文章摘要
阻燃抑烟环氧树脂的制备与性能
Preparation and Properties of Flame Retardancy and Smoke Suppression Epoxy Resin
  
DOI:10.16865/j.cnki.1000-7555.2017.09.027
中文关键词: 层状双氢氧化物  七钼酸根离子  环氧树脂  阻燃  抑烟
英文关键词: layered double hydroxides  heptamolybdate  epoxy resins  flame retardancy  smoke suppression
基金项目:安徽省自然科学基金资助项目(1708085ME113)
作者单位
徐宝羚,徐文总,王少卿,张丙亮,李爱娇 安徽建筑大学 材料与化学工程学院,安徽 合肥 230601 
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中文摘要:
      通过离子交换法将七钼酸根离子插入到含硝酸根的MgAl层状双氢氧化物(NO3-MgAlLDHs)的层间,得到含钼酸根的MgAl层状双氢氧化物(Mo-MgAlLDHs),并将制得的LDHs加入到环氧树脂(ER)中制成复合材料ER/LDHs。通过热重分析、锥形量热、极限氧指数和烟密度等测试对复合材料的性能进行分析,结果表明,与纯ER相比,ER/LDHs复合材料的最大热释放速率(PHRR)、总的热释放量(THR)和烟密度都降低,氧指数提高,而且ER/Mo-MgAlLDHs复合材料的阻燃抑烟性能要比ER/NO3-MgAlLDHs的更好;同时,添加少量LDHs可以提高复合材料的力学性能。
英文摘要:
      Heptamolybdate (Mo7O6-24) was intercalated in the interlayer space between MgAl layered double hydroxides (Mo-MgAl LDHs) by the ion exchange method, then LDHs were added to epoxy resin (ER) and ER/LDHs composites were prepared. The performance of the ER/LDHs was evaluated by thermal gravimetric analysis (TGA), cone calorimeter, limit oxygen index (LOI)and smoke density test. The results show that ER/Mo-MgAl LDHs composites exhibit a lower peak heat release rate (PHRR), total heat release (THR) and smoke density,and higher LOI, in comparison with neat ER. While the flame retardancy and smoke suppression of ER/Mo-MgAl LDHs composites are better than those of ER/NO3-MgAl LDHs composites. Meanwhile, LDHs would improve the mechanical properties at a low content.
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