiber is obtained by macroscopic assembly of graphene sheets. It has good thermal conductivity, electrical conductivity, large specific surface area and excellent mechanical properties. It has high application value and has been used in flexible electronic devices. , wearable energy storage devices, tissue engineering, and environmental restoration. Gao Chao et al. of Zhejiang University first assembled high-concentration graphene oxide into graphene oxide fibers through wet spinning technology, and then reduced th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/12
CPCD01F9/12
Inventor 刘笔锋董悦
Owner HUAZHONG UNIV OF SCI & TECH