Preparation and Flame Retardancy of PC/ABS Alloy Flame Retarded by Polyborosiloxane

doi:10.19491/j.issn.1001-9278.2010.08.007

Abstract

Abstract: The effect of polyborosiloxane on the flame retardancy properties of PC/ABS alloy was evaluated using limited oxygen index and cone calorimeter analysis. When 5 wt % of polyborosiloxane was added, the limited oxygen index of PC/ABS alloy increased from 24 % to 28.6 %, the fire performance index increased 63 %. The addition of polyborosilonaxe also decreased the total heat release and the emission of CO, CO2, and smoke during the combustion of PC/ABS alloy. The presence of polyborosiloxane promoted the formation of the char that protected the material matrix and moderated the combustion process.

Key words: polyborosiloxane, polycarbonate, acrylonitrile-butadiene-styrene copolymer, flame retardancy, limited oxygen index, cone calorimeter analysis

. Preparation and Flame Retardancy of PC/ABS Alloy Flame Retarded by Polyborosiloxane[J]. China Plastics, 2010, 24(08): 28-31 .

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Preparation and Flame Retardancy of PC/ABS Alloy Flame Retarded by Polyborosiloxane

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