Effect of hemp fibre surface treatment on the fibre-matrix interface and the influence of cellulose, hemicellulose and lignin contents on composite strength properties
Article
Article Title | Effect of hemp fibre surface treatment on the fibre-matrix interface and the influence of cellulose, hemicellulose and lignin contents on composite strength properties |
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ERA Journal ID | 44448 |
Article Category | Article |
Authors | Kabir, Mohammad Mazedul (Author), Alhaik, Mohammad Yousef (Author), Aldajah, Saud Hamad (Author), Lau, Kin Tak (Author), Wang, Hao (Author) and Islam, Md Mainul (Author) |
Journal Title | Advances in Materials Science and Engineering |
Journal Citation | 2021, pp. 1-17 |
Article Number | 9753779 |
Number of Pages | 17 |
Year | 2021 |
Publisher | Hindawi Publishing Corporation |
Place of Publication | United Kingdom |
ISSN | 1687-8434 |
1687-8442 | |
Digital Object Identifier (DOI) | https://doi.org/10.1155/2021/9753779 |
Web Address (URL) | https://www.hindawi.com/journals/amse/2021/9753779/ |
Abstract | Natural fibres have recently become an attractive alternative to synthetic fibres in the implementation of polymer composite structures. Inherent flaws within natural fibres in terms of their constituent contents (hemicellulose, cellulose, and lignin) reduce the compatibility of these fibres with polymer matrices. In this study, the effects of chemical treatments on hemp fibres and the resulted polyester matrix composite are investigated. The fibres were treated with alkali (0-10% NaOH), acetyl, and silane chemicals. Long unidirectional fibre composites were prepared by vacuum-assisted resin transfer moulding (VARTM) process. Thermal properties of the fibres were tested using differential scanning calorimetry (DSC) analyses. The mechanical properties of the composite samples were tested using compression and bending tests. Failure analysis of tested composites was undertaken through Optical Microscope (OM) and Scanning Electron Microscope (SEM). The results showed that the treatments of the 4% NaOH reduced interfacial bonding strength and decreased composite properties compared to untreated samples. At higher concentrations (6-10% NaOH), the mechanical properties of the composites increased as a result of greater interfacial bonding. Different trends were observed in the case of alkalised fibres that were further treated with acetyl and silane treatments. It was observed that the treated fibres effectively improved the bonding properties of composites and was in agreement with the micrographs. |
Keywords | Cellulose content; Chemical treatments; Composite strength; Effect of chemicals; Fiber surface treatments; Fiber/matrix interface; Lignin contents; Polyester matrix composites; Polymer matrices; Strength property |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Byline Affiliations | Higher Colleges of Technology, United Arab Emirates |
Swinburne University of Technology | |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6y42/effect-of-hemp-fibre-surface-treatment-on-the-fibre-matrix-interface-and-the-influence-of-cellulose-hemicellulose-and-lignin-contents-on-composite-strength-properties
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