Bibliographic Details
| Title: |
Performance Enhancement of Areca Sheath Fiber Reinforced Epoxy Composites: Structural Optimization with Polybutylene Terephthalate Monofilaments. |
| Authors: |
Adam, Mohamed1 (AUTHOR), Rajendrakumar, Kannapiran2 (AUTHOR) rajendrakumar.k@vit.ac.in |
| Source: |
Journal of Natural Fibers. Dec2025, Vol. 22 Issue 1, p1-21. 21p. |
| Subjects: |
Polybutylene terephthalate, Natural fibers, Structural optimization, Applied sciences, Mechanical behavior of materials, Epoxy resins, Thermal stability |
| Abstract (English): |
For decades, agricultural waste-derived natural fibers have been explored to reduce plastic waste impacts and improve waste management. However, natural fiber-reinforced composites often underperform compared to high-cost synthetic fibers. This study aims to enhance the performance of areca sheath fiber (ASF)-reinforced epoxy composites through minimal additions (3, 5, and 7 wt%) of low-cost thermoplastic polybutylene terephthalate monofilament (PBTM). The effects of alkali-treated ASF fiber loadings (30, 40, 50, and 60 wt%) and structural modifications on continuous fiber-reinforced composites were examined. PBTM was used to fabricate ASF-reinforced composites with sandwich and random structures. Compared to ASF-reinforced epoxy composites, the sandwich structures increased tensile and flexural strengths by up to 83% and 45%, respectively. Modifying 50 wt% ASF-reinforced composite with 7 wt% PBTM increased the tensile modulus (1.5 to 3.4 GPa), flexural breaking energy (1.1 to 1.7 MJ/m3), and impact strength (24.5 to 36.7 kJ/m2). This modification also significantly enhanced thermal stability and reduced water absorption, as confirmed by thermogravimetric and water absorption analyses. Optical microscopic fractogram characterization indicated that fiber surface treatment improved interface compatibility, while structural modifications of composites enhanced their load-bearing capacity. These findings suggest the suitability of ASF-reinforced PBTM-modified hybrid composites in construction and other structural applications. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
几十年来，人们一直在探索农业废物衍生的天然纤维，以减少塑料废物的影响，改善废物管理。然而，与高成本的合成纤维相比，天然纤维增强复合材料的性能往往较差. 本研究旨在通过少量添加（3、5和7重量%）低成本热塑性聚对苯二甲酸丁二醇酯单丝（PBTM）来提高槟榔鞘纤维（ASF）增强环氧复合材料的性能. 研究了碱处理ASF纤维负载量（30、40、50和60重量%）和结构改性对连续纤维增强复合材料的影响. PBTM用于制备具有夹层和随机结构的ASF增强复合材料. 与ASF增强环氧复合材料相比，夹层结构的拉伸和弯曲强度分别提高了83%和45%. 用7 wt%PBTM改性50 wt%ASF增强复合材料可提高拉伸模量（1.5至3.4 GPa）、弯曲断裂能（1.1至1.7 MJ/m3）和冲击强度（24.5至36.7 kJ/m2）. 热重和吸水分析证实，这种改性还显著提高了热稳定性并降低了吸水率. 光学显微断口表征表明，纤维表面处理提高了界面相容性，而复合材料的结构改性提高了其承载能力. 这些发现表明ASF增强PBTM改性混杂复合材料在建筑和其他结构应用中的适用性. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
