The invention provides a preparation method of a flexible
polyaniline conductive composite hydrogel material, and belongs to the technical field of functional
polymer materials. According to the method, a flexible conductive material with good
mechanical strength and electrochemical property is prepared by utilizing the properties and characteristics of polyatomic acid of
phytic acid, by taking the
phytic acid as an acid
doping agent and a gel crosslinking factor and taking
polyvinyl alcohol hydrogel as a skeleton. The method comprises the following steps: dissolving
polyvinyl alcohol into water to form a solution and matching the solution with phenylamine and
phytic acid at a proportion to form a solution A; dissolving initiating agent
ammonium persulfate into water to form a solution B; quickly mixing the solution A and the solution B at a low temperature, so that
in situ polymerization is performed on the phenylamine in a
polyvinyl alcohol aqueous solution, so as to form phytic acid-
doped polyaniline hydrogel; placing the phytic acid-
doped polyaniline hydrogel into a refrigerator for freezing, so as to form the flexible
polyaniline conductive composite hydrogel material by a cyclic
freeze thawing. The flexible
polyaniline conductive composite hydrogel material prepared by the method has good electrochemical property,
mechanical strength and flexibility; the preparation method is simple, and the cost is low, and the preparation method has wide application prospect in the fields of flexible
energy storage materials and
biomedicine.