Synthesis of Novel Polyphosphonate Flame Retardants for Epoxy Resins

DOI

10.2991/icmia-17.2017.104How to use a DOI?

Keywords

DOPO; phenylphosphonic dichloride; epoxy resins; flame retardant; thermal stability

Abstract

A novel halogen-free flame retardant of polyphosphonate (PDDP), has been synthesized by the melt polymerization. The structure of PDDP has been characterized by fourier transform infrared spectroscopy and nuclear magnetic resonance spectra. Results of vertical burning (UL-94), limiting oxygen index (LOI), and the cone calorimeter test rereveal that the PDDP could effectively improve the flame-retardant performance of EP, and PDDP also have a synergistic effect with APP. With the 12wt. % PDDP loading, the EP composites reached UL-94 V-0 rating with a LOI value of 35.0%, the peak of heat release rate and total heat release value decreased by 54.8 % and 26.8%, respectively. The comprehensive test results shows that the improvement of flame retardancy of the EP composites is attributed to the synergistic action of the condensed and gas phases.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shulei Li
AU  - Yinjie Wang
AU  - Jiping Liu
AU  - Wei Zhao
PY  - 2017/06
DA  - 2017/06
TI  - Synthesis of Novel Polyphosphonate Flame Retardants for Epoxy Resins
BT  - Proceedings of the 2017 6th International Conference on Measurement, Instrumentation and Automation (ICMIA 2017)
PB  - Atlantis Press
SP  - 591
EP  - 594
SN  - 1951-6851
UR  - https://doi.org/10.2991/icmia-17.2017.104
DO  - 10.2991/icmia-17.2017.104
ID  - Li2017/06
ER  -