| 摘要 |
PURPOSE: A flame retardant and thermoplastic resin composition is provided, which use as flame retardant mixture of phosphazene compound and phosphoric acid ester morpholide compound, and fiber glass in a suitable range, so that physical property balance such as flame retardant and heat resistant, and mechanical strength is excellent thus enabling the composition to be used for preparing injection molded sheath of computer monitor and the other apparatus. CONSTITUTION: The flame retardant and thermoplastic resin composition comprises (a) 70 to 99 parts by weight of polycarbonate resin represented by formula I; (b) 1 to 30 parts by weight of organic phosphorus compounds consisting of (b1) 5 to 90 wt.% of phosphazene compound selected from linear phosphazene represented by formula II and cyclic phosphazene represented by formula III, wherein R is selected from the group consisting of alkyl, aryl, alkyl substituted aryl, arylalkyl, alkoxy, aryloxyl, amino and hydroxyl, and k is an integer of 0 to 10, and the alkoxy or aryloxy can be substituted by alkyl, aryl, amino or hydroxyl, and (b2) 95 to 10 wt.% of phosphoric acid ester morpholide compound represented by formula IV, wherein x is 1 or 2, R1 is C6-C20 aryl or alkyl substituted C6-C20 aryl, R2 is C6-C30 aryl or alkyl substituted C6-C30 aryl derivatives, n and m are respectively number average polymerization degree and n+m ranges from 0 to 5; (c) 0.05 to 5 parts by weight of fluoride polyolefine resin having average particle size of 0.05 to 1000 μm and density of 1.2 to 2.3 g/cm¬2; and (d) 5 to 15 parts by weight of fiber glass based on 100 parts by weight of the components of (a)+(b)+(c). |
