Hierarchical Polyphosphazene@Molybdenum Disulfide Hybrid Structure for Enhancing the Flame Retardancy and Mechanical Property of Epoxy Resins

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Xia Zhou
  • Weiyi Xing
  • Chandra Sekhar Reddy Gangireddy
  • Zhou Gui
  • Yuan Hu

Detail(s)

Original languageEnglish
Pages (from-to)29147-29156
Journal / PublicationACS Applied Materials and Interfaces
Volume9
Issue number34
Online published8 Aug 2017
Publication statusPublished - 30 Aug 2017

Abstract

A novel polyphosphazene (PZS) microsphere@molybdenum disulfide nanoflower (MoS2) hierarchical hybrid architecture was first synthesized and applied for enhancing the mechanical performance and flame retardancy of epoxy (EP) resin via a cooperative effect. Herein, using PZS microsphere as the template, a layer of MoS2 nanoflowers were anchored to PZS spheres via a hydrothermal strategy. The well-designed PZS@MoS2 exhibits excellent fire retardancy and a reinforcing effect. The obtained PZS@MoS2 significantly enhanced the flame-retardant performance of EP composites, which can be proved by thermogravimetric and cone calorimeter results. For instance, the incorporation of 3 wt % PZS@MoS2 brought about a 41.3% maximum reduction in the peak heat-release rate and decreased by 30.3% maximum in the total heat release, accompanying the higher graphitized char layer. With regard to mechanical property, the storage modulus of EP/PZS@MoS23.0 in the glassy state was dramatically increased to 22.4 GPa in comparison with that of pure EP (11.15 GPa). It is sensible to know that the improved flame-retardant performance for EP composites is primarily assigned to a physical barrier effect of the MoS2 nanoflowers and the polyphosphazene structure has an positive impact on promoting char formation in the condensed phase.

Research Area(s)

  • epoxy resin, flame retardant, mechanical property, MoS2, polyphosphazene

Citation Format(s)

Hierarchical Polyphosphazene@Molybdenum Disulfide Hybrid Structure for Enhancing the Flame Retardancy and Mechanical Property of Epoxy Resins. / Zhou, Xia; Qiu, Shuilai; Xing, Weiyi; Gangireddy, Chandra Sekhar Reddy; Gui, Zhou; Hu, Yuan.

In: ACS Applied Materials and Interfaces, Vol. 9, No. 34, 30.08.2017, p. 29147-29156.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal