High impact polystyrene, also known as HIPS, is a thermoplastic material made from elastomer modified polystyrene. Made of rubber and continuous polystyrene phase two phase system, has developed into important polymer products in the world, the universal
product in impact performance and machining performance has a very wide range,such as used in
automobiles, instruments, electric products, furniture, household appliances, telecommuniations, electronics, medicine, packaging and entertainment market.