Flame retardancy of glass fiber reinforced high temperature polyamide by use of aluminum diethylphosphinate: thermal and thermo‐oxidative effects |
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| Authors: | Henrik Seefeldt Erik Duemichen Ulrike Braun |
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| Affiliation: | 1. BAM Federal Institute for Materials Research and Testing, , 12200 Berlin, Germany;2. Beuth University of Applied Sciences, Department for Mathematics, Physics, Chemistry, , D‐13353 Berlin, Germany |
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| Abstract: | Glass fiber reinforced polyamide (PA) 6 T/DT flame retarded with aluminum diethylphosphinate (AlPi) was tested to assess its flame retardant properties. Models for the decomposition of PA 6T/DT with and without AlPi are presented. Thermal decomposition was measured by performing TGA with Fourier transform infrared (FTIR) spectroscopy and FTIR spectroscopy in the condensed phase. Fire behavior was studied using a cone calorimeter and flammability was tested with UL 94 and the limiting oxygen index. AlPi works as an effective flame retardant for glass fiber reinforced PA 6T/DT materials, acting in the gas phase. Also observed was condensed‐phase action, which occurs especially under oxidative conditions before the samples ignite. © 2013 Society of Chemical Industry |
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| Keywords: | flame retardancy high temperature polyamide 6T/DT aluminum phosphinate degradation |
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