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Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly(vinyl alcohol)/chitosan blend films: fabrication, characterization and properties.
Int J Mol Sci. 2014 Jun 18; 15(6):11040-53.IJ

Abstract

In this study, cellulose nanocrystals/zinc oxide (CNCs/ZnO) nanocomposites were dispersed as bifunctional nano-sized fillers into poly(vinyl alcohol) (PVA) and chitosan (Cs) blend by a solvent casting method to prepare PVA/Cs/CNCs/ZnO bio-nanocomposites films. The morphology, thermal, mechanical and UV-vis absorption properties, as well antimicrobial effects of the bio-nanocomposite films were investigated. It demonstrated that CNCs/ZnO were compatible with PVA/Cs and dispersed homogeneously in the polymer blend matrix. CNCs/ZnO improved tensile strength and modulus of PVA/Cs significantly. Tensile strength and modulus of bio-nanocomposite films increased from 55.0 to 153.2 MPa and from 395 to 932 MPa, respectively with increasing nano-sized filler amount from 0 to 5.0 wt %. The thermal stability of PVA/Cs was also enhanced at 1.0 wt % CNCs/ZnO loading. UV light can be efficiently absorbed by incorporating ZnO nanoparticles into a PVA/Cs matrix, signifying that these bio-nanocomposite films show good UV-shielding effects. Moreover, the biocomposites films showed antibacterial activity toward the bacterial species Salmonella choleraesuis and Staphylococcus aureus. The improved physical properties obtained by incorporating CNCs/ZnO can be useful in variety uses.

Authors+Show Affiliations

Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. azisusan@gmail.com.Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. mansorahmad@upm.edu.my.Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. norazowa@science.upm.edu.my.Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. mzobir@science.upm.edu.my.Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. farideh.namvar@gmail.com.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24945313

Citation

Azizi, Susan, et al. "Cellulose nanocrystals/ZnO as a Bifunctional Reinforcing Nanocomposite for Poly(vinyl Alcohol)/chitosan Blend Films: Fabrication, Characterization and Properties." International Journal of Molecular Sciences, vol. 15, no. 6, 2014, pp. 11040-53.
Azizi S, Ahmad MB, Ibrahim NA, et al. Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly(vinyl alcohol)/chitosan blend films: fabrication, characterization and properties. Int J Mol Sci. 2014;15(6):11040-53.
Azizi, S., Ahmad, M. B., Ibrahim, N. A., Hussein, M. Z., & Namvar, F. (2014). Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly(vinyl alcohol)/chitosan blend films: fabrication, characterization and properties. International Journal of Molecular Sciences, 15(6), 11040-53. https://doi.org/10.3390/ijms150611040
Azizi S, et al. Cellulose nanocrystals/ZnO as a Bifunctional Reinforcing Nanocomposite for Poly(vinyl Alcohol)/chitosan Blend Films: Fabrication, Characterization and Properties. Int J Mol Sci. 2014 Jun 18;15(6):11040-53. PubMed PMID: 24945313.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly(vinyl alcohol)/chitosan blend films: fabrication, characterization and properties. AU - Azizi,Susan, AU - Ahmad,Mansor B, AU - Ibrahim,Nor Azowa, AU - Hussein,Mohd Zobir, AU - Namvar,Farideh, Y1 - 2014/06/18/ PY - 2014/04/04/received PY - 2014/05/14/revised PY - 2014/05/26/accepted PY - 2014/6/20/entrez PY - 2014/6/20/pubmed PY - 2015/1/28/medline SP - 11040 EP - 53 JF - International journal of molecular sciences JO - Int J Mol Sci VL - 15 IS - 6 N2 - In this study, cellulose nanocrystals/zinc oxide (CNCs/ZnO) nanocomposites were dispersed as bifunctional nano-sized fillers into poly(vinyl alcohol) (PVA) and chitosan (Cs) blend by a solvent casting method to prepare PVA/Cs/CNCs/ZnO bio-nanocomposites films. The morphology, thermal, mechanical and UV-vis absorption properties, as well antimicrobial effects of the bio-nanocomposite films were investigated. It demonstrated that CNCs/ZnO were compatible with PVA/Cs and dispersed homogeneously in the polymer blend matrix. CNCs/ZnO improved tensile strength and modulus of PVA/Cs significantly. Tensile strength and modulus of bio-nanocomposite films increased from 55.0 to 153.2 MPa and from 395 to 932 MPa, respectively with increasing nano-sized filler amount from 0 to 5.0 wt %. The thermal stability of PVA/Cs was also enhanced at 1.0 wt % CNCs/ZnO loading. UV light can be efficiently absorbed by incorporating ZnO nanoparticles into a PVA/Cs matrix, signifying that these bio-nanocomposite films show good UV-shielding effects. Moreover, the biocomposites films showed antibacterial activity toward the bacterial species Salmonella choleraesuis and Staphylococcus aureus. The improved physical properties obtained by incorporating CNCs/ZnO can be useful in variety uses. SN - 1422-0067 UR - https://www.unboundmedicine.com/medline/citation/24945313/Cellulose_nanocrystals/ZnO_as_a_bifunctional_reinforcing_nanocomposite_for_poly_vinyl_alcohol_/chitosan_blend_films:_fabrication_characterization_and_properties_ DB - PRIME DP - Unbound Medicine ER -