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Preparation method of polyaniline nanofiber/cellulose diacetate composite conductive material

A cellulose diacetate and nanofiber technology is applied in the field of preparation of polyaniline nanofiber/cellulose diacetate composite conductive materials, and achieves the effects of inhibiting precipitation and volatilization, good processing performance and low cost

Inactive Publication Date: 2016-04-27
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 preparation method of a polyaniline nanofiber / cellulose diacetate composite conductive material, which comprises the following steps: (1) adding a dopant dodecylbenzenesulfonic acid into the polyaniline nanofiber, and then adding Add a plasticizer to the heterogeneous polyaniline nanofibers and stir them evenly to obtain a suspension, put the suspension into a ball mill for ball milling, and obtain a plasticizer slurry containing polyaniline nanofibers; (2) mix the cellulose diacetate powder with hot The stabilizer calcium stearate is placed in a high-speed mixer, stirred evenly, and the plasticizer slurry obtained in step (1) is added to make the cellulose diacetate powder fully absorb the plasticizer to obtain a premix; (3) Melting and granulating the premix to obtain polyaniline nanofiber / cellulose diacetate composite pellets; (4) putting the pellets obtained in step (3) into a mold. The invention has simple process, low cost and easy realization of industrialized 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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Patent Type & Authority Patents(China)
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