Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15775
Title: Physical properties of silk fibroin/cellulose blend films regenerated from the hydrophilic ionic liquid
Authors: Shang, S 
Zhu, L
Fan, J
Keywords: Blend film
Cellulose
Ionic liquid
Silk fibroin
Issue Date: 2011
Publisher: Elsevier Sci Ltd
Source: Carbohydrate polymers, 2011, v. 86, no. 2, p. 462-468 How to cite?
Journal: Carbohydrate Polymers 
Abstract: In this work, silk fibroin/cellulose (SF/CE) blend films were regenerated from hydrophilic ionic liquid, 1-butyl-3-methylimidazolium chloride (BmimCl). The structure of the blend films was characterised by Fourier transform infrared spectroscopy (FTIR). The thermal and mechanical properties and the surface morphology of the blend films were also investigated. In addition, moisture content, swelling index, total water absorption and film weight loss were measured. The results indicate that with the introduction of CE, the interactions between SF and CE in the blend films induced the conformation transition of SF from random coil form or silk I to β-sheet structure. At the same time, the physical properties of the blend films were improved. When the ratio of SF to CE is 25:75, the stronger interactions in the matrices contribute to the higher tensile strength, higher thermal stability and higher water stability. However, the blend film with half CE illustrates higher elongation at break, a more homogeneous surface and higher miscibility.
URI: http://hdl.handle.net/10397/15775
DOI: 10.1016/j.carbpol.2011.04.064
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