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A Study of Physicomechanical and Morphological Properties of Starch/Poly(vinylalcohol) Based Films |
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| Authors: | Dipa Ray Papri Roy Suparna Sengupta Siba Prasad Sengupta Amar K Mohanty Manjusri Misra |
| Institution: | (1) Department of Polymer Science &; Technology, University College of Science and Technology, University of Calcutta, 92, A.P.C Road, Kolkata, 700009, India;(2) Indian Association for the Cultivation of Science, 2 A &; B Raja S.C. Mallick Road, Calcutta, 700032, India;(3) Department of Plant Agriculture &; School of Engineering, Crop Science Building, University of Guelph, Guelph, ON, N1G 2W1, Canada;(4) School of Engineering and the Department of Plant Agriculture, Thornbrough Building, University of Guelph, Guelph, ON, N1G 2W1, Canada |
| Abstract: | Starch/Poly(vinylalcohol) blends in two different ratios (60:40 and 50:50) were prepared with glycerol as a plasticizer. Films were cast by a solution casting method. One set of films were filled with 10 wt% of unmodified bentonite clay and another set of films were crosslinked with epichlorohydrin in an alkaline medium. The prepared film samples were subjected to X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), mechanical characterization and scanning electron microscope (SEM). Significant changes in the tensile properties were observed depending on the different chemical constituents of the films. The presence of clay and crosslinking with epichlorohydrin were both found to have considerable effect on the morphology and mechanical property of the films. The SEM investigations, XRD analysis and FTIR studies revealed the interaction between the various chemical components of the films. |
| Keywords: | Starch Poly(vinylalcohol) Clay X-ray diffraction study Tensile properties Surface morphology |
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