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Method for preparing polyaniline nanofiber/cellulose diacetate composite conductive material

A technology of cellulose diacetate and nanofibers, which is applied in the field of preparation of polyaniline nanofibers/cellulose diacetate composite conductive materials, to achieve high compatibility, improve agglomeration problems, and good processing performance

Inactive Publication Date: 2014-08-06
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding polyaniline as an additive to cellulose acetate matrix to prepare conductive composite materials by melt blending method, there is no relevant report in the literature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Put 80 grams of polyaniline nanofibers and 40 grams of dodecylbenzenesulfonic acid in 280 grams of triacetin and stir evenly to obtain a suspension with a solid content of 20%, and put the suspension into a ball mill at a speed of 200rpm Under the condition of ball milling for 1 hour, a plasticizer slurry containing polyaniline nanofibers was obtained. Put 590 grams of cellulose acetate powder and 10 grams of calcium stearate in a high-speed mixer, stir evenly and slowly add the plasticizer slurry when the temperature rises to 30°C, and continue to keep warm for 1 hour to fully absorb and plasticize the cellulose acetate powder A premix is ​​obtained after dosing. The premix was melted and granulated through a twin-screw extruder at a temperature of 180° C., and the rotational speed of the twin-screw extruder was 100 rpm to obtain polyaniline nanofiber / cellulose diacetate composite pellets.

[0019] Put the pellets into the mold, the length×width×thickness of the mold ...

Embodiment 2

[0021] 60 grams of polyaniline nanofibers and 40 grams of dodecylbenzenesulfonic acid are placed in 300 grams of triacetin and stirred evenly to obtain a suspension with a solid content of 15%, and the suspension is put into a ball mill at a speed of 200rpm Under the condition of ball milling for 1 hour, a plasticizer slurry containing polyaniline nanofibers was obtained. Put 580 grams of cellulose acetate powder and 20 grams of calcium stearate in a high-speed mixer, stir evenly and slowly add the plasticizer slurry when the temperature rises to 40°C, and continue to keep warm for 4 hours to fully absorb and plasticize the cellulose acetate powder A premix is ​​obtained after dosing. The premix was melted and granulated through a twin-screw extruder at a temperature of 170° C., and the rotational speed of the twin-screw extruder was 200 rpm to obtain polyaniline nanofiber / cellulose diacetate composite pellets.

[0022] Put the pellets into the mold, hot press in a flat vulca...

Embodiment 3

[0024] 150 grams of polyaniline nanofibers and 100 grams of dodecylbenzenesulfonic acid are placed in 250 grams of triethyl citrate and stirred evenly to obtain a suspension with a solid content of 30%, and the suspension is put into a ball mill at a speed of Ball milling at 300 rpm for 3 hours to obtain a plasticizer slurry containing polyaniline nanofibers. Put 490 grams of cellulose diacetate powder and 10 grams of calcium stearate in a high-speed mixer, stir evenly and slowly add the plasticizer slurry when the temperature rises to 50 ° C, and continue to keep warm for 6 hours to fully absorb the cellulose acetate powder. A premix is ​​obtained after the plasticizer. The premix was melted and granulated through a twin-screw extruder at a temperature of 160° C., and the rotational speed of the twin-screw extruder was 300 rpm to obtain polyaniline nanofiber / cellulose diacetate composite pellets.

[0025] Put the pellets into the mold, hot press in a flat vulcanized bed for ...

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Abstract

The invention discloses a method for preparing a polyaniline nanofiber / cellulose diacetate composite conductive material. The method comprises the following steps: (1) adding a dopant dodecylbenzene sulfonate into polyaniline nanofibers, then adding a plasticizer into the polyaniline nanofibers in a doped state, uniformly stirring the mixture to obtain a suspension, and placing the suspension in a ball mill to be subject to ball milling to obtain a plasticizer slurry containing the polyaniline nanofibers; (2) placing cellulose diacetate powder and a heat stabilizer calcium stearate in a high-speed mixer, stirring uniformly and adding the plasticizer slurry obtained in the step (1) to enable the cellulose diacetate powder to fully absorb the plasticizer so as to obtain a premix; (3) melting the premix melt for granulation to obtain a polyaniline nanofiber / cellulose diacetate composite particulate material; (4) placing the particulate material obtained in the step (3) into a mould. The method is simple in process, low in cost and easy to implement industrial production.

Description

technical field [0001] The invention belongs to the field of preparation of composite conductive materials, in particular to a preparation method of polyaniline nanofiber / cellulose diacetate composite conductive material. 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 (PANI) and other conjugated polymers have high conductivity. 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-to-obtain raw material...

Claims

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Application Information

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IPC IPC(8): C08L1/12C08L79/02C08K5/42C08K5/103C08K5/11
Inventor 潘玮黄沅辉陈燕曲良俊贾雪艳
Owner ZHONGYUAN ENGINEERING COLLEGE
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