Melamine-containing polyphosphazene wrapped ammonium polyphosphate : A novel multifunctional organic-inorganic hybrid flame retardant

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)839-848
Journal / PublicationJournal of Hazardous Materials
Volume344
Online published20 Nov 2017
Publication statusPublished - 15 Feb 2018

Abstract

To achieve superior fire safety epoxy resins (EP), a novel multifunctional organic-inorganic hybrid, melamine-containing polyphosphazene wrapped ammonium polyphosphate (PZMA@APP) with rich amino groups was prepared and used as an efficient flame retardant. Thanks to the cross-linked polyphosphazene part, PZMA@APP exhibited high flame retardant efficiency and smoke suppression to the EP composites. Thermogravimetric analysis indicated that PZMA@APP significantly enhanced the thermal stability of EP composites. The obtained sample passed UL-94 V-0 rating with 10.0 wt% addition of PZMA@APP. Notably, inclusion of incorporating PZMA@APP leads to significantly decrease on fire hazards of EP, for instance, bring about a 75.6% maximum decrease in peak heat release rate and 65.9% maximum reduction in total heat release, accompanied with lower smoke production rate and higher graphitized char layer. With regards to mechanical property, the glass transition temperature of EP/PZMA@APP10.0 was as high as 184.5 °C. In particular, the addition of PZMA@APP did not worsen the mechanical properties, compared to pure APP. It was confirmed that the participation of melamine-containing polyphosphazene could significantly enhance the quality of char layer and thereby resulting the higher flame retardant efficiency of PZMA@APP.

Research Area(s)

  • Composites, Flame retardant, Microencapsulation, Polyphosphazene, PZMA@APP

Citation Format(s)

Melamine-containing polyphosphazene wrapped ammonium polyphosphate: A novel multifunctional organic-inorganic hybrid flame retardant. / Qiu, Shuilai; Ma, Chao; Wang, Xin et al.
In: Journal of Hazardous Materials, Vol. 344, 15.02.2018, p. 839-848.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review