A kind of preparation method of flexible carboxylated nitrile rubber composite conductive film

Abstract

The invention relates to the technical field of preparation of functional materials, in particular to a method for preparing a flexible carboxylated nitrile rubber composite conductive film. First, mix the carboxylated nitrile rubber emulsion and the polyethylenimine crosslinking agent solution. After coating the film, immerse it in a solution containing copper sulfate for curing. After molding, add an aqueous solution of sodium thiosulfate to the copper sulfate solution, and use a chemical bath to raise the temperature. Copper sulfide was generated by the reaction method, and finally a carboxylated nitrile rubber composite conductive film was obtained. The copper sulfate prepared by this method not only grows on the surface of the nitrile rubber, but also grows and polymerizes inside, so that the formed copper sulfate can not only cover the surface of the nitrile rubber matrix film, but also penetrate into the inside of the film, truly completing the copper sulfide process. The effective adsorption makes the composite material have excellent electrical conductivity.

Description

Technical field

[0001] The present invention relates to the technical field of functional material preparation, particularly a method for preparing a flexible carboxylicitrile rubber composite conductive film. Background technique

[0002] The flexible conductive composites have excellent stretchable, conductivity, and strain sensitivity, thereby having a wide range of application prospects in sensors, foldable electronic screens, artificial skin and organs. Flexible electron is an emerging electronic technology that combines organic or inorganic material electronic devices with flexible substrates. Because of its good flexibility, ductility, and high-efficiency and low-cost preparation process, it has a wide range in information, energy, medical and national defense. Application prospects. In recent years, flexible electronic technology has shown rapid development momentum. Many well-known universities have established flexible electronic technology research institutions, and a ...