Effect of mechanical strength on chitosan-pva blend through ionic crosslinking for food packaging application. (2016)

• Record Type: Journal Article
• Authors: Jahan, Firdos; Mathad, R.D.; Farheen, Shazia
• Is Part Of: Materials today. Volume 3:Number 9(2016)Part B
• Page Start: 3689
• Page End: 3696
• Publication Date: 2016
• Subjects: Chitosan-Polyvinyl Alcohol blend -- Potassium Nitrate -- Ionic crosslinking of films; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2016.11.014
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The present research aimed to enhance the mechanical strength and%Elongation of Chitosan(CS)-Polyvinyl Alcohol(PVA) blend through crosslinking with Potassium nitrate(KNO3 ).The blending and crystallinity of CS-PVA blend along with potassium nitrate as crosslinking agent was confirmed by Fourier Transform Infrared Spectroscopy (FTIR) and X-Ray Diffractometer (XRD) .The morphology of the film surface were investigated by Scanning Electron Microscopy (SEM). The mechanical behaviour of the crosslinked and uncrosslinked CS-PVA films was examined by ASTMD .The Tensile Strength (TS) of the CS-PVA blend was enhanced from 8Mpa to 31.9Mpa and% Elongation from 17.16% to 67% after crosslinking with KNO3 .Thus the results indicate that the crosslinked CS-PVA blend films have good mechanical strength than CS-PVA blend alone and hence promises to be a good material for the biomedical and active food packaging applications.