General-purpose polystyrene (GPPS) has wide application fields but little room for future industry development.

polystyrene (ps for short) is a thermoplastic resin polymerized with styrene as the main raw material. polystyrene is mainly divided into general-purpose polystyrene (gpps), impact-resistant polystyrene (hips) and expanded polystyrene (eps). general-purpose polystyrene is commonly known as transparent benzene and has a colorless, odorless, tasteless and shiny, transparent bead-like or granular solid. gpps has the…