introduction to methods to improve the heat resistance of polyurethane materials
polyurethane is a high-quality polyurethane mainly made of diisocyanate, chain extender and oligomer polyol as basic raw materials. molecular material with the combined properties of rubber and plastic. it has excellent mechanical properties, wear resistance, oil resistance, tear resistance, chemical corrosion resistance, radiation resistance, and good adhesion. but its use temperature generally it does not…

