Method for preparing polyaniline nanofiber/cellulose diacetate composite conductive material

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...