title: Effect of cross linking of PVA/starch and reinforcement of modified barley husk on the properties of composite films.
abstract: Barley husk (BH) was graft copolymerized by palmitic acid. The crystalline behavior of BH decreased after grafting. Poly vinyl alcohol (PVA)/starch (St) blend film, urea formaldehyde cross linked PVA/St films and composite films containing natural BH, grafted BH were prepared separately. The effect of urea/starch ratio, content of BH and grafted BH on the mechanical properties, water uptake (%), and biodegradability of the composite films was observed. With increase in urea: starch ratio from 0 to 0.5 in the blend, tensile strength of cross linked film increased by 40.23% compared to the PVA/St film. However, in grafted BH composite film, the tensile strength increased by 72.4% than PVA/St film. The degradation rate of natural BH composite film was faster than PVA/St film. Various films were characterized by SEM, FT-IR and thermal analysis.
authors.affiliation: Department of Chemical Engineering, National Institute of Technology, Jalandhar 144 011, Punjab, India. Electronic address: aanchalm.15.phd@nitj.ac.in.
authors.forename: Aanchal
authors.initials: A
authors.lastname: Mittal
authors.affiliation: Department of Chemical Engineering, National Institute of Technology, Jalandhar 144 011, Punjab, India. Electronic address: gargs@nitj.ac.in.
authors.forename: Sangeeta
authors.initials: S
authors.lastname: Garg
authors.affiliation: Department of Chemical Engineering, National Institute of Technology, Jalandhar 144 011, Punjab, India.
authors.forename: Deepak
authors.initials: D
authors.lastname: Kohli
authors.affiliation: Department of Chemistry, National Institute of Technology, Jalandhar 144 011, Punjab, India.
authors.forename: Mithu
authors.initials: M
authors.lastname: Maiti
authors.affiliation: Department of Biotechnology, National Institute of Technology, Jalandhar 144 011, Punjab, India.
authors.forename: Asim Kumar
authors.initials: AK
authors.lastname: Jana
authors.affiliation: Department of Chemical Engineering, National Institute of Technology, Jalandhar 144 011, Punjab, India.
authors.forename: Shailendra
authors.initials: S
authors.lastname: Bajpai
mesh_terms: D005557:Formaldehyde / Q000737:chemistry; D001467:Hordeum / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry; D010539:Permeability; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D013213:Starch / Q000737:chemistry*; D013696:Temperature; D013718:Tensile Strength; D014508:Urea / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water; D005557:Formaldehyde; C028278:urea formaldehyde foam; D014508:Urea; D011142:Polyvinyl Alcohol; D013213:Starch; D010100:Oxygen
keywords: Barley husk; Composite film; Cross linked film; Mechanical properties; PVA/St films; Palmitic acid grafting