Preparation method of water-based polymer-doped natural conductive fibers

Abstract

The invention discloses a preparation method of water-based polymer-doped natural conductive fibers. The preparation method comprises the following steps: preparing a series of water-based cationic random copolymer surfactants by using a free radical solution copolymerization method by taking a hard vinyl monomer and a soft vinyl monomer in a certain ratio as oleophilic monomers and taking a cationic vinyl monomer and an acrylamide monomer as hydrophilic monomers; next, successfully preparing the polypyrrole / natural fiber composite natural conductive fibers by adopting an in-situ adsorption chemical-oxidization polymerization method by taking the prepared water-based copolymers as doping agents and taking ferric trichloride as an oxidizing agent. The water-based polymer-doped conductive natural fibers can be used for manufacturing a series of conductive paper by virtue of a traditional papermaking process, and has attractive advantages and application prospects in a plurality of fields such as antistatic materials, electromagnetic shielding, energy storage equipment, and packaging of sensors and electronic equipment. The water-based polymer-doped natural conductive fibers also can be used for replacing an electrostatic electromagnetic shielding plastic packaging material widely used in domestic and foreign markets at present, and therefore, the environment stress caused by plastics is relieved.

Description

technical field [0001] The invention relates to a method for preparing conductive fibers, in particular to a method for preparing conductive natural fibers under the action of water-based polymer doping. Background technique [0002] The preparation of intrinsically conductive polymer (ICP) / fiber composite conductive materials using fibers as templates has attracted close attention due to their excellent stability and processability, but mainly focuses on inorganic and inorganic materials such as carbon fibers, graphite fibers, polyurethane and polyamide fibers. Research on polymer fibers. Compared with inorganic fibers and polymer fibers, natural cellulose fibers have simpler and more extensive sources, coupled with its multiple functions such as sustainable development, environmental friendliness and biodegradability, it has strong market competitiveness; at the same time, it can Reduce dependence on depletable petroleum resources. And because of its porous and surface r...

AI Technical Summary

Problems solved by technology

The first two methods are expensive, and the yield of the prepared conductive polymer is severely limited by the area of ​​the electrode, and the oxidant is difficult to recover, so there are great application limitations; the process of in-situ adsorption polymerization method is relatively simple

Judging from the current research, researchers mainly focus on the preparation of conductive natural fibers using small and medium molecular dopants, and the research on the preparation of conductive natural fibers using macromolecular dopants has not been reported, especially water-based cationic polymers.