Construction of layer-by-layer assembled chitosan/titanate nanotubes based nanocoating on cotton fabrics : flame retardant performance and combustion behavior

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

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Author(s)

  • Haifeng Pan
  • Wei Wang
  • Ying Pan
  • Wenru Zeng
  • Jing Zhan
  • Lei Song
  • Yuan Hu

Detail(s)

Original languageEnglish
Pages (from-to)911-923
Journal / PublicationCellulose
Volume22
Issue number1
Online published11 Jan 2015
Publication statusPublished - Feb 2015

Abstract

A flame retardant nanocoating made from chitosan and titanate nanotubes was deposited on the surface of cotton fabric by the layer by layer assembly to improve its flame retardancy. Firstly, the hydrothermal method was used to prepare titanate nanotubes. Then, coated cotton fabrics were prepared by alternately submersing cotton fabrics into chitosan solution and titanate nanotube suspension. The structure of nanocoating on cotton fabric surface was tailored by altering number of bilayers and the concentration of titanate nanotube suspension. X-ray photoelectron spectroscopy confirmed that titanate nanotube filled nanocoating was successfully deposited on the surface of cotton fabric. Furthermore, the titanate nanotubes assembled a randomly oriented and entangled network structure, as can be observed by scanning electron microscopy. The thermogravimetric analysis result indicated that the thermal and thermal-oxidation stability of all coated cotton fabrics were both improved in the high temperature range from 330 to 700 °C. The microscale combustion calorimeter result showed that all coated cotton fabrics have the reduction in peak heat release rate and total heat release compared with that of pristine cotton fabric. Moreover, the reduction was dependent on the concentration of titanate nanotube suspension and number of bilayers. The improved flame retardancy can be ascribed to the protective effect of the titanate nanotube network structure formed, which acts as a physical barrier to retard the heat, oxygen and mass transfers between the flame and underlying material.

Research Area(s)

  • Flame retardancy, Network structure, Protective effect, Titanate nanotubes

Citation Format(s)

Construction of layer-by-layer assembled chitosan/titanate nanotubes based nanocoating on cotton fabrics : flame retardant performance and combustion behavior. / Pan, Haifeng; Wang, Wei; Pan, Ying; Zeng, Wenru; Zhan, Jing; Song, Lei; Hu, Yuan; Liew, Kim Meow.

In: Cellulose, Vol. 22, No. 1, 02.2015, p. 911-923.

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