Gamma Radiation Induced Biodegradable Shellac Films Treated by Acrylic Monomer and Ethylene Glycol |
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| Authors: | Sushanta Ghoshal Mubarak A Khan Farhana Gul-E-Noor Ruhul A Khan |
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| Institution: | 1. Radiation and Polymer Chemistry Laboratory , Institute of Nuclear Science and Technology, Bangladesh Atomic Energy Commission , P.O. Box 3787, Dhaka, 1000, Bangladesh;2. Department of Applied Chemistry and Chemical Technology , University of Dhaka , Dhaka, 1000, Bangladesh;3. Radiation and Polymer Chemistry Laboratory , Institute of Nuclear Science and Technology, Bangladesh Atomic Energy Commission , P.O. Box 3787, Dhaka, 1000, Bangladesh;4. Department of Applied Chemistry and Chemical Technology , University of Dhaka , Dhaka, 1000, Bangladesh |
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| Abstract: | In this study the mechanical properties of shellac films, prepared by solution casting, were evaluated with varying amounts of Ethylene Glycol (EG) and 2-Ethyl-2-(hydroxymethyl)-1,3-propandiol-trimethacrylate (EHMPTMA). Mechanical properties such as tensile strength (TS) and elongation at break (Eb) of the raw shellac film were found to be 1.86 MPa and 4%, respectively. A series of formulations was prepared using shellac and varying percentages of EG and EHMPTMA in methanol. The films were prepared and irradiated under gamma (Co-60) radiation at different doses (50–500 krad). Grafting of EHMPTMA showed better results compared to raw shellac and EG treated films. Thermal properties, degradation tests in water and soil of the films were also evaluated. |
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| Keywords: | Thin film polymer shellac acrylic monomers gamma radiation |
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