Preparation method of polyaniline@polypyrrole conductive composite material

Abstract

The invention discloses a preparation method of a polyaniline@polypyrrole conductive composite material, which comprises the following steps of: firstly synthesizing PAn by a chemical oxidation method, and performing leaching, cleaning and drying to obtain deep green powder of PAn; then mixing a certain amount of polyaniline with a certain amount of water by an in-situ polymerization method, adding doping agent sulfamic acid and pyrrole monomer respectively, uniformly stirring the mixed liquid, and adding an oxidant ferric trichloride; then filtering the reaction liquid, and washing until the filtrate is neutral; and finally drying the filter cake and grinding to obtain black polyaniline@polypyrrole conductive powder.

Description

technical field [0001] The invention relates to a preparation method of a conductive composite material. Background technique [0002] Conductive polymers are a new research field developed in the 1970s. Because of their unique properties, they are widely used in electrochemistry, electrode materials, optics, biotechnology, and conductive materials. Among many conductive polymers, polypyrrole exhibits good conductivity, environmental stability, photoelectricity, pyroelectricity, adjustable conductivity, easy preparation and doping due to its typical rigid conjugated large π bond structure. , can be conveniently deposited on various substrates, can be copolymerized and compounded with other functional materials, can be used at room temperature or low temperature, etc., and is widely used in sensors, electronic devices, biomedicine and other fields. Polypyrrole has the advantages of good electrical conductivity, good chemical stability, light stability and easy preparation. ...

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Problems solved by technology

(1) Electrochemical methods are used to prepare polymers. Due to the harsh experimental conditions, they are only suitable for experimental research but not for industrial production, and this method will further increase product costs;

(2) Since a large amount of organic solvents are used in this patent, a large amount of organic waste liquid will be produced after the reaction, which will cause serious environmental pollution

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