Flame retardant synergism of rubber and Mg(OH)2 in EVA composites
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- 作者：Hua Gui ; Xiaohong Zhang ; Weifu Dong ; Qingguo Wang ; Jianming Gao ; Zhihai Song ; Jinmei Lai ; Yiqun Liu ; Fan Huang ; Jinliang Qiao
- 关键词：Flame retardance ; Nano-magnesium hydroxide ; Synergistic effect
- 刊名：Polymer
- 出版年：2007
- 出版时间：24 April 2007
- 年：2007
- 卷：48
- 期：9
- 页码：2537-2541
- 全文大小：730 K
文摘
A synergistic effect on flame retardancy was found when acrylonitrile butadiene ultra-fine fully vulcanized powdered rubber (NB-UFPR) was incorporated into ethylene vinyl acetate/nano-magnesium hydroxide (EVA/nano-MH) composite by a new process. The fire performance of EVA and EVA composites was compared in this communication by cone calorimeter test (CCT). The CCT data indicated that the addition of NB-UFPR in EVA/nano-MH system not only reduced the heat release rate, but also prolonged the ignition time of the composite, which is contrary to the effect of NB-UFPR when it was added alone in EVA polymer. Thermogravimetric analysis revealed that nano-MH accelerated the loss of acetic acid, but NB-UFPR assisted to reduce nano-MH's accelerating effect. FTIR spectra showed a new absorption at 3374 cm−1 in the blends of EVA/NB-UFPR and EVA/NB-UFPR/nano-MH.