Flammability Behavior of Composite Mixed with Retardant Agents

摘要

Flammability characteristics and synergistic effect of zinc borate-antimony trioxide in polymeric composite have been studied by thermal erosion test. Zinc borate was added first to araldite resin reinforced by hybrid carbon-Kevlar fibers as a surface layer (5mm) thickness. Then, the result composite material was exposed to a direct flame generated from Oxyacetylene torch (3000°C) with different flame exposure intervals (10, 20mm), and study the range of resistance of retardant material layer to the flames and protected the substrate. After that, antimony trioxide was added to zinc borate with various amount(10%, 20%, 30%) to forming a hybrid flame retardant for enhance the action of this material to react flame. Hybrid retardant exposure to same flame temperature and exposure distances. Method of measuring the surface temperature opposite to the flame was used to determined the heat transferred to composite material the best results was obtained with large exposed distance and large percentage from protective layer which is zinc borate with (30%) antimony trioxide.