沙丘砂基二氧化硅和碱处理枣椰纤维作为高效填料在改善混合环氧树脂复合材料性能方面的协同效应

IF 2.7 3区 化学 Q2 POLYMER SCIENCE Journal of Applied Polymer Science Pub Date : 2024-09-04 DOI:10.1002/app.56238
Samira Maou, Yazid Meftah, Yves Grohens, Antoine Kervoelen, Anthony Magueresse, Wassila Selmani, Fatima Ferhad
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引用次数: 0

摘要

木质纤维素纤维增强复合材料具有更强的物理性能和生态友好性,因此这些生物复合材料在重要的工程领域得到了广泛应用。在本研究中,我们研究了沙丘砂(DS)基二氧化硅(SiO2)和碱处理枣椰纤维(ADPF)填料对环氧树脂(EP)混合复合材料的热物理特性和粘弹性特性的协同影响。采用手糊工艺生产了用 20 wt.% ADPF 以及 5、7 和 10 wt.% DS 增强的 EP 混合复合材料。与其他复合材料样品相比,使用 20 重量百分比 ADPF 和 10 重量百分比 DS(HC5)增强的 EP 基体具有更好的热性能(Tmax = 380°C,Tg = 63.13°C)和动态机械性能(存储模量 = 2700 兆帕)。此外,科尔-科尔图显示了 ADPF、DS 和环氧基质之间良好的相互作用。扫描电子显微镜(SEM)测量进一步证实,DS 颗粒、ADPF 纤维和环氧基质之间形成的有效界面降低了吸水率(1.5%)。将 DS 的含量提高到 10 wt.%,可获得最佳的润湿条件和最低的厚度膨胀率(2.8%)。基于这些研究结果,我们可以得出结论:由于具有优异的动态机械特性,含有 10 wt.% DS 的混合复合材料可应用于重要的飞机和航空领域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Synergistic effects of dune sand-based silica and alkali-treated date palm fiber as efficient fillers for improving the properties of hybrid epoxy composites

Lignocellulosic fiber-reinforced composites exhibit enhanced physical properties and eco-friendliness, which has resulted in extended application of these biocomposite materials in important engineering sectors. In this study, we investigated the synergistic impacts of dune sand (DS)-based silica (SiO2) and alkali-treated date palm fiber (ADPF) fillers on the thermophysical and viscoelastic characteristics of epoxy (EP) hybrid composites. A hand layup procedure was employed to produce EP hybrid composites reinforced with 20 wt.% ADPF as well as 5, 7, and 10 wt.% DS. Compared to the other composite samples, the EP matrix reinforced with 20 wt.% ADPF and 10 wt.% DS (HC5) exhibited better thermal (Tmax = 380°C, Tg = 63.13°C) and dynamic mechanical properties (storage modulus = 2700 MPa). Additionally, Cole–Cole plots revealed the excellent interaction between ADPF, DS, and epoxy matrix. Scanning electron microscopy (SEM) measurements further confirmed that the development of an effective interface between DS particles, ADPF fiber, and epoxy matrix caused a decrease in water absorption (1.5%). The best wetting conditions with the lowest thickness swelling (2.8%) were obtained by increasing the DS content up to 10 wt.%. Based on these findings, it can be concluded that, owing to their superior dynamic mechanical characteristics, hybrid composites containing 10 wt.% DS may be employed in important aircraft and aeronautic applications.

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来源期刊
Journal of Applied Polymer Science
Journal of Applied Polymer Science 化学-高分子科学
CiteScore
5.70
自引率
10.00%
发文量
1280
审稿时长
2.7 months
期刊介绍: The Journal of Applied Polymer Science is the largest peer-reviewed publication in polymers, #3 by total citations, and features results with real-world impact on membranes, polysaccharides, and much more.
期刊最新文献
Editorial Board, Aims & Scope, Table of Contents Editorial Board, Aims & Scope, Table of Contents Editorial Board, Aims & Scope, Table of Contents Synthesis of reaction promoters for epoxy polymerization: Enhancing storage stability and mechanical properties of one-pot epoxy systems Editorial Board, Aims & Scope, Table of Contents
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