Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly (vinyl alcohol)/chitosan blend films: fabrication, characterization and properties
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...
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| 格式: | 文件 |
| 语言: | English |
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MDPI AG
2014
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| 在线阅读: | http://psasir.upm.edu.my/id/eprint/36719/1/Cellulose%20nanocrystals.pdf |
| _version_ | 1825948896707215360 |
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| author | Azizi, Susan Ahmad @ Ayob, Mansor Ibrahim, Nor Azowa Hussein, Mohd Zobir Namvar, Farideh |
| author_facet | Azizi, Susan Ahmad @ Ayob, Mansor Ibrahim, Nor Azowa Hussein, Mohd Zobir Namvar, Farideh |
| author_sort | Azizi, Susan |
| collection | UPM |
| description | 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. |
| first_indexed | 2024-03-06T08:36:10Z |
| format | Article |
| id | upm.eprints-36719 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:36:10Z |
| publishDate | 2014 |
| publisher | MDPI AG |
| record_format | dspace |
| spelling | upm.eprints-367192015-08-26T07:30:58Z http://psasir.upm.edu.my/id/eprint/36719/ Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly (vinyl alcohol)/chitosan blend films: fabrication, characterization and properties Azizi, Susan Ahmad @ Ayob, Mansor Ibrahim, Nor Azowa Hussein, Mohd Zobir Namvar, Farideh 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. MDPI AG 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36719/1/Cellulose%20nanocrystals.pdf Azizi, Susan and Ahmad @ Ayob, Mansor and Ibrahim, Nor Azowa and Hussein, Mohd Zobir and Namvar, Farideh (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). pp. 11040-11053. ISSN 1422-0067 http://www.mdpi.com/1422-0067/15/6/11040 10.3390/ijms150611040 |
| spellingShingle | Azizi, Susan Ahmad @ Ayob, Mansor Ibrahim, Nor Azowa Hussein, Mohd Zobir Namvar, Farideh Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly (vinyl alcohol)/chitosan blend films: fabrication, characterization and properties |
| title | Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly (vinyl alcohol)/chitosan blend films: fabrication, characterization and properties |
| title_full | Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly (vinyl alcohol)/chitosan blend films: fabrication, characterization and properties |
| title_fullStr | Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly (vinyl alcohol)/chitosan blend films: fabrication, characterization and properties |
| title_full_unstemmed | Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly (vinyl alcohol)/chitosan blend films: fabrication, characterization and properties |
| title_short | Cellulose nanocrystals/ZnO as a bifunctional reinforcing nanocomposite for poly (vinyl alcohol)/chitosan blend films: fabrication, characterization and properties |
| title_sort | cellulose nanocrystals zno as a bifunctional reinforcing nanocomposite for poly vinyl alcohol chitosan blend films fabrication characterization and properties |
| url | http://psasir.upm.edu.my/id/eprint/36719/1/Cellulose%20nanocrystals.pdf |
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