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Flame retardant mechanism of polymer/clay nanocomposites based on polypropylene
The combustion behaviour and thermal-oxidative degradation of polypropylene/clay nanocomposite has been studied in this paper. The influence of compatibiliser, alkylammonium, organoclay, protonic clay and pristine clay is considered, respectively. The decrease of HRR (heat release rate) is mainly due to the delay of thermal-oxidative decomposition of the composites. The active sites on clay layers can catalyse the initial decomposition and the ignition of the composites. On the other hand, the active sites can catalyse the formation of a protective coating char on the samples. Moreover, the active sites can catalyse the dehydrogenation and crosslinking of polymer chains. Accordingly, the thermal-oxidative stability is increased and HRR is decreased.
Flame retardant mechanism of polymer/clay nanocomposites based on polypropylene
The combustion behaviour and thermal-oxidative degradation of polypropylene/clay nanocomposite has been studied in this paper. The influence of compatibiliser, alkylammonium, organoclay, protonic clay and pristine clay is considered, respectively. The decrease of HRR (heat release rate) is mainly due to the delay of thermal-oxidative decomposition of the composites. The active sites on clay layers can catalyse the initial decomposition and the ignition of the composites. On the other hand, the active sites can catalyse the formation of a protective coating char on the samples. Moreover, the active sites can catalyse the dehydrogenation and crosslinking of polymer chains. Accordingly, the thermal-oxidative stability is increased and HRR is decreased.
Flame retardant mechanism of polymer/clay nanocomposites based on polypropylene
Qin, Huaili (author) / Zhang, Shimin (author) / Zhao, Chungui (author) / Hu, Guangjun (author) / Yang, Mingshu (author)
2005
10 Seiten
Article (Journal)
English
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