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Thermoplastic polyurethanes as carbonization agents in intumescent blends. Part 2: thermal behavior of polypropylene/thermoplastic polyurethane/ammonium polyphosphate blends
(Continued from 17 (1999), 494-513). Melt blending of TPU (thermoplastic polyurethane) and APP (ammonium polyphosphate) additives in a PP (polypropylene) matrix improves fire properties of the polypropylene-based materials via an intumescence process. The protective effect of intumenscence is studied considering the thermal stability of a particular fire retardant PP/TPU/APP blend in the conditions of its thermo-oxidative degradation. Thermogravimetric analysis allows the computation of the degradation rate of a particular system using the Invariant Kinetic Parameters method. A reaction between APP and TPU leads to the formation of the intumescent shield and gives a material with improved thermal stability. Presented is the computed temperature of the degradation front of the blend that is proposed as a probe for the estimation of the fire retardancy.
Thermoplastic polyurethanes as carbonization agents in intumescent blends. Part 2: thermal behavior of polypropylene/thermoplastic polyurethane/ammonium polyphosphate blends
(Continued from 17 (1999), 494-513). Melt blending of TPU (thermoplastic polyurethane) and APP (ammonium polyphosphate) additives in a PP (polypropylene) matrix improves fire properties of the polypropylene-based materials via an intumescence process. The protective effect of intumenscence is studied considering the thermal stability of a particular fire retardant PP/TPU/APP blend in the conditions of its thermo-oxidative degradation. Thermogravimetric analysis allows the computation of the degradation rate of a particular system using the Invariant Kinetic Parameters method. A reaction between APP and TPU leads to the formation of the intumescent shield and gives a material with improved thermal stability. Presented is the computed temperature of the degradation front of the blend that is proposed as a probe for the estimation of the fire retardancy.
Thermoplastic polyurethanes as carbonization agents in intumescent blends. Part 2: thermal behavior of polypropylene/thermoplastic polyurethane/ammonium polyphosphate blends
Thermoplastische Polyurethane als Carbonisierungsmittel in aufgasenden Mischungen. Teil 2: thermisches Verhalten von Mischungen aus Polypropylen/thermoplastischem Polyurethan/Ammoniumpolyphosphat
Bugajny, M. (author) / Bras, M. Le (author) / Bourbigot, S. (author)
Journal of Fire Sciences ; 18 ; 7-27
2000
21 Seiten, 11 Bilder, 2 Tabellen, 21 Quellen
Article (Journal)
English