Synthesis and flammability testing of epoxy functionalized phosphorous‐based flame retardants |
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| Authors: | Vladimir Benin Xuemei Cui Alexander B. Morgan Karl Seiwert |
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| Affiliation: | 1. Department of Chemistry, University of Dayton, Dayton, Ohio;2. Department of Chemical Engineering, University of Dayton, Dayton, Ohio;3. Energy Technology and Materials Division, University of Dayton Research Institute, Dayton, Ohio |
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| Abstract: | Several potential new phosphorus‐containing flame retardant molecules were evaluated for heat release reduction potential by incorporation of the molecules into a polyurethane, generated from methylene diphenyl diisocyanate and 1,3‐propane diol. The heat release reduction potential of these substances was evaluated using the pyrolysis combustion flow calorimeter (PCFC). The polyurethanes were prepared in the presence of the potential flame retardants via solvent mixing and copolymerization methods to qualitatively evaluate their potential reactivity into the polyurethane prior to heat release testing. The functionality of the flame retardants was epoxide based that would potentially react with the diol during polyurethane synthesis. Flammability testing via PCFC showed that the heat release reduction potential of each of the flame retardants was structure dependent, with phosphates tending to show more effectiveness than phosphonates in this study, and alkyl functionalized phosphorus groups (phosphate or phosphonate) being more effective at heat release reduction than cyclic functionalized groups. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132, 42296. |
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| Keywords: | flame retardance properties and characterization synthesis and processing |
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