期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 117, 期 6, 页码 3601-3609出版社
WILEY
DOI: 10.1002/app.32254
关键词
microfibrillated cellulose; nanocomposites; amylopectin; barrier; biodegradable
资金
- EU
Two types of microfibrillated cellulose (MFC) were prepared using either a sulfite pulp containing a high amount of hemicellulose (MFC 1) or a carboxymethylated dissolving pulp (MFC 2). MFC gels were then combined with amylopectin solutions to produce solvent-cast MFC-reinforced amylopectin films. Tensile testing revealed that MFC 2-reinforced films exhibited a more ductile behavior and that MFC 1-reinforced films had higher modulus of elasticity (E-modulus) at MFC loadings of 50 wt % or higher. Pure MFC films had relatively low oxygen permeability values when data were compared with those for a variety of other polymer films. MFC 1 and MFC 2 films had similar opacity but differences in appearance which were attributed to the presence of some larger fibers and nanofiber agglomerates in MFC 2. Field emission scanning electron microscopy (FE-SEM) and atomic force microscopy (AFM) were used to illustrate the morphology of MFC nanofibers in pure films and in an amylopectin matrix. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 1:17: 3601-3609, 2010
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