Journal of Adhesion Science and Technology, Vol.27, No.24, 2653-2665, 2013
A comparative study of gamma and ultraviolet radiation on gelatin film with 2-ethylhexyl acrylate
Gelatin films were prepared from gelatin granules in an aqueous medium by casting. Tensile strength (TS) and elongation at break (Eb%) of the films were found to be 29.2MPa and 4.9%, respectively. Gelatin films were irradiated under gamma and UV radiation with different doses. Gamma treated gelatin films showed higher TS and Eb% over untreated ones, and even higher than that of the UV treated films. A series of gelatin solutions (formulations) was prepared by blending varying percentages (2-10% by wt) of 2-ethylhexyl acrylate (EHA) and then the films were prepared. Some EHA-blended gelatin films were irradiated under gamma radiation at various doses (50-500krad) and other films were cured under UV radiation at different intensities (10-30 UV passes). EHA-blended+gamma treated gelatin films showed the highest mechanical properties than that of the EHA-blended+UV treated films. The degradation properties present in the soil were determined for the pure and treated films. It was observed that EHA-blended+gamma treated gelatin film degrades more than that of the EHA-blended+UV treated films.