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Fire Resistance Study of PP Thermoplastic Composites with Particulate Reinforcements and Br Flame Retardants  

곽성복 (덕양산업(주))
황성덕 (성균관대학교 고분자공학과)
남재도 (성균관대학교 고분자공학과)
고재송 (산자부 기술표준원 생물환경과)
최형기 (산자부 기술표준원 생물환경과)
Publication Information
Polymer(Korea) / v.26, no.2, 2002 , pp. 260-269 More about this Journal
Abstract
The fire resistance of particulate polypropylene composite systems were investigated by using various reinforced particles such as zeolite, talc, $CaCO_3$ particles. In this study, The effect of particle size on the thermal properties of composite and the effect of reinforced particles on the fire resistance were studied. The inorganic reinforced particles used in this study were recycled zeolite(average particle diameter=85.34 $mu	extrm{m}$), $CaCO_3$ (33.93 $mu	extrm{m}$), and talc (18.51 $mu	extrm{m}$). The fire resistance of composite systems was thoroughly examined by measuring limited oxygen index (LOI, ASTM D2863) and cone calorimetry (ASTM E1354, ISO 5660). Thermal stability of composite systems was thoroughly examined by measuring TGA. The flame retardants (DBDPO) and reinforced particles reduce the maximum heat release rate (M-HRR) in the order of Talc > $CaCO_3$ > recycled Zeolite. Comparing the cone calorimetry experimental results of the particle reinforced polymer composite system exhibited twice higher efficiency than DBDPO in polypropylene systems, and the LOI also showed similar trends to the cone calorimetry experiments. The optical and scanning electron microscopy techniques were used to investigate the composites ash layer and the core fracture surfaces in the burning process. The reinforcing inorganic particles seemed to accumulate at the surface of ash layer, and subsequently intercept the oxygen transport and heat transfer into the core area.
Keywords
fire resistance; cone calorimetry; LOI; flame retardants(DBDPO); thermal stability; reinforced particles; recycled zeolite; CaCO$_3$; talc;
Citations & Related Records

Times Cited By Web Of Science : 5  (Related Records In Web of Science)
Times Cited By SCOPUS : 6
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