Modification of mechanical and thermal property of chitosanastarch blend films

• Published in: Radiation physics and chemistry (Oxford, England : 1993) Vol. 81; no. 10; pp. 1659 - 1668
• Main Authors: Tuhin, Mohammad O, Rahman, Nazia, Haque, ME, Khan, Ruhul A, Dafader, N C, Islam, Rafiqul, Nurnabi, Mohammad, Tonny, Wafa
• Format: Journal Article
• Language: English
• Published: 01-10-2012
• Subjects: Blends; Elongation; Glycerols; Mechanical analysis; Monomers; Mustard; Scanning electron microscopy; Thermal properties
• ISSN: 0969-806X

Chitosanastarch blend films (thickness 0.2 mm) of different composition were prepared by casting and their mechanical properties were studied. To improve the properties of chitosanastarch films, glycerol and mustard oil of different composition were used. Chitosanastarch films, incorporated with glycerol and mustard oil, were further modified with monomer 2-hydroxyethyl methacrylate (HEMA) using gamma radiation. The modified films showed improvement in both tensile strength and elongation at break than the pure chitosanastarch films. Water uptake of the films reduced significantly than the pure chitosanastarch film. Thermo gravimetric analysis (TGA) and dynamic mechanical analysis (DMA) showed that the modified films experience less thermal degradation than the pure films. Scanning electron microscopy (SEM) and FTIR were used to investigate the morphology and molecular interaction of the blend film, respectively.