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Physical Properties and Morphology of Films Prepared from Microfibrillated Cellulose and Microfibrillated Cellulose in Combination with Amylopectin
- Plackett, David (author)
-
- Anturi, Harvey (author)
- KTH,Biokompositer
-
- Hedenqvist, Mikael S. (author)
- KTH,Polymera material
- show more...
- Ankerfors, Mikael (author)
- Gällstedt, Mikael (author)
- Lindström, Tom (author)
- Siró, Istvan (author)
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- (creator_code:org_t)
- Wiley, 2010
- 2010
- English.
- In: Journal of Applied Polymer Science. - : Wiley. - 0021-8995 .- 1097-4628. ; 117:6, s. 3601-3609
- Journal article (peer-reviewed)
Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Keyword
- microfibrillated cellulose
- nanocomposites
- amylopectin
- barrier
- biodegradable
- Polymer chemistry
- Polymerkemi
Publication and Content Type
- ref (subject category)
- art (subject category)
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