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Effect of Ni 2+ chelated to the surface of PBFA on the charring flame retardant and smoke suppression properties of epoxy resin
Author(s) -
Zhang Kailun,
Wu Hongjuan,
Wu Ruifang,
Yang Guang,
Wang Tian,
Xie Jixing,
Qu Hongqiang
Publication year - 2020
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.25492
Subject(s) - fire retardant , cone calorimeter , charring , materials science , epoxy , composite material , smoke , nuclear chemistry , combustion , char , chemistry , organic chemistry
Abstract Here, a phosphazene‐based flame retardant (PBFA) containing active amine groups was synthesized by hexachlorocyclotriphosphazene and N‐aminoethylpiperazine and nickel ion (Ni 2+ ) was chelated to the surface of PBFA (named as PBFA‐Ni 2+ ). Incorporation into epoxy resin (EP) with a loading of 6 wt% (named as EP/PBFA‐Ni 2+ ‐6.0), enabled the composite to pass the vertical burning test (UL‐94) V 0 rating. Peak heat release rate and the total smoke release of EP/PBFA‐Ni 2+ ‐6.0 were decreased by 41.02% and 22.74% as measured by cone calorimeter tests. The production rate of CO was inhibited when PBFA‐Ni 2+ was incorporated into EP.