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The preparation and characterization of nanocomposite film reinforced by modified cellulose nanocrystals.
Int J Biol Macromol. 2019 Jul 01; 132:1155-1162.IJ

Abstract

In the present study, in order to improve the properties of nanostarch-based nanocomposite film for food packaging, a type of nanocomposite film based on corn nanostarch (CNS) as the matrix and modified cellulose nanocrystals (modified-CNCs) as the reinforcement was prepared using a solution casting method. The cellulose nanocrystals (CNCs) were modified by a two-step method in which they were initially crosslinked with citric acid, and subsequently amidated with chitosan. Then, a type of CNS/modified-CNCs nanocomposite film with different content levels of modified-CNC were prepared and characterized using Fourier Transform Infrared spectroscopy (FTIR); X-ray Photoelectron Spectroscopy (XPS); X-Ray Diffraction (XRD); Differential Scanning Calorimetry (DSC); and Scanning Electron Microscopy (SEM). It was observed that when compared with the pure CNS film, the 8.0 wt% modified-CNCs loaded nanostarch-based nanocomposite film had displayed a 230.0% increase in tensile strength. And the moisture absorption ability had decreased by 25.6%; water vapor permeability had decreased by 87.4%; and the water contact angle value had increased by 18.1%. Also the results of this experimental study had revealed that the CNS/modified-CNCs nanocomposite film had displayed better antimicrobial activities against E. coli and S. aureus bacteria when compared with the pure CNS film.

Authors+Show Affiliations

School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114,China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640,China. Electronic address: chenqijie@csust.edu.cn.School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114,China.School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114,China.School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114,China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30981769

Citation

Chen, Qi-Jie, et al. "The Preparation and Characterization of Nanocomposite Film Reinforced By Modified Cellulose Nanocrystals." International Journal of Biological Macromolecules, vol. 132, 2019, pp. 1155-1162.
Chen QJ, Zhou LL, Zou JQ, et al. The preparation and characterization of nanocomposite film reinforced by modified cellulose nanocrystals. Int J Biol Macromol. 2019;132:1155-1162.
Chen, Q. J., Zhou, L. L., Zou, J. Q., & Gao, X. (2019). The preparation and characterization of nanocomposite film reinforced by modified cellulose nanocrystals. International Journal of Biological Macromolecules, 132, 1155-1162. https://doi.org/10.1016/j.ijbiomac.2019.04.063
Chen QJ, et al. The Preparation and Characterization of Nanocomposite Film Reinforced By Modified Cellulose Nanocrystals. Int J Biol Macromol. 2019 Jul 1;132:1155-1162. PubMed PMID: 30981769.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The preparation and characterization of nanocomposite film reinforced by modified cellulose nanocrystals. AU - Chen,Qi-Jie, AU - Zhou,Li-Ling, AU - Zou,Jia-Qi, AU - Gao,Xin, Y1 - 2019/04/11/ PY - 2019/01/27/received PY - 2019/04/02/revised PY - 2019/04/10/accepted PY - 2019/4/15/pubmed PY - 2019/11/5/medline PY - 2019/4/15/entrez KW - Cellulose nanocrystals KW - Chemical modifications KW - Corn nanostarch KW - Nanocomposite film SP - 1155 EP - 1162 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 132 N2 - In the present study, in order to improve the properties of nanostarch-based nanocomposite film for food packaging, a type of nanocomposite film based on corn nanostarch (CNS) as the matrix and modified cellulose nanocrystals (modified-CNCs) as the reinforcement was prepared using a solution casting method. The cellulose nanocrystals (CNCs) were modified by a two-step method in which they were initially crosslinked with citric acid, and subsequently amidated with chitosan. Then, a type of CNS/modified-CNCs nanocomposite film with different content levels of modified-CNC were prepared and characterized using Fourier Transform Infrared spectroscopy (FTIR); X-ray Photoelectron Spectroscopy (XPS); X-Ray Diffraction (XRD); Differential Scanning Calorimetry (DSC); and Scanning Electron Microscopy (SEM). It was observed that when compared with the pure CNS film, the 8.0 wt% modified-CNCs loaded nanostarch-based nanocomposite film had displayed a 230.0% increase in tensile strength. And the moisture absorption ability had decreased by 25.6%; water vapor permeability had decreased by 87.4%; and the water contact angle value had increased by 18.1%. Also the results of this experimental study had revealed that the CNS/modified-CNCs nanocomposite film had displayed better antimicrobial activities against E. coli and S. aureus bacteria when compared with the pure CNS film. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/30981769/The_preparation_and_characterization_of_nanocomposite_film_reinforced_by_modified_cellulose_nanocrystals_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0141-8130(19)30669-5 DB - PRIME DP - Unbound Medicine ER -