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當(dāng)前位置:> 首頁 > 論文著作 > 正文
Time-dependent rheological behaviour of bacterial cellulose hydrogel
作者:Xing Gao a, Zhijun Shi b, Piotr Ku?mierczyk c, Changqing Liu a, Guang Yang b, Igor Sevostianov d, Va
關(guān)鍵字:Bacterial cellulose hydrogel ,Rheology ,Creep test Fraction-exponential operators, Time-dependent behaviour
論文來源:期刊
具體來源:Materials Science and Engineering C
發(fā)表時間:2016年

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.


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