Thermal and fire retardant properties of polyurea

被引:1
作者
Mariappan, Thirumal
Wilkie, Charles A. [1 ]
机构
[1] Marquette Univ, Dept Chem, Milwaukee, WI 53201 USA
关键词
polyurea; fire retardant additives; thermal properties; fire retardancy; cone calorimetry;
D O I
暂无
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The thermal and fire retardant properties of polyurea, formed by the polyaddition reaction of a modified diisocyanate with an oligomeric diamine, have been studied using thermogravimetric analysis and cone calorimetry as the principal tools. Approximately forty different conventional fire retardant additives including halogens (chlorine and bromine), phosphorus (nearly all oxidation states), mineral fillers, melamine compounds and intumescent additives were used at constant loading of 15 wt. % for all samples (except mineral fillers, 30 wt. %) and evaluated in polyurea. The thermal properties (onset, maximum degradation temperature and char residue) of filled polyurea samples are compared with the control sample. The fire retarded polyurea samples have been screened on the basis of the percentage reduction of peak heat release rate and smoke evolution.
引用
收藏
页码:371 / 384
页数:14
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