Characterization of Silane-Treated and Untreated Natural Fibers from Stem of Leucas Aspera
In recent years, natural fiber and its composites have attracted researchers due to environmental awareness. It is essential to identify new cellulose fibers for the potential polymer reinforcement. The current study deals with the investigation of natural cellulosic fibers extracted from the stem o...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-12-01
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| Series: | Journal of Natural Fibers |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/15440478.2019.1710651 |
| _version_ | 1797680145478189056 |
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| author | R Vijay S. Manoharan S. Arjun A. Vinod D. Lenin Singaravelu |
| author_facet | R Vijay S. Manoharan S. Arjun A. Vinod D. Lenin Singaravelu |
| author_sort | R Vijay |
| collection | DOAJ |
| description | In recent years, natural fiber and its composites have attracted researchers due to environmental awareness. It is essential to identify new cellulose fibers for the potential polymer reinforcement. The current study deals with the investigation of natural cellulosic fibers extracted from the stem of Leucas aspera plants. The obtained fibers were treated with silane for effective use in composite applications. The physical, chemical, crystallinity, thermal stability, and morphological characteristics were analyzed for both untreated and silane-treated Leucas aspera fibers using chemical analysis, X-Ray diffraction test, fourier transform infrared spectroscopy, thermogravimetric analysis, and SEM images. The results showed that silane treatment removed excess lignin, wax and hemicellulose contents from Leucas aspera fibers and helped to increase its bonding characteristics with the matrix in composite applications leading to enhanced results compared to the untreated samples. There was a 2.1 times increase in crystalline index and better thermal stability with a char residue of 39%. To prove the applications' suitability, epoxy composites and friction composites in the form of brake pads were developed and analyzed for their mechanical performance as per ASTM and standard industrial practice. Increase in ultimate tensile strength was 56 MPa for silane-treated Leucas aspera fiber based epoxy composites while it was 43 MPa compared to its untreated samples. In brake pads, hardness was 93 for silane-treated LA fiber-based brake pads and 87 for the untreated. |
| first_indexed | 2024-03-11T23:25:26Z |
| format | Article |
| id | doaj.art-401d911fed0740c28f5a50594269d79d |
| institution | Directory Open Access Journal |
| issn | 1544-0478 1544-046X |
| language | English |
| last_indexed | 2024-03-11T23:25:26Z |
| publishDate | 2021-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Natural Fibers |
| spelling | doaj.art-401d911fed0740c28f5a50594269d79d2023-09-20T12:50:18ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2021-12-0118121957197310.1080/15440478.2019.17106511710651Characterization of Silane-Treated and Untreated Natural Fibers from Stem of Leucas AsperaR Vijay0S. Manoharan1S. Arjun2A. Vinod3D. Lenin Singaravelu4National Institute of TechnologySSM College of EngineeringNational Institute of TechnologySri Lakshmi Ammaal Engineering CollegeNational Institute of TechnologyIn recent years, natural fiber and its composites have attracted researchers due to environmental awareness. It is essential to identify new cellulose fibers for the potential polymer reinforcement. The current study deals with the investigation of natural cellulosic fibers extracted from the stem of Leucas aspera plants. The obtained fibers were treated with silane for effective use in composite applications. The physical, chemical, crystallinity, thermal stability, and morphological characteristics were analyzed for both untreated and silane-treated Leucas aspera fibers using chemical analysis, X-Ray diffraction test, fourier transform infrared spectroscopy, thermogravimetric analysis, and SEM images. The results showed that silane treatment removed excess lignin, wax and hemicellulose contents from Leucas aspera fibers and helped to increase its bonding characteristics with the matrix in composite applications leading to enhanced results compared to the untreated samples. There was a 2.1 times increase in crystalline index and better thermal stability with a char residue of 39%. To prove the applications' suitability, epoxy composites and friction composites in the form of brake pads were developed and analyzed for their mechanical performance as per ASTM and standard industrial practice. Increase in ultimate tensile strength was 56 MPa for silane-treated Leucas aspera fiber based epoxy composites while it was 43 MPa compared to its untreated samples. In brake pads, hardness was 93 for silane-treated LA fiber-based brake pads and 87 for the untreated.http://dx.doi.org/10.1080/15440478.2019.1710651leucas aspera fiberssilane treatmentbrake padsepoxy composites |
| spellingShingle | R Vijay S. Manoharan S. Arjun A. Vinod D. Lenin Singaravelu Characterization of Silane-Treated and Untreated Natural Fibers from Stem of Leucas Aspera Journal of Natural Fibers leucas aspera fibers silane treatment brake pads epoxy composites |
| title | Characterization of Silane-Treated and Untreated Natural Fibers from Stem of Leucas Aspera |
| title_full | Characterization of Silane-Treated and Untreated Natural Fibers from Stem of Leucas Aspera |
| title_fullStr | Characterization of Silane-Treated and Untreated Natural Fibers from Stem of Leucas Aspera |
| title_full_unstemmed | Characterization of Silane-Treated and Untreated Natural Fibers from Stem of Leucas Aspera |
| title_short | Characterization of Silane-Treated and Untreated Natural Fibers from Stem of Leucas Aspera |
| title_sort | characterization of silane treated and untreated natural fibers from stem of leucas aspera |
| topic | leucas aspera fibers silane treatment brake pads epoxy composites |
| url | http://dx.doi.org/10.1080/15440478.2019.1710651 |
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