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

A graphene fiber and hollow technology, which is applied in the field of material science, can solve the problems that hollow fibers cannot realize continuous and batch production, and achieve the effect of low production cost and high output

Active Publication Date: 2020-02-21
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problem that the preparation of hollow fibers in the prior art cannot be realized continuously and in batches, and provides a hollow graphene fiber and its preparation method and application. The method can controllably, continuously and batch-prepared Single and multi-hollow graphene fibers

Method used

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

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preparation example Construction

[0034] The object of the present invention is achieved by the following technical scheme: a kind of preparation method of many hollow graphene fibers comprises the following steps:

[0035] (1) Prepare circular hollow SU-8 disc substrates (such as figure 1 shown).

[0036] (2) Assemble the SU-8 disc substrate obtained in step (1) and the thin glass capillary A matching its circular hollow size, and use quick-drying glue to contact the SU-8 disc substrate with the thin glass capillary places to fix (such as figure 2 shown).

[0037] (3) Insert the assembly of the SU-8 wafer substrate and the thin glass capillary obtained in step (2) into the thick glass capillary B, and fix it with quick-drying adhesive.

[0038] (4) Connect the sampling tube on different capillaries to obtain the spinning device (such as image 3 shown). One of the ends of the spinning device is set as the S end, and the other end is set as the N end; the sampling tubes A are respectively connected to the ...

Embodiment 1

[0049] This embodiment is a preparation method for a single hollow graphene fiber with a cross section, comprising the following steps:

[0050] (1) Utilize photolithography to prepare a single hollow SU-8 wafer on a silicon wafer, such as figure 1 (a), and peel them off from the silicon wafer.

[0051] (2) Assemble the SU-8 disc obtained in step (1) and the thin glass capillary A matching its circular hollow size, so that all the boundary parts of the circular holes on the SU-8 disc are fixed to the capillary The outer wall of A, and make the SU-8 disc perpendicular to the capillary A, and use quick-drying glue to fix the place where the SU-8 disc contacts the thin glass capillary A, such as figure 2 (a) shown.

[0052] (3) Insert the assembly of SU-8 disc and thin glass capillary A obtained in step (2) into the thick glass capillary B, so that all the boundary parts of the substrate are fixed to the inner wall of capillary B, and the SU-8 The disc is perpendicular to cap...

Embodiment 2

[0062] The present embodiment is the preparation method of the graphene fiber that cross section is double hollow, comprises the following steps:

[0063] (1) Utilize the photolithography method to prepare the SU-8 disc with double hollow on the silicon wafer, as figure 1 (b), and peel them off from the silicon wafer.

[0064] (2) Assemble the SU-8 disc obtained in step (1) and the thin glass capillary A matching its circular hollow size, so that all the boundary parts of the circular holes on the SU-8 disc are fixed to the capillary The outer wall of A, and make the SU-8 disc perpendicular to the capillary A, and use quick-drying glue to fix the place where the SU-8 disc contacts the thin glass capillary A, such as figure 2 (b) shown.

[0065] (3) Insert the assembly of SU-8 disc and thin glass capillary A obtained in step (2) into the thick glass capillary B, so that all the boundary parts of the substrate are fixed to the inner wall of capillary B, and the SU-8 The disc...

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Abstract

The invention relates to a hollow graphene fiber as well as preparation method thereof and application, belonging to material science field, the method includes the following steps: (1) preparing a substrate with at least one round orifice; (2) assembling the substrate with capillary tube A and B, connecting the sampling tube A to the capillary tube A, opening a hole on the wall of the capillary tube B and connecting the sampling tube B to the hole to obtain a spinning device; (3) preparing oxidized graphene fiber with different quantities and diameters through the spinning device and obtaining hollow graphene fiber by reduction finally, the preparation method provided by the invention is simple and practicable and has high precision, which is applicable to continuous and batch preparationof hollow graphene fiber.

Description

technical field [0001] The invention belongs to the field of material science, and in particular relates to a hollow graphene fiber and a preparation method and application thereof. Background technique [0002] Fibers are natural or synthetic filamentous substances. In modern life, the application of fibers is ubiquitous, and fibers with different properties are used in different fields. After seaweed carbon fiber is made into clothes, it can cause long-term friction of human body molecules to generate thermal reaction when worn, and promote blood circulation in the body; clothes made of anti-ultraviolet radiation fibers can reduce the trouble of us holding umbrellas in summer; flame-retardant fibers have flame-retardant, The effect of heat insulation and anti-droplet, its application performance, safety performance and added value are greatly improved, and can be widely used in civil, industrial and military fields; viscose-based carbon fiber helps missiles wear "heat-proo...

Claims

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Application Information

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