Polycarbonate resin composition and molded article

摘要

To provide a polycarbonate resin composition excellent in flame resistance, impact resistance and external appearance and a molded article formed from the polycarbonate resin composition. The composition comprises 0.001 to 2 parts by mass of a metal organic sulfonate (B), 0.001 to 1 parts by mass of a fluoropolymer (C), 0.5 to 5 parts by mass of polyalkylsilsesquioxane particles having an average particle diameter of 0.6 to 5 μm (D), and 0.5 to 8 parts by mass of a graft copolymer (E) having a butadiene content ratio of 50% to 90%, relative to 100 parts by mass of a polycarbonate resin (A).

主权项

1. A polycarbonate resin composition comprising 100 parts by mass of a polycarbonate resin (A), 0.001 to 2 parts by mass of a metal organic sulfonate (B), 0.001 to 1 parts by mass of a fluoropolymer (C), 0.5 to 4 parts by mass of polyalkylsilsesquioxane particles (D) having a volume-average particle diameter of 0.6 to 5 μm, 0.5 to 4.5 parts by mass of a graft copolymer (E) having a butadiene content ratio of 50% to 90%, and 0.0001 to 3 parts by mass of a carbon black (F), relative to 100 parts by mass of the polycarbonate resin;
wherein when the polycarbonate resin composition is injection-molded under a condition of a cylinder temperature of 290° C. and a mold temperature of 80° C. using an injection molding machine and formed to a test piece for ASTM tensile impact test having a thickness of 3.2 mm in accordance with ASTM D1822 Type S, and the test piece for ASTM tensile impact test was treated at 100° C. for 1000 hours, the tensile impact strength for the treated piece under the ASTM tensile impact test in accordance with ASTM D1822 is not less than 280 kJ/m2.