Kinetics study of thermal decomposition of epoxy resins containing flame retardant components

Hyperbranched polyphosphate ester (HPPE) and phenolic melamine (PM) were blended in different ratios with a commercial epoxy resin to obtain a series of flame retardant resins. The thermal decomposition mechanism of their cured products in air was studied by thermogravimetric analysis and in situ Fo...

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Bibliographic Details
Published in:Polymer degradation and stability 2006-08, Vol.91 (8), p.1747-1754
Main Authors: Wang, Qingfeng, Shi, Wenfang
Format: Article
Language:English
Subjects:
Activation energy
Applied sciences
Decomposition kinetics
Epoxy resin
Exact sciences and technology
Flame retardant
Hyperbranched
Inorganic and organomineral polymers
Physicochemistry of polymers
Polyphosphate ester
Properties and characterization
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Summary:Hyperbranched polyphosphate ester (HPPE) and phenolic melamine (PM) were blended in different ratios with a commercial epoxy resin to obtain a series of flame retardant resins. The thermal decomposition mechanism of their cured products in air was studied by thermogravimetric analysis and in situ Fourier-transform infrared spectroscopy. The degradation behaviours of epoxy resins containing various flame retardant components were found to be greatly changed. The incorporation of phosphorus and nitrogen compounds improved the thermal stability at elevated temperature. The kinetics of thermal decomposition was evaluated by Kissinger method, Flynn–Wall–Ozawa method and Horowitz–Metzger method. The results showed that the activation energy at lower degree of the degradation decreased by the incorporation of flame retardant components, while increased at higher degree of the degradation.
ISSN:0141-3910
1873-2321
DOI:10.1016/j.polymdegradstab.2005.11.018