期刊
HIGH PERFORMANCE POLYMERS
卷 26, 期 1, 页码 114-121出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0954008313501008
关键词
Hexaphenoxycyclotriphosphazene; epoxy resin composites; thermal properties; flame retardancy
资金
- Development Project of Jilin Province Science and Technology of China [20100 544]
- International Cooperative Project of Science and Technology Bureau of Changchun [2010064]
- Natural Science Foundation of China [51003037]
Hexaphenoxycyclotriphosphazene (HPCTP) was synthesized by a nucleophilic substitution reaction between hexachlorocyclotriphosphazene and phenol. The chemical structure of HPCTP was then characterized by Fourier transform infrared spectroscopy as well as H-1 and P-31 nuclear magnetic resonance spectroscopy. The synthesized HPCTP was incorporated into the diglycidyl ether of bisphenol A to prepare epoxy resin (EP) composites using 4,4-diamino diphenylmethane as curing agent. The thermal and flame-retardant properties of cured samples were investigated by differential scanning calorimetry, thermogravimetric analysis, UL-94 vertical burning test, and cone calorimetry. Evaluation of thermal properties demonstrated that the resulting composites achieved high thermal stability with high char yields. The UL-94 V-0 rating was easily achieved with the addition of HPCTP, and the heat release intensity simultaneously decreased. Results of scanning electron microscopy and energy-dispersive x-ray spectroscopy confirmed that HPCTP can enhance the thermal stability and flame retardancy of epoxy resin.
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