| 摘要 |
PURPOSE: A flame retardant styrene resin composition which has excellent impact resistance, thermostability, appearance characteristics, and fluidity, thereby being applicable to exterior material for articles used in TV, VCR, copy machine, or FAX is provided by using a mixture of polystyrene with different rubber particle sizes, flame retardants which is selected from melt or non-melt halogen compound or mixture thereof, antimony trioxide, impact modifier, and lubricant of olefin compounds. CONSTITUTION: The flame retardant composition comprises: (A) 100 pts.wt. of polystyrene reinforced with rubber comprised of (a1) 50-90 wt% of polystyrene resin reinforced with rubber having 0.2-0.8 micrometer of average rubber particle size, and (a2) 50-10 wt% of polystyrene resin reinforced with rubber having 2.0-3.0 micrometer of average rubber particle size; (B) 5-25 pts.wt. of halogen compound; (C) 1-10 pts.wt. of antimony trioxide; (D) 0.5-10 pts.wt. of antimony trioxide; (E) 1-10 pts.wt. of impact modifier obtained by carrying out graft polymerization of styrene monomer and acrylonitrile monomer with a rubber selected from a group consisting of butadiene rubber, isoprene rubber, butadiene-styrene copolymer or alkylacrylate rubber; and (F) 0.1-5 pts.wt. of olefin-based lubricant. |
