US EPA

4453424 

Journal Article 

Effect of cross linking of PVA/starch and reinforcement of modified barley husk on the properties of composite films 

Mittal, A; Garg, S; Kohli, D; Maiti, M; Jana, AK; Bajpai, S 

2016 

Yes 

Carbohydrate Polymers
ISSN: 0144-8617
EISSN: 1879-1344 

151 

926-938 

English 

27474641 

10.1016/j.carbpol.2016.06.037 

WOS:000380943900105 

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84976440484&doi=10.1016%2fj.carbpol.2016.06.037&partnerID=40&md5=7bce943eeaa72774fe1cf27d3264f722
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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. 

Barley husk; Composite film; Cross linked film; Mechanical properties; Palmitic acid grafting; PVA/St films; article; biodegradability; composite materials; crosslinking; films (materials); Fourier transform infrared spectroscopy; palmitic acid; polyvinyl alcohol; scanning electron microscopy; tensile strength; thermal analysis; urea formaldehyde