Florinna Tan (2018) Preparation and characterization of nanocellulose thin film from brown seaweed (sargassum sp.) reinforced x-carbon nanotube/polyvynil alcohol composites. Masters thesis, Universiti Malaysia Sabah.
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Abstract
Nowadays, celluloses not only can regenerate from nature but also by synthesizing with aid of the recent technology advancement. In this study, nanocellulose was extracted from brown seaweed Sargassum sp. via organosolvent and sulphuric acid treatments at specific ratio. It was found, the nanocellulose obtained are mostly crystalline with crystal index 77.1 %. In advance, varied amount of nanocellulose was added into polyvinyl alcohol (PVA) matrix with present of functionalized carbon nanotubes (x-CNT) to form a thin layer film via casting method. The thin films had an average thickness of 0.1 cm and then undergo characterization assessments. The results reveal that the optimized nanocellulose/PVA/x-CNT thin film possessed electrical properties around 2.68 x 10-07 S/m and tensile strength of 13.7 MPa with 62 % of elongation. Hence, nanocellulose/PVA/x-CNT thin film could be potentially utilized as a conductive material in electrical application in the future.
| Item Type: | Thesis (Masters) |
|---|---|
| Keyword: | Polymer Nanocomposites, Seaweed, Sargassum sp. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials |
| Department: | FACULTY > Faculty of Science and Natural Resources |
| Depositing User: | DG MASNIAH AHMAD - |
| Date Deposited: | 28 Jun 2024 14:28 |
| Last Modified: | 28 Jun 2024 14:28 |
| URI: | https://eprints.ums.edu.my/id/eprint/38968 |
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