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Flame retardancy and thermal degradation of intumescent flame retardant starch-based biodegradable composites / Kun Wu in Industrial & engineering chemistry research, Vol. 48 N° 6 (Mars 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 6 (Mars 2009) . - pp. 3150–3157 Titre : Flame retardancy and thermal degradation of intumescent flame retardant starch-based biodegradable composites Type de document : texte imprimé Auteurs : Kun Wu, Auteur ; Yuan Hu, Auteur ; Lei Song, Auteur Année de publication : 2009 Article en page(s) : pp. 3150–3157 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Biodegradable  polyvinyl  alcohol  Thermoplastic  starch  Microencapsulated  ammonium  polyphosphate  Microscale  combustion  calorimeter Résumé : Biodegradable PVA/glycerol-plasticized thermoplastic starch (TPS) and its intumescent flame retardant composites are prepared. Microencapsulated ammonium polyphosphate (MCAPP) was used not only to utilize the charring capacity of the polyhydric compounds but also to restrain the reaction between APP and starch during processing. The flame retardancy and thermal stability of TPS and TPS/MCAPP were characterized by LOI, UL 94, TG, and microscale combustion calorimeter (MCC). TPS/MCAPP composites with only 2 wt % MCAPP can pass V-0 in UL 94 test. However, neat TPS cannot pass any rating. The presence of MCAPP can reduce the total heat release of TPS sharply in MCC test. The thermal degradation and gas products of TPS and TPS/MCAPP were monitored by TG-FTIR and dynamic FTIR. XPS and SEM measurements were utilized to investigate the chemical structure, as well as the surface morphology of the residual char. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801230h [article] Flame retardancy and thermal degradation of intumescent flame retardant starch-based biodegradable composites [texte imprimé] / Kun Wu, Auteur ; Yuan Hu, Auteur ; Lei Song, Auteur . - 2009 . - pp. 3150–3157. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 6 (Mars 2009) . - pp. 3150–3157 Mots-clés : Biodegradable  polyvinyl  alcohol  Thermoplastic  starch  Microencapsulated  ammonium  polyphosphate  Microscale  combustion  calorimeter Résumé : Biodegradable PVA/glycerol-plasticized thermoplastic starch (TPS) and its intumescent flame retardant composites are prepared. Microencapsulated ammonium polyphosphate (MCAPP) was used not only to utilize the charring capacity of the polyhydric compounds but also to restrain the reaction between APP and starch during processing. The flame retardancy and thermal stability of TPS and TPS/MCAPP were characterized by LOI, UL 94, TG, and microscale combustion calorimeter (MCC). TPS/MCAPP composites with only 2 wt % MCAPP can pass V-0 in UL 94 test. However, neat TPS cannot pass any rating. The presence of MCAPP can reduce the total heat release of TPS sharply in MCC test. The thermal degradation and gas products of TPS and TPS/MCAPP were monitored by TG-FTIR and dynamic FTIR. XPS and SEM measurements were utilized to investigate the chemical structure, as well as the surface morphology of the residual char. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801230h