TY - JOUR A1 - Perret, Birgit A1 - Pawlowski, Kristin A1 - Schartel, Bernhard T1 - Fire retardancy mechanisms of arylphosphates in polycarbonate (PC) and PC/acrylonitrile-butadiene-styrene JF - Journal of thermal analysis and calorimetry N2 - The pyrolysis of polycarbonate (PC) and PC/acrylonitrile-butadiene-styrene (PC/ABS) with and without arylphosphates (triphenylphosphate TPP, resorcinol-bis(diphenyl phosphate) RDP and bisphenol A bis(diphenyl phosphate) BDP) is investigated by thermal analysis as key to understanding the flame retardancy mechanisms and corresponding structure-property relationships. The correspondence between the decomposition temperature range of arylphosphates and PC is pointed out as prerequisite for the occurrence of the reaction between arylphosphate and structures that are typical for the beginning of PC decomposition. Resulting cross-linking enhances charring in the condensed phase and competes with the alternative release of phosphate in the gas phase and thus flame inhibition. Flame inhibition was identified as the main flame retardancy mechanism. The additional condensed phase mechanisms optimise the performance. KW - Arylphosphates KW - BDP KW - Flame retardance KW - PC KW - PC/ABS PY - 2009 DO - https://doi.org/10.1007/s10973-009-0379-7 SN - 1388-6150 SN - 1418-2874 SN - 0368-4466 SN - 1572-8943 VL - 97 IS - 3 SP - 949 EP - 958 PB - Kluwer Academic Publ. CY - Dordrecht AN - OPUS4-20330 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schartel, Bernhard A1 - Pawlowski, Kristin A1 - Perret, Birgit T1 - Flame Retardancy Mechanisms in Halogen-Free PC/ABS Blends JF - PMSE preprints KW - Fire Retardancy KW - PC/ABS KW - Arylphosphates KW - Cone Calorimeter KW - UL 94 KW - LOI KW - TG-FTIR PY - 2008 SN - 0743-0515 VL - 98 SP - 245 EP - 246 PB - Division of Polymeric Materials Science and Engineering, American Chemical Society CY - Washington, DC AN - OPUS4-17625 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -