MANUFACTURING METHOD OF POLYURETHANE FOAM/CLAY NANO COMPOSITES FOR THE THERMAL INSULATION AND THE POLYURETHANE FOAM/CLAY NANO COMPOSITES USING THE SAME

摘要

A method for preparing a polyurethane foam/clay nanocomposite insulating material, and a polyurethane foam/clay nanocomposite insulating material prepared by the method are provided to improve heat insulation and compressive strength. A method for preparing a polyurethane foam/clay nanocomposite insulating material comprises the steps of reacting a silane-based coupling agent and an organic clay to form a covalent bond between the silane-based coupling agent and the organic clay; mixing the obtained one with a diisocyanate compound to react them, thereby forming a covalent between the diisocyanate compound and the silane-based coupling agent and dispersing the organic clay in the diisocyanate compound; and mixing the obtained one with a polyol and a chlorine-based foaming agent and reacting it with stirring.