Poly(butylene terephthalate)/Graphene Composites and Method for Preparing the Same

摘要

PURPOSE: A manufacturing method of a polyurethane composite film is provided to provide a moisture-permeable and waterproof polyurethane film by absorbing anions to particle size-controlled hydroxyapatite. CONSTITUTION: A manufacturing method of a polyurethane composite film comprises: a step of manufacturing polyurethane liquid; a step of manufacturing a nanohydroxyapatite dispersion; a step of manufacturing a polyurethane/apatite composite composition by mixing the hydroxyapatite dispersion into the polyurethane liquid; a step of preparing a polyurethane composition by putting a mixture of water and organic solvent into the composite composition; a step of preparing a polyurethane composite film by film casting the polyurethane composition; and a step of absorbing silver ions by impregnating the polyurethane composite film into the silver nitrate solution. [Reference numerals] (AA) Storage elasticity(GPa); (BB) Graphene(weight%)