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Electrospun yarn with hydrophobic graphene composite macromolecular fiber and preparation method of electrospun yarn

A graphene composite, polymer fiber technology, applied in electrospinning, fiber processing, rayon manufacturing and other directions, can solve the problems of fiber breakage, non-filamentation, large preparation, etc., and achieves short reaction time, high degree of industrialization, Overcoming the effect of spinning discontinuities

Inactive Publication Date: 2019-07-30
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the preparation of composite nanofibers with high graphene content, due to the large size of graphene in the transverse direction, it is easy to cause fiber breakage or non-filament formation, and the preparation is difficult, so there is no relevant report and research

Method used

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  • Electrospun yarn with hydrophobic graphene composite macromolecular fiber and preparation method of electrospun yarn
  • Electrospun yarn with hydrophobic graphene composite macromolecular fiber and preparation method of electrospun yarn
  • Electrospun yarn with hydrophobic graphene composite macromolecular fiber and preparation method of electrospun yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method for electrospinning of hydrophobic graphene modified polymer fibers, comprising the steps of:

[0032] (1) Graphene, polymethyl methacrylate and solvent dimethyl formamide are mixed and heated to 70°C for 10 hours with heating and stirring. In terms of mass fraction, 0.1% of graphene, 20% of polymethyl methacrylate, and the balance is solvent dimethylformamide;

[0033] (2) Then the spinning solution is ultrasonicated in a water bath at room temperature for 4 hours; the ultrasonic spinning solution is put into a syringe, see figure 1 , set up the receiver, set up the electrospinning device, the distance between the nozzle and the receiver is 10-20cm;

[0034] (3) Electrospinning is carried out under the condition of 12kv voltage, spinning solution flow rate 2.0-4.0mL / h, and then obtains the electrospinning of hydrophobic graphene modified polymer fiber (see figure 2 , 3 ).

Embodiment 2

[0036] A preparation method for electrospinning of hydrophobic graphene modified polymer fibers, comprising the steps of:

[0037] (1) Graphene, polymethyl methacrylate and solvent dimethyl formamide are mixed and heated to 70°C for 10 hours with stirring, in terms of mass fraction, 1.5% of graphene, 20% of polymethyl methacrylate, and the balance is solvent dimethylformamide;

[0038] (2) The spinning solution is then ultrasonically placed in a water bath for 4 hours; the ultrasonically placed spinning solution is put into a syringe, the receiver is set, and the electrospinning device is set up. The distance between the nozzle and the receiving receiver is 10-20 cm;

[0039] (3) Electrospinning is carried out under the conditions of 12kv voltage and spinning solution flow rate of 2.0-4.0mL / h (see image 3 ).

Embodiment 3

[0041] A preparation method for electrospinning of hydrophobic graphene modified polymer fibers, comprising the steps of:

[0042] (1) Graphene, polymethyl methacrylate and solvent dimethyl formamide are mixed and heated to 70°C for 10 hours with heating and stirring. In terms of mass fraction, 3% of graphene, 20% of polymethyl methacrylate, and the balance is solvent dimethylformamide;

[0043] (2) Then the spinning solution is ultrasonicated for 4 hours in a water bath at room temperature; the spinning solution after ultrasonic is packed into a syringe, the receiver is set, and the electrospinning device is built. The distance between the nozzle and the receiving receiver is 10- 20cm;

[0044] (3) Electrospinning is carried out under the conditions of 12kv voltage and spinning solution flow rate of 2.0-4.0mL / h (see image 3 , 4 ).

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Abstract

The invention relates to the field of nano materials, in particular to a preparation method of an electrospun yarn with hydrophobic graphene composite macromolecular fiber. Graphene and hydrophobic macromolecules are used as raw materials and then are electrospun by an electrospinning method to obtain the electrospun yarn with hydrophobic graphene composite macromolecular fiber. The preparation method solves the problem that a macromolecular material and the graphene are mixed and dissolved and then are agglomerated and the problem that discontinuous spinning, non filamentation and the like occur in the preparation of the composite fiber by the electrospinning method. The preparation method of the electrospun yarn of the invention is quick, simple, short in reaction time and high in graphene content; the fiber material is environmentally friendly; the application field is wide; the industrialization degree is high; the practical value is outstanding.

Description

technical field [0001] The invention relates to the field of nanomaterials, in particular to an electrospinning preparation method of hydrophobic graphene composite polymer fibers. Background technique [0002] Graphene nanomaterials include single-layer graphene and multi-layer graphene, that is, two-dimensional sheet-like crystal materials with a thickness of one or more carbon atoms that are densely arranged in a honeycomb shape. Compared with other carbon materials, graphene has a perfect large π conjugated system and the thinnest single-layer atomic thickness structure, which makes graphene have excellent and unique optical, electrical, thermal, mechanical and other physical properties and chemical properties. nature. [0003] The composite of graphene and fiber materials, the constructed functional fiber materials have excellent adsorption, catalysis, photothermal and electrical properties. At present, there are many methods for preparing graphene fibers, among which...

Claims

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Application Information

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IPC IPC(8): D01F6/52D01F1/10D01D5/00
CPCD01D5/0007D01F1/10D01F6/52
Inventor 张雪娇李登宇赵青张思玉
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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