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Journal of Macromolecular Science, Part A
Pure and Applied Chemistry
Volume 46, 2009 - Issue 3
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Original Articles

Flammability and Thermo-Oxidative Decomposition of Epoxy Resin Containing Ammonium Polyphosphate and Metallic Oxide

Lei Song State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui, 230026, PR China
,
Kun Wu State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui, 230026, PR China
,
Yun Wang State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui, 230026, PR China
,
Zhengzhou Wang State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui, 230026, PR China; School of Materials Science and Engineering, Tongji University, Shanghai, 200092, PR China
&
Yuan Hu State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui, 230026, PR China
Pages 290-295 | Received 01 Aug 2008, Accepted 01 Oct 2008, Published online: 22 Jan 2009
 
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Abstract

Cured epoxy resin (EP) composites containing Ammonium Polyphosphate (APP) and metallic oxide were prepared and characterized. The flame retardancy of the composites was studied using LOI, UL 94, cone calorimeter and Laser Raman spectroscopy, etc. The data of LOI, UL 94 and cone calorimeter show that APP is a good flame retardant for EP. The LOI value of the composite containing 20 wt% APP is as high as 38.0% and its UL 94 rating is raised to V-0. The addition of APP and La2O3 leads to the formation of char layer containing smaller carbonaceous microstructures compared with that of EP. Moreover, the thermo-oxidative decomposition of EP and its composites is characterized by dynamic FTIR.

Acknowledgements

The financial support from the National Natural Science Foundation of China (No. 20776136) and the program for New Century Excellent Talents in University and National 11th Five-year Program (2006BAK01B03, 2006BAK06B06, 2006BAK06B07) is acknowledged.

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