Constructing 3D Polyphosphazene Nanotube@Mesoporous Silica@Bimetallic Phosphide Ternary Nanostructures via Layer-by-Layer Method : Synthesis and Applications

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

19 Scopus Citations
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Author(s)

  • Yongqian Shi
  • Bibo Wang
  • Xia Zhou
  • Junling Wang
  • Chengming Wang
  • Chandra Sekhar Reddy Gangireddy
  • Yuan Hu

Detail(s)

Original languageEnglish
Pages (from-to)23027-23038
Journal / PublicationACS Applied Materials and Interfaces
Volume9
Issue number27
Online published15 Jun 2017
Publication statusPublished - 12 Jul 2017

Abstract

A novel ternary nanostructure polyphosphazene nanotube (PZS)@ mesoporous silica (M-SiO2)@bimetallic phosphide (CoCuP) was facilely fabricated, using PZS as the template, where large amount of cetyltrimethylammonium bromide molecules were anchored to PZS via a similar layer-by-layer assembly strategy, and then uniform M-SiO2 shells can be formed successfully by Hyeon’s coating method. Subsequently, the three-dimensional (3D) nanostructure on the basis of bimetallic phosphide (CoCuP) interconnected with PZS@M-SiO2 was synthesized via a convenient, mild hydrothermal route. It is noted that incorporating well-designed PZS@M-SiO2@CoCuP led to significant decrease on fire hazard of thermoplastic polyurethane (TPU), that is, 58.2% and 19.4% reductions in peak heat release rate and total heat release, respectively, as well as lower toxic hydrogen cyanide and carbon monoxide yield accompanied by higher graphitized char layer. In the case of TPU/PZS@M-SiO2@CoCuP system, the storage modulus at −97 °C was dramatically improved by 62.6%, and glass transition temperature was shifted to higher value, compared to those of pure TPU. The enhanced fire safety and mechanical property for TPU composites can be ascribed to tripartite cooperative effect from respective parts (CoCuP and M-SiO2) plus the PZS.

Research Area(s)

  • PZS@M-SiO2@CoCuP, composites, layer-by-layer, mechanism, flame retardant

Citation Format(s)

Constructing 3D Polyphosphazene Nanotube@Mesoporous Silica@Bimetallic Phosphide Ternary Nanostructures via Layer-by-Layer Method : Synthesis and Applications. / Qiu, Shuilai; Shi, Yongqian; Wang, Bibo; Zhou, Xia; Wang, Junling; Wang, Chengming; Gangireddy, Chandra Sekhar Reddy; Yuen, Richard K. K.; Hu, Yuan.

In: ACS Applied Materials and Interfaces, Vol. 9, No. 27, 12.07.2017, p. 23027-23038.

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