Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications
To develop bio-packaging materials, nanocomposite films of cellulose acetate reinforced with titanium dioxide and zinc oxide nanoparticles were prepared, by the casting method at different weight ratios of ZnO nanoparticles (1.5, 2, and 2.5) wt% and a constant weight ratio of 2 wt% TiO<sub>2&l...
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| Format: | Article |
| Language: | English |
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University of Technology, Baghdad
2022-09-01
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| Series: | Journal of Applied Sciences and Nanotechnology |
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| Online Access: | https://jasn.uotechnology.edu.iq/article_19396_60d03f6dca818c0433edf928feadb6f9.pdf |
| _version_ | 1828410517303066624 |
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| author | Hajer Ali Nahida Hameed |
| author_facet | Hajer Ali Nahida Hameed |
| author_sort | Hajer Ali |
| collection | DOAJ |
| description | To develop bio-packaging materials, nanocomposite films of cellulose acetate reinforced with titanium dioxide and zinc oxide nanoparticles were prepared, by the casting method at different weight ratios of ZnO nanoparticles (1.5, 2, and 2.5) wt% and a constant weight ratio of 2 wt% TiO<sub>2</sub>. ZnO and TiO<sub>2 </sub>nanoparticles were tested using scanning electron microscopy (SEM). The mechanical properties (tensile strength and elongation) were improved at a fixed level of Cellulose Acetate+ 2% TiO<sub>2</sub>+1.5wt% ZnO loading. Beyond that level of loading, they decreased. The tensile strength was decreased due to some degrees of agglomeration of filler particles above a critical content. Fourier-Transform Infrared Spectroscopy (FTIR) was conducted to reveal the microstructures and chemical composition of as-prepared composite films. The wettability of the films was also determined by the sessile drop method. An increase in contact angle was also observed by the addition of ZnO content from 70.6° to 77.1° compared to pure Cellulose Acetate, which indicated a value of 61.3°. Antibacterial activity against Escherichia coli and Staphylococcus aureus was enhanced after incorporation of ZnO-TiO<sub>2</sub> compared with pure CA. The enhanced wettability and antibacterial activity of the prepared films suggest that they could be used for packaging applications. |
| first_indexed | 2024-12-10T12:12:34Z |
| format | Article |
| id | doaj.art-4a9b1863bb4243fcbd10b1ac306f661d |
| institution | Directory Open Access Journal |
| issn | 2788-6867 |
| language | English |
| last_indexed | 2024-12-10T12:12:34Z |
| publishDate | 2022-09-01 |
| publisher | University of Technology, Baghdad |
| record_format | Article |
| series | Journal of Applied Sciences and Nanotechnology |
| spelling | doaj.art-4a9b1863bb4243fcbd10b1ac306f661d2022-12-22T01:49:18ZengUniversity of Technology, BaghdadJournal of Applied Sciences and Nanotechnology2788-68672022-09-012311512510.53293/jasn.2022.4542.112219396Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging ApplicationsHajer Ali0Nahida Hameed1Mesopotamian State Company of Seeds, Ministry of Agriculture – IraqMaterials Science Division, Department of Applied Sciences, University of Technology – IraqTo develop bio-packaging materials, nanocomposite films of cellulose acetate reinforced with titanium dioxide and zinc oxide nanoparticles were prepared, by the casting method at different weight ratios of ZnO nanoparticles (1.5, 2, and 2.5) wt% and a constant weight ratio of 2 wt% TiO<sub>2</sub>. ZnO and TiO<sub>2 </sub>nanoparticles were tested using scanning electron microscopy (SEM). The mechanical properties (tensile strength and elongation) were improved at a fixed level of Cellulose Acetate+ 2% TiO<sub>2</sub>+1.5wt% ZnO loading. Beyond that level of loading, they decreased. The tensile strength was decreased due to some degrees of agglomeration of filler particles above a critical content. Fourier-Transform Infrared Spectroscopy (FTIR) was conducted to reveal the microstructures and chemical composition of as-prepared composite films. The wettability of the films was also determined by the sessile drop method. An increase in contact angle was also observed by the addition of ZnO content from 70.6° to 77.1° compared to pure Cellulose Acetate, which indicated a value of 61.3°. Antibacterial activity against Escherichia coli and Staphylococcus aureus was enhanced after incorporation of ZnO-TiO<sub>2</sub> compared with pure CA. The enhanced wettability and antibacterial activity of the prepared films suggest that they could be used for packaging applications.https://jasn.uotechnology.edu.iq/article_19396_60d03f6dca818c0433edf928feadb6f9.pdfantibacterial activitybiodegradablecontact anglemechanical properties |
| spellingShingle | Hajer Ali Nahida Hameed Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications Journal of Applied Sciences and Nanotechnology antibacterial activity biodegradable contact angle mechanical properties |
| title | Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications |
| title_full | Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications |
| title_fullStr | Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications |
| title_full_unstemmed | Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications |
| title_short | Preparation of Cellulose Acetate Nanocomposite Films Based on TiO2-ZnO Nanoparticles Modification as Food Packaging Applications |
| title_sort | preparation of cellulose acetate nanocomposite films based on tio2 zno nanoparticles modification as food packaging applications |
| topic | antibacterial activity biodegradable contact angle mechanical properties |
| url | https://jasn.uotechnology.edu.iq/article_19396_60d03f6dca818c0433edf928feadb6f9.pdf |
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