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《Journal of Hebei University(Natural Science Edition)》 2004-01
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Study on the Thermal Degradation of Cotton Cellulose Treated with Flame Retardants

TIAN Chun_ming, SHI Jian_bing, XIE Ji_xing, QU Hong_qiang, XU Jian_zhong(College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China)  
The thermal degradation of cotton cellulose treated with flame retardants containing tetrakis(hydroxymethyl)phosphonium chloride and some synergistic reagents was studied by thermal analysis,limiting oxygen index(LOI) and char yield.The thermal degradation process and flame retardant mechanism were also discussed.Our experiments demonstrated the following facts.The temperature of the thermal degradation onset point and the activation energy of the first thermal degradation stage were lower for cotton cellulose treated with flame retardants than those of untreated sample.There was an increase in char yield and LOI for flame retarded samples compared with pure cotton sample.The flame retardance of the samples treated with urea and diammonium hydrogen phosphate were better than those treated with thiourea and hexamethylenamine,respectively.
【Fund】: 河北省自然科学基金资助项目(200075)
【CateGory Index】: TS102
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