Date palm (Phoenix dactylifera L.) has been emerging as a rich source of cellulosic fibers due to its wide availability and large production of byproducts that are suitable for fiber extraction. However, available literature lacks a comprehensive study that benchmarks date palm fibers against other leaf fibers. This work provides the first experimental comparative analysis between textile fibers from date palm midrib and spadix to other commonly used leaf fibers (sisal, abaca, and banana). The study evaluates the morphological, chemical, mechanical and thermal properties. Results showed that date palm fibers are finer than sisal and abaca (123 μm) and have higher cellulose purity than sisal and banana (59%). Furthermore, they possess enhanced thermal stability up to 250 °C, high crystallinity index comparable to abaca (64%), and high tensile strength comparable to sisal (602 MPa). This research will help in identifying the position of date palm fibers, which can shed the light on potential valorization of such underutilized resource.

Graphical abstract

中文翻译：

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长枣椰树 (Phoenix dactylifera L.) 中脉和穗花纤维与其他商业叶纤维的比较研究

海枣( Phoenix dactylifera L .) 由于其广泛的可用性和大量生产适用于纤维提取的副产品，已成为纤维素纤维的丰富来源。然而，现有文献缺乏将椰枣纤维与其他叶纤维进行比较的综合研究。这项工作首次提供了椰枣中脉和穗花序纺织纤维与其他常用叶纤维（剑麻、蕉麻和香蕉）之间的实验比较分析。该研究评估了形态、化学、机械和热性能。结果表明，枣椰树纤维比剑麻和马尼拉麻纤维 (123 μm) 更细，纤维素纯度高于剑麻和香蕉 (59%)。此外，它们具有高达 250 °C 的增强热稳定性、与马尼拉麻 (64%) 相当的高结晶度指数和与剑麻 (602 MPa) 相当的高拉伸强度。

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