Reducing water sensitivity of alginate bio-nanocomposite film using cellulose nanoparticles
Journal article, 2013

A bio-based nanocomposite was developed by incorporation of cellulose nanoparticles (CN) obtained from sulfuric acid hydrolysis into alginate biopolymer using solution casting method. The effect of CN loading content (1, 3, 5 and 10 wt%) on microstructural, physical, mechanical and optical properties of the nanocomposites were characterized. The results showed that water solubility and water vapor permeability of the nanocomposites decreased by about 40% and 17%, respectively, upon increasing the CN content to 10%. In addition, the crystalline structure of the CN increased surface hydrophobicity of the alginate film by about 98%. The tensile strength value of the composite films increased from 18.03 to 22.4 MPa with increasing NC content from 0 to 5%; but, it decreased with further increase of the filler content. Nevertheless, film transparency decreased with CN incorporation, especially in high level (10%), which suggested the occurrence of partial agglomeration of the fillers at 10% that coincided with microstructural and mechanical results.

Author

Mehdi Abdollahi

Food and Nutrition Science

Mehdi Albofetileh

Tarbiat Modares University

Rabi Behrooz

Tarbiat Modares University

Masoud Rezaei

Tarbiat Modares University

Reza Miraki

Tarbiat Modares University

International Journal of Biological Macromolecules

0141-8130 (ISSN)

Vol. 54 166-173

Subject Categories

Biochemistry and Molecular Biology

Materials Chemistry

Cardiac and Cardiovascular Systems

DOI

10.1016/j.ijbiomac.2012.12.016

More information

Latest update

11/21/2019