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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/23885

Title: Fracture behaviour of bacterial cellulose hydrogel: Microstructural effect
Authors: Gao, Xing
Shi, Zhijun
Liu, Changqing
Yang, Guang
Silberschmidt, Vadim V.
Keywords: Fracture behaviour
Bacterial cellulose hydrogel
Microstructural effect
High water content
Porosity
Issue Date: 2016
Publisher: © The Authors. Published by Elsevier Ltd
Citation: GAO, X. ...et al., 2016. Fracture behaviour of bacterial cellulose hydrogel: Microstructural effect. Procedia Structural Integrity, 2, pp. 1237-1243.
Abstract: A growing interest in fibrous biomaterials, especially hydrogels, is due to a fact that they promise a good potential in biomedical applications thanks to their attractive biological properties and similar microstructure that mimics its in vivo environment. Since they are usually employed as a main load-bearing-component when introduced into body environment, a comprehensive understanding of their application-relevant mechanical behaviour, such as deformation and fracture, as well as structure-function relationships is essential. To date, deformation behaviour and mechanisms of hydrogels were well documented; still, a lack of understanding of their fracture behaviour, especially structure-function relationships, could complicate an evaluation of their applicability. Hence, this work carried out four types of test – uniaxial tension, single-notch, double-notch and central-notch fracture testing – to investigate fracture behaviour of fully-hydrated and freeze-dried bacterial cellulose (BC) hydrogel. Our results support a significant role of interstitial water – free and bonded water – played in fracture behaviour of the studied BC hydrogel.
Description: This paper is presented at the 21st European Conference on Fracture, ECF21, 20-24 June 2016, Catania, Italy. It is published by Elsevier under the Creative Commons Attribution -NonCommercial-NoDerivatives 4.0 Unported Licence (CC BY-NC-ND). Full details of this licence are available at: http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor: The authors would like to acknowledge the 7th European Community Framework Programme for financial support through a Marie Curie International Research Staff Exchange Scheme (IRSES) Project entitled “Micro-Multi-Material Manufacture to Enable Multifunctional Miniaturised Devices (M6)” (Grant No. PIRSES-GA-2010-269113). Additional support from China-European Union technology cooperation programme (Grant No. 1110) is also acknowledged.
Version: Published
DOI: 10.1016/j.prostr.2016.06.158
URI: https://dspace.lboro.ac.uk/2134/23885
Publisher Link: http://dx.doi.org/10.1016/j.prostr.2016.06.158
ISSN: 2452-3216
Appears in Collections:Conference Papers and Presentations (Mechanical, Electrical and Manufacturing Engineering)

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