Polystyrene is often used to make foam products. Polystyrene copolymer rubber, and other types of polymer materials to generate a variety of products with different mechanical properties. Everyday examples of applications have a variety of plastic cutlery, transparent CD box and so on. Expanded polystyrene foam (styrofoam) in construction materials used, since 2003, is widely used in the hollow floor slab insulation material.
High impact polystyrene (HIPS)
Impact-resistant polystyrene is by adding the poly butyl rubber in polystyrene granular approach produced a shock resistant polystyrene products. The polystyrene products will add a micron of rubber particles and by way of graft polystyrene and rubber particles are connected together. When subjected to shock, crack-tip stress are relatively soft rubber particles released. Crack has been hampered, improved impact resistance.