Thermal Stability and Flame Retardancy of Rigid Polyurethane Foams/Organoclay Nanocomposites

被引:29
作者
Xu, Zhongbin [1 ]
Tang, Xiling [1 ]
Zheng, Jinyang [1 ]
机构
[1] Zhejiang Univ, Inst Chem Proc Equipment & Control Engn, State Key Lab Polymer React Engn, Coll Mat Sci & Chem Engn, Hangzhou 310027, Peoples R China
关键词
Flame retardancy; Organoclay; Rigid polyurethane foams; Surface-modifier; Thermal stability;
D O I
10.1080/03602550802391607
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 stability and flame retardancy of a new kind of rigid polyurethane (PU) foams/organoclay nanocomposites developed by our research group were investigated by using thermogravimetry analysis (TGA) and cone calorimeter test. Results indicate that compared with pure PU foams, rigid PU foams/organoclay composites show significantly enhanced thermal stability and flame retardancy. The reasons leading to the results were discussed in detail by relating with the morphology of the composites. The discussion suggests that the enhancement degree of thermal stability and flame retardancy of composites compared with that of PU foams coincides well with the sequences of gallery spacing of organoclay in the PU matrix.
引用
收藏
页码:1136 / 1141
页数:6
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