阻燃高抗冲聚苯乙烯/有机改性蒙脱土纳米复合材料阻燃效应的研究(Ⅰ)——传统阻燃剂与改性蒙脱土的阻燃协效性  

Studies on Fire Retarding Effect of Fire Retardant HIPS/Organo-MMT Nanocomposite ——Synergistic Effect Between Conventional Additive and Organo-modified MMT

作　　者：尤飞[1] 李玉臻 杨玲[1] 胡源[1] 陈祖耀[3] 

机构地区：[1]中国科技大学火灾科学国家重点实验室,合肥安徽230026 [2]安徽省合肥市消防支队,合肥安徽230030 [3]中国科技大学化学系,合肥安徽230026

出　　处：《火灾科学》2004年第2期123-127,共5页Fire Safety Science

基　　金：国家自然科学基金(50003008);科技部973项目(2001CB409600);安徽"十五"科技攻关项目;国家自然科学基金国

摘　　要：运用"一步熔融共混法"制备了包含十溴联苯醚(DBDPO) 氧化锑(Sb2O3)和蒙脱土(MMT) 十六烷基三甲基溴化铵(C16BrN)阻燃体系的高抗冲聚苯乙烯(HIPS)复合材料,并通过X射线衍射(XRD)、透射电镜(TEM)、UL94垂直燃烧测试和锥形量热计等测试手段对其结构形貌和燃烧性能进行了表征。结果表明,在传统阻燃剂DBDPO存在前提下,仍然获取了具有插层结构的高抗冲聚苯乙烯/蒙脱土(HIPS/MMT)纳米复合材料。燃烧特性实验发现两种阻燃体系在HIPS基体中具有良好协效性,复合材料热释放速率大幅下降。这种效应为减少溴系阻燃剂用量以降低生产成本和减轻不良环境效应提供了依据,对于发展绿色环保型高性能聚合物阻燃复合材料非常有意义。High impact polystyrene (HIPS) composites containing both Decabromodiphenyl oxide (DBDPO)-antimony (Sb2O3) and Montmorillonite (MMT, pristine clay)- Hexadecyl trimethyl ammonium bromide (C16BrN) flame retarding system packages were prepared by One-Step Melt Blending in One-Pot. X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Underwriters Laboratory Vertical Burning Test (UL 94 V) and Cone Calorimeter Test have been performed to characterize the morphology and combustion properties of the fire retardant composites. Results show that HIPS-based nanocomposites with intercalation structure in the presence of DBDPO can be obtained, and much decreased heat release rate is achieved due to the good synergistic effect between MMT-C16BrN and DBDPO-antimony. This effect provides evidence for the reduction use of halogen-contained flame retardants in one composite system for the purpose of lowering the production cost and lessening unwanted environment effects and is very meaningful for the development of green ecological polymer-based fire retardant composites.

关 键 词：聚苯乙烯 改性 蒙脱土 纳米复合材料 阻燃效应 阻燃剂 协效性 一步熔融共混法 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业] TB383[一般工业技术—材料科学与工程]