原位聚合法PS／蒙脱土复合材料燃烧性能的研究

采用原位聚合法分别制备了聚苯乙烯／有机蒙脱土（PS／OMMT）复合材料和聚苯乙烯／无机蒙脱土（PS／MMT）复合材料、用锥形量热仪测量测试了复合材料的燃烧性能，结果发现复合材料的热释放速率、质量损失速率、生烟速率等均显著降低，说明复合材料具有阻燃性。通过分析材料的燃烧性能和燃烧残余物，探讨了其可能的阻燃机理。还考察了原位聚合法对聚合转化率的影响。研究表明原位聚合法制备的PS／蒙脱土复合材料是一种阻燃效能高、环境友好且实际可行的阻燃体系。

Study on the Flammability of PS/Montmorillonite Composites by In-situ Polymerization

Both PS/OMMT composites and PS/MMT composites are prepared by emulsion polymerization.The cone calorimeter is used to measure the flammability of PS/OMMT composites and PS/MMT composites.The results show that the heat release rates,the mass loss rates and the smoke production rates are all reduced dramatically.The possible mechanism of flame retardancy is discussed based on analysis of the flammability and combustion residues.The effects of composites on the conversion rates of the polymerization are observed.The study shows that the composites are an efficient and environmental friendly flame retarded system for PS.