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Preparation method of conductive high-strength graphene-reinforced polymer fiber

A polymer and graphene technology, applied in the manufacture of conductive/antistatic filaments, can solve limitations and other problems, and achieve the effects of low cost, easy availability of raw materials, and good antistatic properties

Active Publication Date: 2012-12-19
杭州德烯科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, this graphene-enhanced composite material is only limited to membrane materials, and it has not been reported that it can be applied to other shapes of materials.

Method used

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  • Preparation method of conductive high-strength graphene-reinforced polymer fiber
  • Preparation method of conductive high-strength graphene-reinforced polymer fiber

Examples

Experimental program
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preparation example Construction

[0018] The preparation method of the graphene-reinforced polymer fiber of conductive high strength comprises the following steps:

[0019] 1) dissolving 1 part by weight of graphene oxide raw material in 50-5000 parts by weight of solvent, and treating it in an ultrasonic bath of 1-50 Hz for 0.1-1 hour to obtain a graphene oxide dispersion;

[0020] 2) Dissolving 1-1000 parts by weight of polymer in 20-4,000,000 parts by weight of solvent to obtain a polymer solution;

[0021] 3) Add the graphene oxide dispersion obtained in step 1) to the polymer solution obtained in step 2), add while stirring, continue stirring for 0.1 to 48 hours after the addition is complete, add a reducing agent, centrifuge or rotary steam, Concentrate, transfer to the spinning device, continuously extrude from the spinning head with a diameter of 5 ~ 1000μm, enter the coagulation liquid, stay for 1S ~ 100h, collect it on the roller after forming, and obtain continuous graphene-reinforced polymer fibers...

Embodiment 1

[0025] 1) Dissolving 1 part by weight of graphene oxide raw material in 50 parts by weight of water, and treating it in a 1 Hz ultrasonic bath for 0.1 hour to obtain a graphene oxide dispersion;

[0026] 2) Dissolving 1 part by weight of polyvinyl alcohol in 20 parts by weight of water to obtain a polyvinyl alcohol solution;

[0027] 3) Add the graphene oxide dispersion obtained in step 1) to the polyvinyl alcohol solution obtained in step 2), add while stirring, continue stirring for 0.1 hour after complete addition, add 1 part by weight of hydrazine, centrifuge, concentrate, transfer to into the spinning device, continuously extruded from a spinning head with a diameter of 5 μm at a constant speed, entered into acetone to stay for 1 second, and then collected on a roller to obtain continuous graphene-reinforced polyvinyl alcohol fibers.

[0028] Through the above steps, the diameter of the obtained polyvinyl alcohol fiber is 3-5 μm, and the graphene sheets are arranged along...

Embodiment 2

[0030] 1) Dissolving 1 part by weight of graphene oxide raw material in 5000 parts by weight of N,N-dimethylformamide, and treating it in an ultrasonic bath at 50 Hz for 1 hour to obtain a graphene oxide dispersion;

[0031] 2) Dissolving 1,000 parts by weight of polystyrene in 4,000,000 parts by weight of N,N-dimethylformamide to obtain a polystyrene solution;

[0032] 3) Add the graphene oxide dispersion obtained in step 1) to the polystyrene solution obtained in step 2), add while stirring, continue to stir for 48 hours after the addition is complete, add phenylhydrazine, spin evaporate, concentrate, turn into the spinning device, continuously extruded from a spinning head with a diameter of 1000 μm at a constant speed, entered into an aqueous calcium chloride solution for 100 hours, and then collected on a roller to obtain continuous graphene-reinforced polystyrene fibers.

[0033] Through the above steps, the diameter of the obtained polystyrene fiber is 500-800 μm, and t...

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Abstract

The invention discloses a preparation method of conductive high-strength graphene-reinforced polymer fiber, which comprises the following steps of: (1) dissolving a graphene oxide raw material in solvent, and carrying out ultrasonic treatment to obtain graphene oxide dispersion; (2) dissolving a polymer in solvent to obtain a polymer solution; and (3) adding the graphene oxide dispersion obtained in the step (1) to the polymer solution obtained in the step (2) under stirring, continuing stirring after complete addition, adding a reducing agent, centrifuging or carrying out rotary evaporation treatment, concentrating, transferring to a spinning device, continuously extruding from a spinning head at uniform speed, forming after entering a solidifying solution, and collecting to a roller to obtain continuous graphene-reinforced polymer fiber. The preparation method is simple and convenient, low in cost and multiple in used polymer variety, and is suitable for large-scale industrialized production; and the produced fiber has excellent mechanical property and better conductivity, and can be used for power transmission, antistatic textile, engineering material engineering material and other fields.

Description

technical field [0001] The invention relates to a graphene-reinforced polymer fiber, in particular to a preparation method of a conductive, high-strength, and high-toughness graphene-reinforced polymer fiber. Background technique [0002] Graphene is a layer of carbon atoms with sp 2 Two-dimensional materials formed by connecting hybrid phases. Since 2004 by A. K. Geim (K. S. Novoselov, et al. Science, 2004, 306 , 666-669) discovery has aroused widespread concern in the scientific and industrial circles. This material has the highest strength known (Science, 2008, 321 , 385-388), excellent electrical and thermal conductivity. Using natural graphite as raw material, the mass production of graphene can be realized by chemical oxidation-reduction method (Tung, V. C., et al. Nature Nanotechnol., 2009, 4 , 25–29). Graphene produced by this method has been widely used in various composite materials, thereby increasing the mechanical properties, electrical and thermal conduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/09
Inventor 高超寇亮
Owner 杭州德烯科技集团有限公司
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