Synthesis, characterization, and cure properties of a halogen-free phosphate-based inherently flame retardant epoxy resin | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

4608694

Reference Type

Journal Article

Title

Synthesis, characterization, and cure properties of a halogen-free phosphate-based inherently flame retardant epoxy resin

Author(s)

Wang, XD

Year

2006

Is Peer Reviewed?

Yes

Journal

ACS Symposium Series
ISSN: 0097-6156
EISSN: 1947-5918

Book Title

ACS SYMPOSIUM SERIES

Volume

922

Page Numbers

266-279

Web of Science Id

WOS:000236871600021

Abstract

A phosphorus-containing oligomer, bis(3-hydroxyphenyl) phenyl phosphate (BHPP), was synthesized through the reaction of phenyl dichlorophosphate and 1,3-dihydroxy-benzene, and characterized by elemental analysis, Fourier transform infrared (FTIR), H-1-NMR, and P-31-NMR spectroscopy Subsequently, phosphate-based epoxy resins, with phosphorus contents of 1 and 2 wt %, were prepared via the reaction of diglycidyl ether of bisphenol-A, BHPP and bisphenol-A, and were characterized by FTIR and gel permeation chromatography Phenolic melamine, novolac, and dicyanodiamide were used as curing agents to prepare the thermoset resins with the control and the phosphate-based epoxy resins Thermal analysis investigations revealed that the thermoset resins cured with phenolic melamine exhibited higher glass-transition temperatures than the others, owing to the high rigidity of their molecular chain Thermogravimetric analysis demonstrated that the decomposition temperatures of the thermoset resins cured with novolac were higher than those of the others A synergistic flame retardant effect from the combination of the phosphate-based epoxy resin and the nitrogen-containing curing agent has been observed.