The Influence of Fiber Treatment on the Morphology, Water Absorption Capacity and Mechanical Behavior of Curauá Fibers
The use of vegetable fibers in the modern engineering industry represents a worldwide need for sustainable low-cost materials with desirable mechanical characteristics, such as high strength, modulus of elasticity and strain capacity. In order to be used as a reinforcement in composite systems, the...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2022-02-01
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| Series: | Journal of Natural Fibers |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/15440478.2020.1758863 |
| _version_ | 1797680175032303616 |
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| author | Wena de N. Do R. Martel I. P. Salgado F. A. Silva |
| author_facet | Wena de N. Do R. Martel I. P. Salgado F. A. Silva |
| author_sort | Wena de N. Do R. Martel |
| collection | DOAJ |
| description | The use of vegetable fibers in the modern engineering industry represents a worldwide need for sustainable low-cost materials with desirable mechanical characteristics, such as high strength, modulus of elasticity and strain capacity. In order to be used as a reinforcement in composite systems, the Curauá fibers' durability and interface characteristics with the different matrices should be improved. The present work aims to characterize and compare the behavior of curauá filaments both in natural and treated conditions focusing on increasing their durability and bond performance. To minimize the degradation and high water absorption, two types of polymeric coatings were impregnated in the fibers: aluminum oxide and sand. Direct tensile tests were performed and correlated to the morphological observations of the fiber structure by SEM images. The adhesion between matrix and fiber was evaluated by pull-out tests. Volumetric changes due to the wetting and drying of the fibers were also analyzed. The results indicated an improvement of the fiber-matrix bond, fiber tensile strength and stiffness after the surface treatments. Additionally, the coating had a positive effect on the hydrophilic nature of the fiber, decreasing its water absorption capacity. |
| first_indexed | 2024-03-11T23:25:52Z |
| format | Article |
| id | doaj.art-b430d1af8e974dbfb4751809bb12672f |
| institution | Directory Open Access Journal |
| issn | 1544-0478 1544-046X |
| language | English |
| last_indexed | 2024-03-11T23:25:52Z |
| publishDate | 2022-02-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Natural Fibers |
| spelling | doaj.art-b430d1af8e974dbfb4751809bb12672f2023-09-20T12:50:19ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2022-02-0119264265710.1080/15440478.2020.17588631758863The Influence of Fiber Treatment on the Morphology, Water Absorption Capacity and Mechanical Behavior of Curauá FibersWena de N. Do R. Martel0I. P. Salgado1F. A. Silva2Pontifícia Universidade Católica do Rio de JaneiroPontifícia Universidade Católica do Rio de JaneiroPontifícia Universidade Católica do Rio de JaneiroThe use of vegetable fibers in the modern engineering industry represents a worldwide need for sustainable low-cost materials with desirable mechanical characteristics, such as high strength, modulus of elasticity and strain capacity. In order to be used as a reinforcement in composite systems, the Curauá fibers' durability and interface characteristics with the different matrices should be improved. The present work aims to characterize and compare the behavior of curauá filaments both in natural and treated conditions focusing on increasing their durability and bond performance. To minimize the degradation and high water absorption, two types of polymeric coatings were impregnated in the fibers: aluminum oxide and sand. Direct tensile tests were performed and correlated to the morphological observations of the fiber structure by SEM images. The adhesion between matrix and fiber was evaluated by pull-out tests. Volumetric changes due to the wetting and drying of the fibers were also analyzed. The results indicated an improvement of the fiber-matrix bond, fiber tensile strength and stiffness after the surface treatments. Additionally, the coating had a positive effect on the hydrophilic nature of the fiber, decreasing its water absorption capacity.http://dx.doi.org/10.1080/15440478.2020.1758863curauá fiberssurface treatmenttensile strengthmicrostructurewater absorption capacityfiber pull-out |
| spellingShingle | Wena de N. Do R. Martel I. P. Salgado F. A. Silva The Influence of Fiber Treatment on the Morphology, Water Absorption Capacity and Mechanical Behavior of Curauá Fibers Journal of Natural Fibers curauá fibers surface treatment tensile strength microstructure water absorption capacity fiber pull-out |
| title | The Influence of Fiber Treatment on the Morphology, Water Absorption Capacity and Mechanical Behavior of Curauá Fibers |
| title_full | The Influence of Fiber Treatment on the Morphology, Water Absorption Capacity and Mechanical Behavior of Curauá Fibers |
| title_fullStr | The Influence of Fiber Treatment on the Morphology, Water Absorption Capacity and Mechanical Behavior of Curauá Fibers |
| title_full_unstemmed | The Influence of Fiber Treatment on the Morphology, Water Absorption Capacity and Mechanical Behavior of Curauá Fibers |
| title_short | The Influence of Fiber Treatment on the Morphology, Water Absorption Capacity and Mechanical Behavior of Curauá Fibers |
| title_sort | influence of fiber treatment on the morphology water absorption capacity and mechanical behavior of curaua fibers |
| topic | curauá fibers surface treatment tensile strength microstructure water absorption capacity fiber pull-out |
| url | http://dx.doi.org/10.1080/15440478.2020.1758863 |
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