Polyurethane insulation material is the best insulation material in the world. Hard polyurethane has light weight, low thermal conductivity, good heat resistance, aging resistance, easy to bond with other substrates, combustion does not produce drops and other excellent performance, in Europe and the United States, widely used in building roofs, walls, ceilings, floors, doors and Windows as thermal insulation materials. In Europe and America and other developed countries, about 49% of building insulation materials are polyurethane, but in our country, the proportion is less than 10%.
Polyurethane insulation material, as a polymer material with excellent performance, has become the fifth largest plastic after polyethylene, polyvinyl chloride, polypropylene, polystyrene, and the global total output has exceeded 10 million tons/year. Polyurethane industry of our country has developed greatly in recent years, and it has been widely used in the fields of refrigerators, containers, leather, footwear and textile. This time in the field of building energy saving and other fields, will create a great development space for our polyurethane industry.