A kind of preparation method of high-performance polyvinyl alcohol/graphene composite film

Abstract

The invention belongs to the technical field of polymer composite material preparation, in particular to a preparation method for polyvinyl alcohol / graphene composite thin film. A new technology method is adopted to prepare the polyvinyl alcohol / graphene composite thin film, in-situ polymerization is conducted to prepare a polyvinyl alcohol / oxidized graphene solution, then a small amount of dopamine is added and reacts with the solution at the certain temperature and under an alkaline condition, after drying, the film is formed, and the polyvinyl alcohol / graphene composite thin film is prepared. Compared with a solution blending method, the composite thin film prepared by adopting the method has excellent mechanical and heat-resisting properties.

Description

technical field

[0001] The invention belongs to the technical field of polymer composite material preparation, and in particular relates to a preparation method for preparing polyvinyl alcohol / graphene film. Background technique

[0002] Polyvinyl alcohol is a typical crystalline water-soluble polymer. It has excellent water solubility, high strength and high modulus, solvent resistance, gas barrier property and biodegradability, etc. In addition to being used as vinylon fiber, it is also widely used as film, coating, adhesive, emulsifier, dispersant and other products, and its application range covers textile, medicine, wood, food, construction, printing, steel, polymer chemical industry and other industries. . Polyvinyl alcohol is a kind of flexible polymer, and its own mechanical properties and heat resistance properties often cannot meet higher requirements for use. Therefore, improving the mechanical properties and heat resistance of polyvinyl alcohol by compounding ...