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Wet spinning method for multi-color conductive polymer-based composite conductive fiber

A conductive polymer and composite conductive technology, applied in the direction of conjugated synthetic polymer artificial filament, wet spinning method, fiber chemical characteristics, etc., can solve the problems of low fiber conductivity and mechanical properties, monotonous color, etc., and achieve a complete color spectrum , Overcome the effect of non-abrasion resistance and obvious electrochromic performance

Inactive Publication Date: 2012-09-19
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Composite conductive fibers have good fiber-forming properties and long-lasting conductivity, which have outstanding advantages, but the conductivity and mechanical properties of the fibers obtained after compounding are usually low, and the color is monotonous, mostly gray or black, which greatly limits its application. Further in-depth research is still needed to make breakthroughs

Method used

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  • Wet spinning method for multi-color conductive polymer-based composite conductive fiber
  • Wet spinning method for multi-color conductive polymer-based composite conductive fiber
  • Wet spinning method for multi-color conductive polymer-based composite conductive fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, prepare a kind of PEDOT / PSS-PVA composite conductive fiber:

[0029] At -30°C, 0.5kg of EDOT monomer, 6.4kg of ammonium persulfate (oxidant), 9.6kg of polystyrene sulfonate (main dopant) and 0.25kg of fatty acid polyoxyethylene ester (emulsifier) ​​were sequentially Add it into 10kg of distilled water, react for 24 hours, stop stirring, and filter to obtain a dark blue PEDOT / PSS dispersion emulsion;

[0030] Take 10kg of the obtained PEDOT / PSS dispersion emulsion and mix it with 2.5kg of PVA, let it stand for 3 hours, then heat the mixture at 98°C to dissolve the PVA, stand at 98°C under normal pressure for defoaming, and obtain the spinning stock solution;

[0031]The sodium sulfate solution at 45°C close to the saturation concentration is used as the coagulation bath, the content of sodium sulfate in the bath is 410 g / l, and the 370 g / l sodium sulfate aqueous solution at 85°C is used as the wet heat stretching bath. The spinning dope is sent into the sp...

Embodiment 2

[0033] Example 2, preparing a PEDOT / PSS-PVA composite conductive fiber with fluorescent rose red as a secondary dopant:

[0034] At 10°C, 0.5kg of EDOT monomer, 8.6kg of ferric sulfate (oxidant), 19.5kg of sodium polystyrene sulfonate (main dopant), 1kg of acid red G (secondary dopant) and 0.05kg of fatty acid Add polyoxyethylene ester (emulsifier) ​​to 20kg of distilled water successively, after reacting for 24 hours, stop stirring, and filter to obtain a dispersed emulsion in which dark purple fluorescent rose red is a secondary dopant;

[0035] Take 10kg of the obtained solution and mix it with 100kg of PVA, let it stand for 4 hours, then heat the mixture at 98°C to dissolve the PVA to obtain a viscous liquid that is evenly mixed, and stand at 98°C under normal pressure for defoaming to obtain the spinning stock solution;

[0036] The sodium sulfate aqueous solution at 45°C is used as the coagulation bath, and the sodium sulfate content in the bath is 410 g / l, and the 370 g...

Embodiment 3

[0038] Example 3, preparing a PEDOT / PSS-PVA composite conductive fiber with fluorescent yellow 184 as a secondary dopant:

[0039] At 0°C, 0.5kg of EDOT monomer, 3.2kg of sodium persulfate and 5.6kg of ferric sulfate (oxidant), 4.8kg of polystyrene sulfonic acid (main dopant) and 2.5kg of fluorescent yellow 184 (secondary dopant) agent) and 1kg polyoxyethylene laurate (emulsifier) ​​were added to 50kg distilled water successively, after reacting for 24h, stop stirring, filter, promptly obtain the dark green dispersed emulsion that Fluorescent Yellow 184 is secondary dopant;

[0040] Take 10kg of the obtained solution and mix it with 50kg of PVA, let it stand for 6 hours, then heat the mixture at 98°C to dissolve the PVA, and obtain a viscous liquid that is evenly mixed, and stand at 98°C under normal pressure for defoaming to obtain the spinning stock solution;

[0041] The sodium sulfate aqueous solution at 45°C is used as the coagulation bath, and the sodium sulfate content ...

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Abstract

The invention relates to a wet spinning method for multi-color conductive polymer-based composite conductive fiber. The wet spinning method for the multi-color conductive polymer-based composite conductive fiber comprises the following steps: by taking a water-soluble sulfonated polymer as a main dopant, acidic dye or acidic fluorescent dye as a secondary dopant and a polyoxyethylene-containing ester or ether material as an emulsifier, preparing a conductive polymer emulsion through chemical oxidative polymerization reaction with a conductive polymer monomer, blending the conductive polymer emulsion with polyvinyl alcohol, standing and defoaming to obtain a raw spinning solution, and performing wet spinning on the raw spinning solution. The prepared multi-color conductive polymer-based composite conductive fiber has the characteristics of high conductivity, color diversity and good mechanical properties and the like and has a certain electrochromic property; and the wet spinning method for the multi-color conductive polymer-based composite conductive fiber is simple in operating process and easy to realize industrial production, can be used for producing conductive and antistatic fiber and fabric with high added value and the like, and has a wide application prospect.

Description

technical field [0001] The invention belongs to a preparation method of functional fibers, in particular to a wet spinning method of multi-color conductive polymer-based composite conductive fibers. Background technique [0002] Since the 1950s, people have begun to develop organic conductive fibers for antistatic needs. Although it has been a long time, a relatively successful preparation process has yet to be formed. At present, only a few large companies in developed countries can produce it in batches, and it is still in its infancy in China. However, in the face of the increasing domestic demand, it is urgent for my country to independently research and develop high-tech conductive fiber materials, strengthen application research and market development, and realize the localization and scale of my country's conductive fiber production as soon as possible. [0003] At present, the conductive fibers put into use in the market mainly include metal fibers, carbon fibers, c...

Claims

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Application Information

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IPC IPC(8): D01F8/10D01F8/16D01F1/10D01D1/02D01D5/06D01D5/14D01D5/16D01D10/02C08G61/12C08G73/02C08G73/06
Inventor 李昕李小宁赵国樑刘志敏许英涛张鹏飞
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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