In this paper, the physicochemical and mechanical properties of Raffia vinifera pith (RVP) are discussed. Microscopic observations have shown that the structure of the RVP is similar to that of a composite consisting of natural fibers. The effective area ratio of Raffia vinifera (RV) fibers was evaluated along the raffia stem using ImageJ software, and it decreases from the periphery to the center. Energy dispersion spectrometer (EDS) analysis shows that RVP is essentially composed of carbon and oxygen. Densities of RVP and its matrix were determined using Archimedes’ principle and law of mixtures, respectively; from the results obtained, they can be considered as one of the lightest materials. Young’s modulus of RVP has been obtained from tensile and bending tests, while that of matrix has been obtained using the law of mixtures during tensile tests. RVP has better specific properties, and the results of the matrix properties show that we can easily select another matrix which has better properties than the case studied during the elaboration of composites.

中文翻译：

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酒椰果的理化和力学特性

本文讨论了酒椰叶提夫（Raffia vinifera pith）的理化和力学性能。显微镜观察表明，RVP的结构类似于由天然纤维组成的复合材料的结构。酒椰有效面积比（RV）纤维使用ImageJ软件沿着酒椰茎进行了评估，并且从外围到中心逐渐减少。能量色散谱仪（EDS）分析表明，RVP基本由碳和氧组成。RVP及其基质的密度分别根据阿基米德原理和混合定律确定。从获得的结果来看，它们可以被认为是最轻的材料之一。RVP的杨氏模量是通过拉伸和弯曲试验获得的，而基体的杨氏模量是通过拉伸试验中混合物的定律获得的。RVP具有更好的比特性，并且基体特性的结果表明，我们可以轻松地选择另一种比复合材料加工过程中具有更好性能的基体。