Abstract
A novel nitrogen-phosphorus compound, diphenyl piperazine-1,4-diylbis(methylphosphinate)(DPPMP) was synthesized via a two step reaction and its flame retarding efficiency as a single component additive was investigated. The success of synthesis was confirmed by FTIR and1H and31P NMR analysis. The product was mixed with polycarbonate (PC), poly(butylene terephtalate) (PBT), ethylene-vinyl-acetate copolymer (EVA), and acrylonitrilebutadiene-styrene copolymer (ABS). The flame-retarding efficiency was evaluated using the limiting oxygen index (LOI) and the UL-94 vertical test methods. The addition of DPPMP enhanced the flame retardancy of the polymers and the V-0 ratings were obtained for the polymers examined in this study at a loading of 7-30 wt%. The gas-phase flame retardancy mode of action was suggested for this material from the thermogrametry experiment results.
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Nguyen, C., Kim, J. Synthesis of a novel nitrogen-phosphorus flame retardant based on phosphoramidate and its application to PC, PBT, EVA, and ABS. Macromol. Res. 16, 620–625 (2008). https://doi.org/10.1007/BF03218570
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DOI: https://doi.org/10.1007/BF03218570