| 摘要 |
PURPOSE: A styrene type thermoplastic resin composition which is suitable for gas assist injection at low temperature, low speed, and low pressure, and advantageously applied for an article having a complicated structure and thin, and TV housing is provided as its well balanced characteristics between heat resistance, impact resistance and impact resistance at low temperature, and fluidity. CONSTITUTION: A styrene type thermoplastic resin composition is comprised of, based on a whole resin of a 100 parts by weight, (A) 90-93 parts by weight of monovinyl aromatic compound, (B) 7-19 parts by weight of polybutadiene rubber having different cis- content, (C) 2.0-4.0 parts by weight of flowable paraffin mineral oil having viscosity of 54-76 centi-stoke at room temperature, (D) 0.01-0.5 hundred parts by weight of polydimethylsiloxane, (E) 0.01-0.5 hundred parts by weight and, (F) 0.03-0.1 hundred parts by weight of antioxidant and initiator of tertiary butyl peroxy acetate. The composition has significantly improved heat resistance, impact strength at low temperature such as -20°C, and fluidity. |
