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Preparation method of polylactic acid/polyaniline composite conductive fiber

A composite conductive and polylactic acid technology, which is applied in fiber processing, conjugated synthetic polymer artificial filament, textiles and papermaking, can solve the problems of complex process and high cost, and achieve mature technology, low cost and long-lasting conductive effect Effect

Inactive Publication Date: 2013-08-14
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above methods can improve the adsorption of fibers to conductive polyaniline, the process is complicated and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put 200 grams of PVA1788, 90 grams of glycerol, and 10 grams of zinc stearate into a high-speed mixer, control the mixing temperature at 70 °C, and mix evenly; use the twin-screw extruder at 190 °C for melt blending and tape production. Granulate to obtain plasticized polyvinyl alcohol chips. Put the plasticized polyvinyl alcohol chips and 700 grams of polylactic acid chips into the melt spinning machine, and carry out spinning and drawing according to the conventional melt spinning method, the spinning temperature is 210 ° C, the spinning speed is 400 m / min, ℃ hot drawing, the drawing ratio is 4 times, that is, the polyvinyl alcohol / polylactic acid blend fiber is obtained. The polyvinyl alcohol / polylactic acid blended fibers were placed in water at 80° C. for 30 minutes to remove the polyvinyl alcohol in the blended fibers to obtain polylactic acid porous fibers. Add 20 grams of aniline monomers to 1000 grams of 1 mol / L hydrochloric acid aqueous solution, stir evenly,...

Embodiment 2

[0025] Put 100 grams of PVA0588, 20 grams of glycerol, and 5 grams of calcium stearate into a high-speed mixer, control the mixing temperature at 70 °C, and mix evenly; use it in a twin-screw extruder at 150 °C for melt blending and tape production. Granulate to obtain plasticized polyvinyl alcohol chips. Put the plasticized polyvinyl alcohol chips and 875 grams of polylactic acid chips into the melt spinning machine, spin and draw according to the conventional melt spinning method, the spinning temperature is 200 ° C, the spinning speed is 700 m / min, ℃ hot drawing, the drawing ratio is 5 times, that is, the polyvinyl alcohol / polylactic acid blend fiber is obtained. The polyvinyl alcohol / polylactic acid blended fibers were placed in water at 40° C. for 60 minutes to remove the polyvinyl alcohol in the blended fibers to obtain polylactic acid porous fibers. Add 15 grams of aniline monomer to 1000 grams of 1 mol / L sulfuric acid aqueous solution, stir evenly, immerse 40 grams of...

Embodiment 3

[0027] Put 260 grams of PVA2488, 40 grams of glycerol, 35 grams of polyethylene glycol, and 15 grams of calcium stearate into a high-speed mixer, control the mixing temperature at 70 ° C, and mix evenly; use it in a twin-screw extruder at 190 ℃ melt blending and tape granulation to obtain plasticized polyvinyl alcohol chips. Put the plasticized polyvinyl alcohol chips and 650 grams of polylactic acid chips into the melt spinning machine, and carry out spinning and drawing according to the conventional melt spinning method, the spinning temperature is 210 ° C, the spinning speed is 400 m / min, ℃ hot drawing, the drawing ratio is 3 times, that is, the polyvinyl alcohol / polylactic acid blend fiber is obtained. The polyvinyl alcohol / polylactic acid blend fiber was placed in water at 80° C. for 60 minutes, and the polyvinyl alcohol in the blend fiber was removed to obtain polylactic acid porous fiber. Add 25 grams of aniline monomers to 1000 grams of 1 mol / L hydrochloric acid aqueo...

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Abstract

The invention discloses a preparation method of polylactic acid / polyaniline composite conductive fiber. The preparation method comprises the following steps of: (1) putting polyvinyl alcohol, polyalcohol and a flowing accelerant into a high-speed mixer, mixing under the condition of 50-70 DEG C, and carrying out melt blending at 150-190 DEG C for belting and granulating to obtain plasticized polyvinyl alcohol slices; (2) putting the plasticized polyvinyl alcohol slices and polylactic acid slices into a melt spinning machine to carry out spinning to obtain polyvinyl alcohol / polylactic acid blend fiber; (3) putting the polyvinyl alcohol / polylactic acid blend fiber in water at 40-90 DEG C for 20-60 minutes to obtain the polylactic acid porous fiber; and (4) adding aniline monomers into an acidic water solution, uniformly stirring and then soaking the polylactic acid porous fiber, then adding an acidic water solution dissolved with an oxidant, and reacting for 0.5-3 hours to obtain the polylactic acid / polyaniline composite conductive fiber. According to the preparation method, the technological conditions are easy to implement, the cost is saved and the polylactic acid / polyaniline composite conductive fiber has excellent conductivity.

Description

technical field [0001] The invention belongs to the field of composite conductive fibers and their preparation, in particular to a polylactic acid / polyaniline composite conductive fiber and a preparation method thereof. Background technique [0002] In 1976, a research group led by MacDiarmid of the University of Pennsylvania discovered that the organic polymer polyacetylene has metal-like conductivity after being doped, and since then, there has been a wave of research and development of conductive polymers around the world. In subsequent studies, it was successively found that polyparaphenylene, polypyrrole, polyphenylene sulfide, polythiophene, polyparastyrene, polyaniline and other conjugated polymers have high electrical conductivity after being doped. 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 characteristics of easy availa...

Claims

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Application Information

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IPC IPC(8): D06M15/61D06M11/01D01F8/14D01F8/10C08G73/02
Inventor 潘玮孙亚丽陈燕曲良俊裴海燕
Owner ZHONGYUAN ENGINEERING COLLEGE
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