HIPS Plastic Sheet Roll For Thermoforming Machine

Polystyrene (Polystyrene, abbreviated PS) refers to a polymer synthesized from styrene monomer through radical addition polymerization reaction, the chemical formula is (C8H8)n. It is a colorless and transparent thermoplastic with a glass transition temperature higher than 100°C, so it is often used to make various disposable containers that need to withstand the temperature of boiling water, and disposable foam lunch boxes.

Polystyrene (PS) includes ordinary polystyrene, expanded polystyrene (EPS), high impact polystyrene (HIPS) and syndiotactic polystyrene (SPS). Ordinary polystyrene resin is non-toxic, odorless, colorless transparent particles, glass-like brittle material, its products have extremely high transparency, light transmittance can reach more than 90%, good electrical insulation performance, easy to color, and process Good fluidity, good rigidity and good chemical resistance. The disadvantages of ordinary polystyrene are brittleness, low impact strength, stress cracking, poor heat resistance, and boiling water resistance.
Impact resistant polystyrene (HIPS) is an impact-resistant polystyrene product produced by adding polybutyl rubber particles to polystyrene. This polystyrene product will add micron-sized rubber particles and connect the polystyrene and rubber particles together by grafting. When subjected to an impact, the tip stress of the crack propagation will be released by the relatively soft rubber particles. Therefore, the propagation of cracks is hindered and the impact resistance is improved.