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Applications of micro-scale combustion calorimetry to the studies of cotton and nylon fabrics treated with organophosphorus flame retardants
Effective testing methods are critical for developing new flame retardant textiles by the industry. However the current testing methods all have limitations. In this research MCC (micro-scale combustion calorimetry) was applied for evaluating the flammabihty of the cotton woven fabric treated with a traditional reactive organophosphorus flame retardant in combination with a synergistic nitrogen-containing additive and the nylon-6,6 woven fabric treated with a hydroxyl-functional organophosphorus oligomer and crosslinkers. It was found that MCC is capable of differentiating small differences among the treated fabric samples with similar flammabihty. MCC is able to make quantitative measurement of the peak heat release rate, the most important parameter related to fire hazard of materials, of textile whereas such analysis is more difficult using cone calorimetry due to textile fabrics' low thickness. By using the thermal combustion parameters measured by MCC, the LOI (limiting oxygen index) of various treated cotton fabric samples could be calculated with near-perfect agreement between the experimentally measured and the predicted LOI values of treated cotton fabrics. In addition, the capability of MCC and differential scanning calorimetry for analyzing flame retardant cotton textiles was compared.
Applications of micro-scale combustion calorimetry to the studies of cotton and nylon fabrics treated with organophosphorus flame retardants
Effective testing methods are critical for developing new flame retardant textiles by the industry. However the current testing methods all have limitations. In this research MCC (micro-scale combustion calorimetry) was applied for evaluating the flammabihty of the cotton woven fabric treated with a traditional reactive organophosphorus flame retardant in combination with a synergistic nitrogen-containing additive and the nylon-6,6 woven fabric treated with a hydroxyl-functional organophosphorus oligomer and crosslinkers. It was found that MCC is capable of differentiating small differences among the treated fabric samples with similar flammabihty. MCC is able to make quantitative measurement of the peak heat release rate, the most important parameter related to fire hazard of materials, of textile whereas such analysis is more difficult using cone calorimetry due to textile fabrics' low thickness. By using the thermal combustion parameters measured by MCC, the LOI (limiting oxygen index) of various treated cotton fabric samples could be calculated with near-perfect agreement between the experimentally measured and the predicted LOI values of treated cotton fabrics. In addition, the capability of MCC and differential scanning calorimetry for analyzing flame retardant cotton textiles was compared.
Applications of micro-scale combustion calorimetry to the studies of cotton and nylon fabrics treated with organophosphorus flame retardants
Yang, Charles Q. (Autor:in) / He, Qingliang (Autor:in)
Journal of Analytical and Applied Pyrolysis ; 91 ; 125-133
2011
9 Seiten, 9 Bilder, 6 Tabellen, 33 Quellen
Aufsatz (Zeitschrift)
Englisch
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