Structure, flame retarding and smoke suppressing properties of Zn-Mg-Al-CO3 layered double hydroxides

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• 作者：Ling Shi (1)
  Dianqing Li (1)
  Sufeng Li (1)
  Jianrong Wang (1)
  D. G. Evans (1)
  Xue Duan (1)
  
• 关键词：layered double hydroxides ; flame retardancy ; smokesuppression
• 刊名：Chinese Science Bulletin
• 出版年：2005
• 出版时间：June 2005
• 年：2005
• 卷：50
• 期：11
• 页码：1101-1104
• 全文大小：1233KB
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• 作者单位：Ling Shi (1)
  Dianqing Li (1)
  Sufeng Li (1)
  Jianrong Wang (1)
  D. G. Evans (1)
  Xue Duan (1)
  
  1. Key Laboratory for Science and Technology of Controllable Chemical Reactions, Ministry of Education, Beijing University of Chemical Technology, 100029, Beijing, China
  
• ISSN：1861-9541

文摘

Zn-Mg-Al-CO3 layered double hydroxides (LDHs) have been synthesized by a new method involving separate nucleation and aging steps. The Zn-Mg-Al-CO3 LDHs were characterized by XRD, FT-IR, ICP and TG-DTA. The limiting oxygen index and smoke density of composites of the LDHs with EVA-28 were determined. Incorporation of Zn in the layers of the LDHs was found promoting material charring and smoke suppression. The mechanism of flame retardation and smoke suppression is discussed. The results show that Zn-Mg-Al-CO3 LDHs have better flame retarding and smoke suppressing effects than Mg-Al-CO3 LDHs.