Graphene oxide conductive adhesive and preparation and using method of graphene oxide conductive adhesive

Abstract

The invention discloses a graphene oxide conductive adhesive and a preparation and using method of the graphene oxide conductive adhesive and relates to a conductive adhesive and a preparation and using method of the conductive adhesive. The invention aims to solve the technical problems that the conventional adhesive and conductive adhesive are complex in preparation process and the conductive adhesive is low in conductivity and low in tolerance to acid or alkaline and oxidizing conditions. The adhesive is viscous dispersion liquid formed by dispersing graphene oxide in water or / and an organic solvent. The preparation method comprises the following steps: adding the graphene oxide into the water or / and the organic solvent, and obtaining graphene oxide slurry; ultrasonically stripping and dispersing under ultrasonic conditions, and obtaining dispersion of the graphene oxide; evaporating and concentrating, ultrasonically stripping and dispersing, and obtaining the graphene oxide conductive adhesive. The using method comprises the following steps: uniformly coating the graphene oxide conductive adhesive to a connecting face of two structure bodies needed to be connected, and obtaining a pre-connecting piece; and reducing after drying, and finishing conductive connection. The graphene oxide conductive adhesive can be used for electrode adhesion.

Description

technical field [0001] The present invention relates to conductive adhesives and methods of making and using them. Background technique [0002] Conductive adhesive is a kind of adhesive with conductive properties after curing. Traditional conductive adhesives usually include matrix resin, conductive fillers and additives. Among them, the resin plays a bonding role, and the filler plays a conductive role. The matrix resin is mainly epoxy resin, phenolic resin, polyurethane, etc.; the conductive filler can be silver, copper, iron and other metal powders and silver-plated metal powders. [0003] In recent years, the excellent physical and chemical properties of graphene have been widely recognized, but there are few related works using it as a binder. The current main research idea on graphene binders is to dope graphene as a component into commonly used binders, thereby improving the thermal and electrical conductivity of the binder, but this method often requires a large a...

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the technical problems of the cumbersome preparation process of the existing adhesive and conductive adhesive, the low electrical conductivity of the conductive adhesive, and the poor tolerance to acid, alkali and oxidation conditions, and provides a graphene oxide conductive adhesive and methods of preparation and use thereof

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