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Polyaniline/polyacrylonitrile elastic composite conductive fiber and preparation method thereof

A polyacrylonitrile, composite conductive technology, applied in conductive/antistatic filament manufacturing, fiber processing, spinning solution preparation, etc., can solve problems such as poor applicability and inability to meet industrial production

Inactive Publication Date: 2014-02-05
SUZHOU LONGJIE SPECIAL FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technology provided in this document only studies doped polyaniline, and does not solve the shortcomings of polyaniline fibers such as poor strength and high brittleness, and its practical applicability is poor, which cannot meet the needs of industrial production

Method used

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  • Polyaniline/polyacrylonitrile elastic composite conductive fiber and preparation method thereof
  • Polyaniline/polyacrylonitrile elastic composite conductive fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 20 grams of polyaniline dodecylbenzenesulfonate and add it to 180 grams of chloroform, and stir at 40°C for 6 hours to obtain solution A;

[0031] Then, 180 g of polyacrylonitrile was added into 600 g of dimethyl sulfoxide, and stirred at 60° C. for 10 hours to obtain solution B. Mix solution A and solution B, stir at 50° C. for 6 hours to make them evenly mixed, and obtain a blended spinning solution.

[0032] The wet spinning technology route is adopted, and conventional wet forming equipment is used. After the above spinning slurry is filtered and metered, it is extruded into the coagulation bath through the spinneret hole. The coagulation bath is an aqueous solution of dimethyl sulfoxide, and the temperature of the coagulation bath is At 20°C, the concentration of dimethyl sulfoxide is 50%, and a certain amount of dodecylbenzenesulfonic acid is added to make the pH value of the coagulation bath 3. After the high polymer is solidified, it passes through guide ...

Embodiment 2

[0034] Example 1 was repeated with the following differences: 15 grams of polyaniline camphorsulfonate was weighed and dissolved with 135 grams of xylene; 135 grams of polyacrylonitrile was dissolved with 500 grams of dimethyl sulfoxide. The doping agent of the fiber is camphorsulfonic acid, the blending solvent is xylene / dimethyl sulfoxide, and the coagulation bath is 50% dimethyl sulfoxide aqueous solution. The electrical conductivity of the fiber is 0.68S / cm, and the strength is 1.76CN / dtex.

Embodiment 3

[0036] Repeat Example 1, with the following differences: 10 grams of dodecylbenzenesulfonate of polyaniline are dissolved with 90 grams of chloroform; 190 grams of polyacrylonitrile are dissolved with 680 grams of dimethylsulfoxide . The dopant of the fiber is dodecylbenzenesulfonic acid, the blending solvent is chloroform / dimethyl sulfoxide, and the coagulation bath is 50% aqueous solution of dimethyl sulfoxide. The electrical conductivity of the fiber is 7.3×10-3S / cm, and the strength is 2.90CN / dtex.

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Abstract

The invention relates to a polyaniline / polyacrylonitrile elastic composite conductive fiber and a preparation method thereof. The polyaniline / polyacrylonitrile elastic composite conductive fiber comprises a skin layer and a core layer, wherein the skin layer consists of organicsulfonate of polyaniline and polyacrylonitrile; in fiber weight, the organicsulfonate of the polyaniline is 1-40 percent, and the polyacrylonitrile is 60-99 percent; the core layer contains elastic polyurethane fibers; the weight ratio of the skin layer to the core layer is (1-40):(60-99).

Description

technical field [0001] The invention relates to a conductive fiber, in particular to a polyaniline composite conductive fiber and a preparation method thereof. Background technique [0002] Conductive polymer is a very active research field at present, and has developed into an interdisciplinary science of polymer, electrochemistry and solid state physics. Compared with other conductive polymers, polyaniline has the advantages of simple preparation, good stability in air and water, strong charge storage capacity, and high conductivity. One of the polymers. [0003] People have conducted systematic research on the synthesis, conduction mechanism, and molecular structure of polyaniline. In recent years, a relatively consistent understanding has been obtained, and the focus of research is turning to application development. The preparation of polyaniline conductive fibers is one of the important application fields. Conductive fibers have a wide range of uses. In terms of clo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/08D01F8/16D01F1/09D01D1/02D01D5/06D01D5/34
Inventor 徐醒我关乐赵满才
Owner SUZHOU LONGJIE SPECIAL FIBER
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