GPPS plastics are universal grade polystyrene (GPPS), polystyrene (PS) is made of styrene monomer (SM) polymerization, which can be synthesized by a variety of synthesis methods. At present, bulk polymerization and suspension polymerization are mainly used in industry. PS is a thermoplastic non-crystalline resin, which is mainly divided into general-purpose polystyrene (PPS, commonly known as benzene-permeable), impact-resistant polystyrene (hips, commonly known as benzene modified), and expanded polystyrene (EPS).
Because polystyrene is transparent and has excellent rigidity, electrical and printing properties, especially good hygiene and low price, it has a broad application prospect in food packaging. It has been widely used in various instrument shells, lampshade, optical parts, instrument parts, transparent window mirrors, transparent models, chemical acid storage tanks, acid transport tanks, telecommunications parts, high frequency capacitors, high frequency insulation gaskets, supports, inserts and frozen insulation materials, etc. , in the mechanical and electrical industry, instrumentation, communication equipment industry and so on. Also used in a variety of daily necessities, such as bottle caps, containers, decorations, buttons, combs, toothbrushes, soap boxes, cigarette boxes and toys.