Rheological Behaviors of Poly(Vinylidene Fluoride)/“Bud-Branched” Nanotubes Nanocomposites

Xue-Gang Tang School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Australia

Meng Hou School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Australia

Jin Zou School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Australia; Centre for Microscopy and Microanalysis, The University of Queensland, Brisbane, Australia

Rowan Truss School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Australia; School of Chemical Engineering, The University of Queensland, Brisbane, Australia

Zhonghua Zhu School of Chemical Engineering, The University of Queensland, Brisbane, Australia

Wei Yang College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu, Sichuan, China

Abstract

Bud-branched nanotubes, fabricated by growing metal particles on the surfaces of multiwall carbon nanotubes (MWCNTs), were used to prepare poly(vinylidene fluoride) (PVDF)-based nanocomposites. The melt viscoelastic behaviors of PVDF and its nanocomposites were characterized. The results showed that the introduction of both the MWCNTs and bud-branched nanotubes (MWCNTs-B) increased the storage modulus, loss modulus, and complex viscosity of the nanocomposites. However, the bud-branched nanotubes were more efficient to increase the elasticity than the MWCNTs that have relatively smooth surfaces. In particular, it was observed that the bud-branched nanotubes caused an increase of normal force and crossover modulus, while for MWCNTs, no variation in the normal force and a decrease of the crossover modulus were observed.

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Acknowledgments

Mr. Tang gratefully acknowledge the support from IPRS (Endeavour International Postgraduate Research Scholarship, Australia) and UQRS (University of Queensland Research Scholarship).

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Rheological Behaviors of Poly(Vinylidene Fluoride)/“Bud-Branched” Nanotubes Nanocomposites

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