Effect of fiber loading on the mechanical, morphological, and dynamic mechanical characteristics of Calamus tenuis fiber reinforced epoxy composites

IF 3.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2024-09-30 DOI:10.1002/vnl.22167

Arup Kar, Dip Saikia, Sivasubramanian Palanisamy, Narayanasamy Pandiarajan

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引用次数: 0

Abstract

This research delves into incorporating Calamus tenuis fibers as reinforcing material in polymer composites, conducting a thorough analysis of their viscoelastic, mechanical, and morphological attributes. Employing the hand layup method, Calamus tenuis fiber-reinforced epoxy composites were crafted across a range of fiber loadings from 0 to 25 wt% with 5 wt% increments. Results highlight significant enhancements in mechanical attributes upon the incorporation of Calamus tenuis fibers into the matrix. Notably, the composite with 10 wt% Calamus tenuis fibers emerges as the top performer, showcasing unparalleled mechanical strength compared to neat epoxy. It achieves the highest tensile strength (21.08 ± 1.03 MPa) and tensile modulus (2.84 ± 0.09 GPa), along with the utmost flexural strength (63.31 ± 1.05 MPa) and flexural modulus (3.12 ± 0.16 GPa). Furthermore, it demonstrates remarkable impact strength (9.40 ± 0.40 J/cm²), emphasizing its resilience. Scanning electron microscopy (SEM) analysis confirms enhanced fiber-matrix adhesion in the 10 wt% composite. Additionally, dynamic mechanical analysis (DMA) results reveal enhancements in storage and loss modulus, with the 10 wt% composites exhibiting the highest values. However, the damping factor decreases with the inclusion of Calamus tenuis fibers. Overall, a 10 wt% fiber loading is deemed ideal for enhancing the mechanical and dynamic properties of epoxy composites.

Highlights

Utilized Calamus tenuis fibers as reinforcing materials in epoxy composites.
Investigated the mechanical, morphological, and viscoelastic properties.
Calamus tenuis fibers boost epoxy composite mechanical traits significantly.
SEM confirms improved fiber-matrix adhesion in 10 wt% composite.
DMA highlights elevated storage and loss modulus in 10 wt% composites.

Abstract Image

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本研究深入研究了将菖蒲纤维作为增强材料加入聚合物复合材料中，并对其粘弹性、力学和形态特性进行了深入分析。采用手工铺层法，菖蒲纤维增强环氧复合材料的纤维负荷范围为0 ~ 25%，增量为5 wt%。结果显示，将菖蒲纤维掺入基质后，其力学特性有显著增强。值得注意的是，与纯环氧树脂相比，含有10%菖蒲纤维的复合材料表现最佳，具有无与伦比的机械强度。抗拉强度最高（21.08±1.03 MPa），抗拉模量最高（2.84±0.09 GPa），抗折强度最高（63.31±1.05 MPa），抗折模量最高（3.12±0.16 GPa）。此外，它具有显著的冲击强度（9.40±0.40 J/cm2），突出了它的回弹性。扫描电子显微镜（SEM）分析证实，在10%的复合材料中增强了纤维-基质的附着力。此外，动态力学分析（DMA）结果显示存储模量和损耗模量的增强，10% wt%的复合材料表现出最高的值。然而，随着菖蒲纤维的加入，阻尼系数降低。总的来说，10 wt%的纤维负荷被认为是提高环氧复合材料机械和动态性能的理想选择。利用菖蒲纤维作为环氧复合材料的增强材料。研究了其力学、形态和粘弹性性能。菖蒲纤维显著提高环氧复合材料的力学性能。扫描电镜证实，在10 wt%的复合材料中，纤维-基质的附着力得到改善。DMA突出了10 wt%复合材料的高存储和损耗模量。

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来源期刊

Journal of Vinyl & Additive Technology 工程技术-材料科学：纺织

CiteScore

5.40

自引率

14.80%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.