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Physical and mechanical properties of hybrid montmorillonite/zinc oxide reinforced carboxymethyl cellulose nanocomposites.
Int J Biol Macromol. 2018 Mar; 108:863-873.IJ

Abstract

In this research, a novel carboxymethyl cellulose (CMC)-based nanocomposite films containing sodium montmorillonite (MMT) (5%wt) and zinc oxide (ZnO) (1, 2, 3 and 4%wt) nanoparticles (NPs) were fabricated via casting method. The results revealed that addition of NPs decreased water vapor permeability of the films by about 53%, while moisture content, density and glass transition temperature increased. The nanomaterials enhanced resistance of the nanocomposites against tensile stress at the expense of elongation at break. Nano-ZnO was very effective than nanoclay in UV-light blocking (99% vs. 60%) associated with sacrificing the films transparency. Formation of hydrogen bonds between the hydroxyl groups of CMC and MMT was evidenced by FTIR spectroscopy. According to the XRD analysis, clay nanolayers formed an exfoliated structure in the nanocomposites, whereas ZnO NPs raised crystallinity. SEM micrographs showed well-dispersed MMT and ZnO NPs through the films surface. Antibacterial test showed that vulnerability of Gram-positive S. aureus toward ZnO NPs was more than that of Gram-negative E. Coli. In conclusion, simultaneous incorporation of MMT and ZnO NPs improved the functional characteristics of CMC film and extended the potential for food packaging applications.

Authors+Show Affiliations

Department of Food Science and Technology, Faculty of Agriculture and Natural resources, University of Mohaghegh Ardabili, Ardabil, Iran. Electronic address: Y_zahedi@uma.ac.ir.Department of Food Science and Technology, Faculty of Agriculture and Natural resources, University of Mohaghegh Ardabili, Ardabil, Iran. Electronic address: bahram1356@yahoo.com.Department of Chemical Engineering, Faculty of Engineering, University of Bonab, Bonab, Iran. Electronic address: a_yousefi@bonabu.ac.ir.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29102792

Citation

Zahedi, Younes, et al. "Physical and Mechanical Properties of Hybrid Montmorillonite/zinc Oxide Reinforced Carboxymethyl Cellulose Nanocomposites." International Journal of Biological Macromolecules, vol. 108, 2018, pp. 863-873.
Zahedi Y, Fathi-Achachlouei B, Yousefi AR. Physical and mechanical properties of hybrid montmorillonite/zinc oxide reinforced carboxymethyl cellulose nanocomposites. Int J Biol Macromol. 2018;108:863-873.
Zahedi, Y., Fathi-Achachlouei, B., & Yousefi, A. R. (2018). Physical and mechanical properties of hybrid montmorillonite/zinc oxide reinforced carboxymethyl cellulose nanocomposites. International Journal of Biological Macromolecules, 108, 863-873. https://doi.org/10.1016/j.ijbiomac.2017.10.185
Zahedi Y, Fathi-Achachlouei B, Yousefi AR. Physical and Mechanical Properties of Hybrid Montmorillonite/zinc Oxide Reinforced Carboxymethyl Cellulose Nanocomposites. Int J Biol Macromol. 2018;108:863-873. PubMed PMID: 29102792.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Physical and mechanical properties of hybrid montmorillonite/zinc oxide reinforced carboxymethyl cellulose nanocomposites. AU - Zahedi,Younes, AU - Fathi-Achachlouei,Bahram, AU - Yousefi,Ali Reza, Y1 - 2017/11/11/ PY - 2017/06/29/received PY - 2017/10/19/revised PY - 2017/10/31/accepted PY - 2017/11/6/pubmed PY - 2018/8/4/medline PY - 2017/11/6/entrez KW - Biodegradability KW - Nanocomposite KW - Packaging film KW - Reinforcement KW - Ultra violet shielding SP - 863 EP - 873 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 108 N2 - In this research, a novel carboxymethyl cellulose (CMC)-based nanocomposite films containing sodium montmorillonite (MMT) (5%wt) and zinc oxide (ZnO) (1, 2, 3 and 4%wt) nanoparticles (NPs) were fabricated via casting method. The results revealed that addition of NPs decreased water vapor permeability of the films by about 53%, while moisture content, density and glass transition temperature increased. The nanomaterials enhanced resistance of the nanocomposites against tensile stress at the expense of elongation at break. Nano-ZnO was very effective than nanoclay in UV-light blocking (99% vs. 60%) associated with sacrificing the films transparency. Formation of hydrogen bonds between the hydroxyl groups of CMC and MMT was evidenced by FTIR spectroscopy. According to the XRD analysis, clay nanolayers formed an exfoliated structure in the nanocomposites, whereas ZnO NPs raised crystallinity. SEM micrographs showed well-dispersed MMT and ZnO NPs through the films surface. Antibacterial test showed that vulnerability of Gram-positive S. aureus toward ZnO NPs was more than that of Gram-negative E. Coli. In conclusion, simultaneous incorporation of MMT and ZnO NPs improved the functional characteristics of CMC film and extended the potential for food packaging applications. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/29102792/Physical_and_mechanical_properties_of_hybrid_montmorillonite/zinc_oxide_reinforced_carboxymethyl_cellulose_nanocomposites_ DB - PRIME DP - Unbound Medicine ER -