Enhanced thermal and mechanical properties of functionalized graphene/thiol-ene systems by photopolymerization technology

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

76 Scopus Citations
View graph of relations

Author(s)

  • Xin Wang
  • Weiyi Xing
  • Hongyu Yang
  • Xiaofeng Wang
  • Lei Song
  • Yuan Hu

Detail(s)

Original languageEnglish
Pages (from-to)318-326
Journal / PublicationChemical Engineering Journal
Volume228
Publication statusPublished - 5 Jul 2013

Link(s)

Abstract

Functionalized graphene nanosheets (FGNSs) were synthesized through surface modification with 3-mercaptopropyl trimethoxysilane and then incorporated into thiol-ene using photopolymerization technology. The structure and morphology of GO, GNS and FGNS were characterized by AFM, XRD, TEM, XPS, FTIR and 29Si NMR. The incorporation of functionalized graphene nanosheets enhanced the thermal properties of thiol-ene nanocomposites. The initial thermal degradation temperature of thiol-ene was increased from 249°C to 362°C and a 30°C increment in the glass transition temperature (Tg) was also achieved with only 1.5wt% FGNS. The storage modulus of thiol-ene was improved by 138% at 1.5wt% loading of FGNS. By contrast, untreated GNS/thiol-ene nanocomposites exhibited relatively lower thermal properties and storage modulus than its modified-GNS counterpart. The excellent reinforcements were attributed to good dispersion of FGNS and strong interfacial adhesion between FGNS and thiol-ene matrix as supported by SEM images of the fracture surfaces and TEM. The covalent functionalization of graphene with silane reported herein will provide a simple method to fabricate UV-curable nanocomposite coatings with effectively enhanced thermal and mechanical properties. © 2013 The Authors.

Research Area(s)

  • Functionalized graphene, Photopolymerization, Thermal properties, Thiol-ene composites

Citation Format(s)

Enhanced thermal and mechanical properties of functionalized graphene/thiol-ene systems by photopolymerization technology. / Yu, Bin; Wang, Xin; Xing, Weiyi; Yang, Hongyu; Wang, Xiaofeng; Song, Lei; Hu, Yuan; Lo, Siuming.

In: Chemical Engineering Journal, Vol. 228, 05.07.2013, p. 318-326.

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

Download Statistics

No data available