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Time-dependent rheological behaviour of bacterial cellulose hydrogel

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journal contribution
posted on 2015-11-16, 15:21 authored by Xing Gao, Zhijun Shi, Piotr Kusmierczyk, Changqing Liu, Guang Yang, Igor Sevostianov, Vadim SilberschmidtVadim Silberschmidt
© 2015 Elsevier B.V. All rights reserved. This work focuses on time-dependent rheological behaviour of bacterial cellulose (BC) hydrogel. Due to its ideal biocompatibility, BC hydrogel could be employed in biomedical applications. Considering the complexity of loading conditions in human body environment, time-dependent behaviour under relevant conditions should be understood. BC specimens are produced by Gluconacetobacter xylinus ATCC 53582 at static-culture conditions. Time-dependent behaviour of specimens at several stress levels is experimentally determined by uniaxial tensile creep tests. We use fraction-exponential operators to model the rheological behaviour. Such a representation allows combination of good accuracy in analytical description of viscoelastic behaviour of real materials and simplicity in solving boundary value problems. The obtained material parameters allow us to identify time-dependent behaviour of BC hydrogel at high stress level with sufficient accuracy.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Materials Science and Engineering C

Volume

58

Pages

153 - 159

Citation

GAO, X. ... et al, 2016. Time-dependent rheological behaviour of bacterial cellulose hydrogel. Materials Science and Engineering C, 58, pp.153-159

Publisher

© 2015 Elsevier B.V.

Version

  • AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2016

Notes

This paper was accepted for publication in the journal Materials Science and Engineering C and the definitive published version is available at http://dx.doi.org/10.1016/j.msec.2015.08.019

ISSN

0928-4931

Language

  • en