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Polymer-Plastics Technology and Engineering Volume 47, 2008 - Issue 11
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Original Articles

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

Zhongbin Xu Institute of Chemical Process Equipment and Control Engineering, Zhejiang University, State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou, People's Republic of China
,
Xiling Tang Institute of Chemical Process Equipment and Control Engineering, Zhejiang University, State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou, People's Republic of China
&
Jinyang Zheng Institute of Chemical Process Equipment and Control Engineering, Zhejiang University, State Key Laboratory of Polymer Reaction Engineering, College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou, People's Republic of ChinaCorrespondence[email protected]
Pages 1136-1141 | Published online: 28 Oct 2008
 
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Abstract

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.

ACKNOWLEDGMENTS

The financial support of Ningbo Science and Technology Project (No: 2006B100060) is gratefully acknowledged.

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