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Preparation method of graphene oxide-doped composite nanofiber yarn

A composite nanofiber, nanofiber technology, applied in fiber processing, yarn, conductive/antistatic filament manufacturing, etc., can solve problems such as poor processability and mechanical properties, limited application, etc., to achieve broad application prospects, excellent mechanical properties Effects of performance and conductivity

Inactive Publication Date: 2019-04-30
穆凯鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most nanomaterials are randomly arranged, and their poor processability and mechanical properties limit their applications in many fields.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The preparation method of the composite nanofiber yarn of doping graphene oxide, comprises the steps:

[0018] (1) Preparation of spinning solution;

[0019] Dissolve graphene oxide in N-N dimethylformamide and sonicate for 5 h, then dissolve polyacrylonitrile powder in a uniform GO dispersion, and stir and dissolve with a magnetic stirrer to obtain a doped solution with a mass fraction of 10%. The PAN spinning solution of graphene oxide, the temperature is 60%, and the time is 3h;

[0020] (2) Preparation of electrospun PAN-GO nanofiber yarn;

[0021] Electrospinning is carried out by using a double conjugated electrospinning device to obtain PAN-GO nanofiber yarn; the parameters of electrospinning are: the mass fraction of polyacrylonitrile solution is 10%, graphene accounts for 0.5% of the mass of polyacrylonitrile, and the voltage is 16 ~J8 kV, the total flow rate of spinning solution is 2.0~4.4 mL / h, the solution flow ratio of positive and negative nozzles is 1:3...

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Abstract

The invention relates to the technical field of textiles, and in particular to a preparation method of a graphene oxide-doped composite nanofiber yarn. The preparation method of the graphene oxide-doped composite nanofiber yarn comprises the following steps of: (1), preparation of spinning solution; (2), preparation of an electrospun PAN-GO nanofiber yarn; and (3), preparation of a PAN-GO-PPy composite nanofiber yarn. According to the invention, the PAN-GO-PPy composite nanofiber yarn is prepared through an electrospinning technology; and compared with pure PAN nanofibers, the PAN-GO-PPy composite nanofiber yarn has a finer diameter and shows excellent mechanical properties and electrical conductivity. The conductive nanofiber composite yarn has a broad application prospect in the fields of aerospace, construction, electronics and textiles.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a method for preparing a composite nanofiber yarn doped with graphene oxide. Background technique [0002] Conductive polymers (CPs) refer to polymers whose electrical conductivity can be in the range of semiconductors and conductors through doping and other means, also known as conductive polymers. Conductive polymers have the advantages of high electrical conductivity, stable mechanical properties, low cost and high efficiency, and have broad application prospects in the fields of sensors, electronic devices, and electromagnetic protection. Common conductive polymers include polyacetylene, polythiophene, polypyrrole, polyaniline, and polydiacetylene. [0003] Polypyrrole (PPy) has great application prospects in the fields of electronics, biology and medicine, but its structure is rigid due to its poor processability. It is difficult to perform electrospinning with pure polyp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/44D01D5/00D01F1/09D01F6/54D06M15/37
CPCD02G3/441D01D5/003D01D5/0061D01F1/09D01F6/54D06M15/37
Inventor 穆凯鹏
Owner 穆凯鹏