Preparation method for graphene fiber

A graphene fiber, graphene solution technology, applied in the direction of graphene, nano-carbon, etc., can solve the problems of rough structure of graphene fiber, complicated preparation process, low breaking strength, etc., to achieve uniform appearance and internal structure, and simple operation process. , the effect of low cost
CN102583334AInactive Publication Date: 2012-07-18BEIJING INSTITUTE OF TECHNOLOGYGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING INSTITUTE OF TECHNOLOGYGY
Publication Date
2012-07-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method for a graphene fiber and belongs to the field of graphene fiber preparation. The preparation method comprises the following steps: firstly, preparing 2-20 mg.mL<-1> purified graphene oxide solution by using an oxidation stripping graphite method; secondly, injecting the graphene oxide solution in the first step in a pipeline reactor with the inside diameter of 0.1-10 mm and sealing; thirdly, heating the pipeline reactor at the temperature of 100-300 DEG C for 1-6 hours and reducing and assembling the graphene oxide into a water-containing graphene oxide fiber; and fourthly, drying the water-containing graphene fiber obtained in the third step at the temperature of 20-60 DEG C and dehydrating and contracting the water-containing graphene fiber to obtain dry graphene fiber. The preparation method is simple in operation process and low in raw material cost; and the graphene fiber obtained by the method disclosed by the invention has the advantages of uniform structure, excellent mechanical property and easiness in functionalization.
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Description

technical field

[0001] The invention relates to a method for preparing graphene fibers, belonging to the field of graphene fiber preparation. Background technique

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

[0003] A major obstacle to the research and application of graphene is the effective assembly of graphene macrostructures. At present, the relatively successful assembly is to obtai...

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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