高等学校化学学报2013，Vol.34Issue(2)：467-473,7.DOI:10.7503/cjcu20120497
酸碱处理蒙脱土与磷酸酯阻燃剂复配阻燃PC/ABS合金
Synergistic Flame Retardant of Acid or Alkali-treated Montmrillonite/Phosphate Flame Retardant in PC/ABS Blends
摘要
Abstract
Acid-treated montmrillonite(a-MMT) and alkali-treated montmrillonite(b-MMT) were prepared by modifying Na-montmorillonite(Na-MMT) with hydrochloric acid or sodium hydroxide, which were used with phosphate to synergistic flame retard polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) blends. Effects of a-MMT and b-MMT on the flammability property and thermal stability of the blends were investigated by X-ray diffraction (XRD) , thermogravimetry(TG) , microscale combustion calorimeter(MCC) , scanning electron microscope(SEM) and so on. The results show that 1,3-benzenenediol polymer with phosphoric trichloride phenyl ester (BDP) modified montmorillonite ( BDP-MMT) decreased the initial decomposition temperature of the flame retardant PC/ABS blends, while a-MMT and b-MMT increased it. The addition of BDP-MMT deteriorated the barrier property of carbon layer. But a-MMT and b-MMT enhanced the thermal stability of carbon layer and delayed the time of second peak of heat release rate(PHRR2). Moreover, PC/ABS blends flame resisted by montmrillonite treated with proper acid concentration were classified as UL-94 V-0.关键词
聚碳酸酯/丙烯腈-丁二烯-苯乙烯三元共聚物/磷酸酯/蒙脱土/酸碱处理/阻燃剂Key words
Polycarbonate/ Acrylonitrile-butadiene-styrene/ Phosphate/ Montmorillonite/ Acid-treated and alkali-treated/ Flame retardant分类
化学化工引用本文复制引用
冉诗雅,许远远,郭正虹,方征平..酸碱处理蒙脱土与磷酸酯阻燃剂复配阻燃PC/ABS合金[J].高等学校化学学报,2013,34(2):467-473,7.基金项目
浙江省重点科技创新团队(批准号:2009R50004)资助. （批准号:2009R50004）
