Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 82, Issue 2, Pages 276-282Publisher
JOHN WILEY & SONS INC
DOI: 10.1002/app.1849
Keywords
rigid polyurethane foam; reactive flame retardant; physical and chemical changes
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Diethyl N,N-diethanolaminomethylphosphate could react with isocyanate because it contained hydroxy group. This was confirmed by FTIR spectrum. It did not produce any effect on the foam structure of rigid polyurethane foam (RPUF). SEM, IR spectrum, and thermal analysis were used for investigation of the physical and chemical changes during the combustion of flame-retardant RPUF. It was shown that the flame retardancy changed the thermal decomposition behavior of RPUF, widened the decomposition temperature region of RPUF, reduced the amounts of decomposition products at high temperatures, and increased the decomposition residuals arisen from charring of flame-retardant RPUF. Those changes improved the flame retardancy of RPUF. (C) 2001 John Wiley & Sons, Inc.
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