1. PS(Polystyrene) is one of the oldest industrialized thermoplastic polymers and is a very versatile product with a wide range of applications.This bright, pure amorphous plastic has the advantages of easy to process, rigid, dimensionally stable and transparent, but its low impact strength limits its use.
2. HIPS(High impact polystyrene) is to add a small amount of polybutadiene onto the polystyrene matrix.With “”island structure””, the matrix is plastic, the dispersed phase is rubber.It has many characteristics.
3.When under impact, the stress of crack growth is released by the relatively soft rubber particles, so the crack growth is hindered and the impact resistance is improved.
4.HIPS is one of the cheapest engineering plastics. Compared with ABS,PC/ABS,PC, the material has poor luster and comprehensive performance.