| Literature DB >> 27474641 |
Aanchal Mittal1, Sangeeta Garg2, Deepak Kohli3, Mithu Maiti4, Asim Kumar Jana5, Shailendra Bajpai3.
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.Entities:
Keywords: Barley husk; Composite film; Cross linked film; Mechanical properties; PVA/St films; Palmitic acid grafting
Mesh：
Substances：
Year: 2016 PMID： 27474641 DOI： 10.1016/j.carbpol.2016.06.037
Source DB: PubMed Journal: Carbohydr Polym ISSN： 0144-8617 Impact factor: 9.381