AUTHOR=Xu Sheng , Jiang Mingjun , Lu Qiuhao , Gao Siyuan , Feng Jiao , Wang Xin , He Xun , Chen Kequan , Li Yan , Ouyang Pingkai 

TITLE=Properties of Polyvinyl Alcohol Films Composited With Hemicellulose and Nanocellulose Extracted From Artemisia selengensis Straw

JOURNAL=Frontiers in Bioengineering and Biotechnology

VOLUME=Volume 8 - 2020

YEAR=2020

URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2020.00980

DOI=10.3389/fbioe.2020.00980

ISSN=2296-4185

ABSTRACT=Artemisia selengensis straw is an agricultural residue with great potential as a resource because it is rich in lignocellulose. In this study, A. selengensis straw has been used as a source of hemicelluloses (ASH) and cellulose nanocrystals (ASCNC) for the elaboration of biodegradable films. The different contents of ASCNC were used as an additive to improve composite films with ASH and polyvinyl alcohol (PVA). Various mechanical and hydrophobic properties of the films were analyzed. The composite films enhanced by ASCNC exhibited greater strength and were more effective as a barrier to water vapor when compared to that of the control ASH/PVA film. The tensile strength of the composite film was increased 80.1% to 36.21 MPa with the ASCNC loading exceeds 9%, and the water vapor transmission rate decreased 15.45% by added 12% ASCNC. Furthermore, the ASCNC-enhanced composite film reduced a greater amount of light transmission than the control film.