Introduction Polyurethane, commonly a new composite material between plastic and rubber, is formed after chemical reaction of polymer polyalcohol and isocyanate through chain extension and cross linkage. It is divided into polyether and polyester according to its backbone chain.
Application PU is used for shock absorption backing plate, spacer and springof metallurgy, coal mine, petroleum, automobile, building material, sports, heavy machine and large press equipment as well as die of metal plate and tube .
Features and Benefits 1.Resilience (high or low) 2.Excellent abrasion resistance 3.Light weight relative to metals / Lighter than metals 4.Impact and shock resistance 5.Bonding to metals and plastics 6.Compression modulus (high to low) 7.Cut and tear resistance 8.Flex fatigue resistance 9.Friction (high or low) 10.Good electrical properties 11.Oil, solvent, water, ozone resistance 12.Age resistance 13.Mold, mildew, fungus resistance 14.Chemical resistance 15.Machinability