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Conductive nanofiber and preparation method and application thereof

A technology of conductive nanofibers, applied in the manufacture of conductive/antistatic filaments, chemical characteristics of fibers, textiles and papermaking, etc., can solve problems such as difficult direct application of flexible substrates, decreased conductivity, and easy oxidation of copper nanofibers , to achieve the effect of good industrialization prospect, low cost and excellent electrical conductivity

Inactive Publication Date: 2016-06-22
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of copper nanowires requires high temperature treatment, which is difficult to be directly applied to flexible substrates, and copper nanofibers are easily oxidized, which greatly reduces the conductivity

Method used

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  • Conductive nanofiber and preparation method and application thereof
  • Conductive nanofiber and preparation method and application thereof
  • Conductive nanofiber and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] First add 4mL of water into a 50mL beaker, then add 2.25g of silver nitrate, and completely dissolve the silver nitrate under magnetic stirring. Place the silver nitrate solution in an ice-water bath, add 3.75 mL of isopropylamine under magnetic stirring, stir for 45 minutes, add 0.3 mL of ethylene glycol, continue stirring for 1 hour, and then filter with filter paper.

[0048] Take 3.3mL of the above solution and add water / ethanol (1:1) mixed solvent to configure 6mL solution. After stirring evenly, add 0.24g polyethylene oxide, 0.48g polyvinylpyrrolidone and 0.08g polyethylene glycol respectively, and stir at room temperature for 18h , to obtain a spinning solution.

[0049] Inject the spinning liquid into the syringe, use a 1.0mm spinning nozzle, wrap the polyimide film on the drum receiver, connect the positive and negative electrodes of the high-voltage DC power supply to the spinning nozzle and the drum, and the spinneret The distance from the drum receiver is 1...

Embodiment 2

[0052] First add 3mL of water into a 50mL beaker, then add 2g of silver nitrate, and completely dissolve the silver nitrate under magnetic stirring. Place the silver nitrate solution in an ice-water bath, add 3.5 mL of isopropylamine under magnetic stirring, stir for 30 minutes, add 0.35 mL of ethylene glycol and 0.1 mL of 1,2 propylene glycol, continue stirring for 30 minutes, and then filter with filter paper.

[0053] Take 1.5mL of the above solution and add water / ethanol / DMF (3:5:1) mixed solvent to configure 6mL solution. After stirring evenly, add 0.12mL nano-silver / ethanol dispersion containing 60% silver, 0.18g polyethylene oxide, 0.5 g of polyvinylpyrrolidone and 0.01 g of polyoxyethylene polyoxypropanolamine ether were stirred at room temperature for 10 h to obtain a spinning solution.

[0054] Inject the spinning liquid into the syringe, use a 1.0mm spinning nozzle, wrap the polyimide film on the drum receiver, connect the positive and negative electrodes of the hig...

Embodiment 3

[0057] First add 3mL of water into a 50mL beaker, then add 2g of silver nitrate, and completely dissolve the silver nitrate under magnetic stirring. Place the silver nitrate solution in an ice-water bath, add 3.5 mL of isopropylamine under magnetic stirring, stir for 15 minutes, add 0.3 mL of 1,3 propylene glycol and 0.15 mL of n-butanol, continue stirring for 45 minutes, and then filter with filter paper.

[0058] Take 3mL of the above solution and add water / ethanol / butyl acetate (10:10:1) mixed solvent to configure 6mL solution. After stirring evenly, add 0.18g polyethylene oxide, 0.21g polyvinylpyrrolidone, 0.03g polydimethylsiloxane Oxane and 0.05 g of fumed silica were stirred at room temperature for 12 hours to obtain a spinning solution.

[0059] Inject the spinning liquid into the syringe, use a 1.0mm spinning nozzle, wrap the polyimide film on the drum receiver, connect the positive and negative electrodes of the high-voltage DC power supply to the spinning nozzle and...

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Abstract

The invention relates to a conductive nanofiber and a preparation method and application thereof. The conductive nanofiber is prepared from metal, a resin matrix and the like, wherein the metal is one or two of silver and copper or alloy of silver and copper. The conductive nanofiber is prepared through the electrospinning technique. The specific preparation method includes the steps that firstly, raw materials containing silver or / and copper and the resin matrix are prepared into a spinning solution, under the effect of a high-pressure electric field, a composite fiber is spun, and then the conductive nanofiber is prepared through heat treatment at low temperature. According to the provided conductive nanofiber and the preparation method thereof, the obtained conductive nanofiber has excellent conductivity and high length-diameter ratio, and can be used for preparing a conductive material of a transparent conductive electrode, and the application field is very wide.

Description

technical field [0001] The invention relates to a conductive nanofiber, a preparation method and application thereof, and belongs to the technical fields of electronic materials, functional materials and nanomaterials. Background technique [0002] Conductive nanofibers have broad application prospects in antistatic, new energy, biology, sensors, solar cells, flexible electronics, and wearable electronics. [0003] There are many methods to prepare one-dimensional nanostructures, such as template method, self-assembly, interfacial polymerization, etc. The electrospinning technique is the most used and the most widely used of these methods. Electrospinning is a processing method that uses a high-voltage electric field to prepare nanofibers from a solution or melt. The diameter of the fibers prepared by electrospinning is between several nanometers and several micrometers. Compared with other processing methods for synthesizing and fabricating 1D nanostructured materials, e...

Claims

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Application Information

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IPC IPC(8): D01F8/10D01F8/16D01F6/94D01F6/54D01F6/56D01F1/09
CPCD01F8/10D01F1/09D01F6/54D01F6/56D01F6/94D01F8/16
Inventor 邱业君张立文王凯强
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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