HIPS plastic is called impact resistant polystyrene, which is a kind of impact resistant polystyrene product produced by adding polybutyl rubber particles into polystyrene.
Hips plastics connect polystyrene and rubber particles by adding micron rubber particles and branching. When HIPS plastic is impacted, the tip stress of crack growth will be released by relatively soft rubber particles, so the crack growth is blocked and the impact resistance is improved.
Hips plastics are usually transparent and colorless, and can be colored as required. Hips plastics are widely used in toys, daily necessities, radio case and TV case.
The advantages of hips: 1. It has excellent flow performance; 2. It has good impact resistance; 3. It is easy to handle and color.
Disadvantages of hips Plastics: 1. The rubber content in hips plastics is 15%, which interferes with its fluidity to a certain extent; 2. The cooling speed of hips plastics is very slow. In addition to sufficient pressure holding time and speed, the mold must also have excellent heat exchange function to reduce part shrinkage and shape change after mold exit.