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Preparation method of polyacrylonitrile/polyaniline compound micro-nano conductive fiber

A micro-nano fiber, polyacrylonitrile technology, applied in the direction of fiber type, fiber treatment, fiber chemical characteristics, etc., can solve the problem of limited effective adsorption of conductive polyaniline, and achieve the effect of being environmentally friendly, lasting conductive effect, and low cost

Inactive Publication Date: 2013-08-21
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above methods all have the problem of limited effective adsorption of conductive polyaniline.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 30 grams of polyacrylonitrile with a molecular weight of 50,000 and 10 grams of polyethylene glycol with a molecular weight of 6000 are dissolved in 460 grams of dimethylformamide to prepare a spinning solution with a mass fraction of 8%. Polyacrylonitrile / polyethylene glycol micro-nanofibers were spun in an electrospinning device. The spinning voltage is 10KV, the flow rate of the spinning liquid is 0.5ml / h, and the collecting distance is 15cm. The polyacrylonitrile / polyethylene glycol micro-nano fibers are placed in water at 40° C. for 60 minutes to remove the polyethylene glycol in the fibers to obtain polyacrylonitrile porous micro-nano fibers. Add 4 grams of aniline monomer to 200 grams of 1mol / L hydrochloric acid aqueous solution, stir evenly and then immerse 6 grams of polyacrylonitrile porous micro-nano fibers, control the temperature at 0°C, dissolve 1mol / L of hydrochloric acid with 10 grams of ammonium persulfate 100 grams of L aqueous solution was slowly add...

Embodiment 2

[0018] 45 grams of polyacrylonitrile with a molecular weight of 50,000 and 15 grams of polyethylene glycol with a molecular weight of 6000 are dissolved in 440 grams of dimethylformamide to prepare a spinning solution with a mass fraction of 12%. Polyacrylonitrile / polyethylene glycol micro-nanofibers were spun in an electrospinning device. The spinning voltage is 10KV, the flow rate of the spinning liquid is 0.5ml / h, and the collecting distance is 15cm. The polyacrylonitrile / polyethylene glycol micro-nanofibers are placed in water at 50° C. for 50 minutes to remove the polyethylene glycol in the fibers to obtain polyacrylonitrile porous micro-nanofibers. Add 3 grams of aniline monomer to 200 grams of 1mol / L sulfuric acid aqueous solution, stir evenly, and then immerse 10 grams of polyacrylonitrile porous micro-nano fibers, control the temperature at 10°C, and dissolve 8 grams of ammonium persulfate in 1mol of sulfuric acid water Slowly add 100 grams of / L solution, and react ...

Embodiment 3

[0020] 40 grams of polyacrylonitrile with a molecular weight of 100,000 and 10 grams of polyethylene glycol with a molecular weight of 8,000 are dissolved in 450 grams of dimethylformamide to prepare a spinning solution with a mass fraction of 10%. Polyacrylonitrile / polyethylene glycol micro-nanofibers were spun in an electrospinning device. The spinning voltage is 15KV, the flow rate of the spinning liquid is 1ml / h, and the collection distance is 20cm. The polyacrylonitrile / polyethylene glycol micro-nano fiber is placed in 80° C. water for 20 minutes to remove the polyethylene glycol in the fiber to obtain polyacrylonitrile porous micro-nano fiber. Add 5 grams of aniline monomer to 200 grams of 0.5 mol / L hydrochloric acid aqueous solution, stir evenly and then immerse 10 grams of polyacrylonitrile micro-nano porous fiber, control the temperature at 30 °C, dissolve 0.5 grams of hydrochloric acid with 10 grams of ammonium persulfate 100 g of mol / L aqueous solution was slowly a...

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Abstract

The invention discloses a preparation method of a polyacrylonitrile / polyaniline compound micro-nano conductive fiber. The preparation method comprises the following steps of: (1) dissolving polyacrylonitrile and polyethylene glycol into dimethylformamide; standing, de-foaming, and spinning a polyacrylonitrile / polyethylene glycol micro-nano fiber in an electrostatic spinning device; (2) placing the polyacrylonitrile / polyethylene glycol micro-nano fiber into water of 40-90 DEG C for 10-60 minutes to obtain a polyacrylonitrile porous micro-nano fiber; and (3) adding an aniline monomer into hydrochloric acid; uniformly agitating and immersing the polyacrylonitrile porous micro-nano fiber in the solution; and adding hydrochloric acid dissolved with ammonium persulfate to react for 0.5-3 hours to obtain the polyacrylonitrile / polyaniline compound micro-nano conductive fiber. The polyethylene glycol used in the preparation method disclosed by the invention is a water-soluble polymer which has a wide application range, has no pollution to an environment, and is cheap and easy to obtain, environment-friendly and low in cost.

Description

technical field [0001] The invention belongs to the field of composite conductive fibers and the preparation thereof, in particular to a polyacrylonitrile / polyaniline composite micro-nano conductive fiber and a preparation method thereof. Background technique [0002] In 1976, a research team led by MacDiarmid of the University of Pennsylvania discovered that the organic polymer polyacetylene has metal-like conductivity after being doped. Since then, there has been an upsurge in research and development of conductive polymers all over the world. In subsequent studies, it was successively found that polyparaphenylene, polypyrrole, polyphenylene sulfide, polythiophene, polyparaphenylene, polyaniline and other conjugated polymers have high electrical conductivity after doping. The study of conductive polymers not only has great theoretical value, but also has great application value. [0003] Compared with other structural conductive polymers, polyaniline has the characteristi...

Claims

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Application Information

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IPC IPC(8): D06M15/61D01F6/18D01F8/08D01F8/16D01F11/06D01D1/02D01D5/00D06M101/28
Inventor 张慧勤潘玮孙亚丽陈燕曲良俊裴海燕
Owner ZHONGYUAN ENGINEERING COLLEGE
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