Preparation method of graphene oxide hollow fiber and graphene hollow fiber

A technology of graphene and graphene solution, which is applied in the manufacture of hollow filaments, fiber chemical characteristics, wet spinning, etc., can solve the problems of continuous production and post-processing, such as long time for impurity removal, and the inability to realize large batches, etc. And the effect of uniform internal structure, excellent mechanical properties, and simple operation process
CN103031618AActive Publication Date: 2013-04-10BEIJING TUNGHSU CARBON ADVANCED MATERIALS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING TUNGHSU CARBON ADVANCED MATERIALS TECH CO LTD
Publication Date
2013-04-10

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Abstract

The invention relates to a preparation method of a graphene oxide hollow fiber and a graphene hollow fiber, and belongs to the technical field of graphene oxide and graphene material preparation. The method comprises the following steps that an outer layer solution and an inner layer solution are respectively input into an outer layer and an inner layer of a coaxial needle head; the outer layer solution is injected into a receiving solution to form an aqueous graphene oxide hollow fiber, and then dried to form a graphene oxide hollow fiber; and the graphene oxide hollow fiber is reduced to a graphene hollow fiber. The outer layer solution is a 20-25mg.mL<-1> graphene oxide solution; the inner layer solution and the receiving solution are methanol solutions of KCL with a mass concentration greater than or equal to 3mol / L; the flow velocity of the inner layer solution is 0.6ml / min; and the flow velocity of the outer layer solution is greater than or equal to 0.1ml / s. According to the preparation method, the graphene oxide hollow fiber and the graphene hollow fiber can be prepared respectively in different steps of one method, the operation is easy and simple, aftertreatment and edulcoration are not required, the cost is low, and mass continuous production can be conducted.
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Description

technical field

[0001] The invention relates to a method for preparing graphene oxide and graphene hollow fibers. The method is a wet spinning method and belongs to the technical field of graphene oxide and graphene material preparation. Background technique

[0002] Single-layer sheet-like graphene (Graphene) composed of carbon atoms has high mechanical strength, elasticity, thermal conductivity and electron mobility (100,000cm 2 ·V -1 ·s -1 ). Graphene can be used in field-effect transistors, high-frequency devices, super microprocessors and single-molecule detectors. The three-dimensional structural materials composed of graphene as the basic unit, such as thin films and bulk materials, can be applied to the fields of functional materials such as controllable gas permeability films, anisotropic ion conductors, supercapacitors, lithium-ion batteries, and energy catalysis.

[0003] One of the main problems in the research and application of graphene is the effective ass...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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