Preparation of new styrenic alloy: PS/LDPE/SEBS

Polystyrene is a glassy amorphous polymer with good tensile strength, but has drawbacks such as brittleness, low toughness and impact strength. To overcome these deficiencies, copolymers and terpolymers such as HIPS, ABS, etc have been produced via reactor polymerization. In this work, a new styrenic alloy with LDPE compatibilized by SEBS has been compounded in an internal mixer very economically with superior properties. Impact strength, toughness, elongation at break, temperature resistance, and elasticity have been markedly enhanced