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首页> 外文会议>Proceedings of the 3rd Pan American materials congress >Analysis of Coir Fiber Porosity
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Analysis of Coir Fiber Porosity

机译：椰壳纤维孔隙率分析

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摘要

Lignocellulosic natural fibers exhibit high variation in mechanical properties values due to their heterogeneity. Recent studies have shown that the dispersion of these properties depends on the diameter of the fiber. A possible explanation for the tendency of low mechanical properties with large diameter is the high probability of defects into the fiber. However, no study has yet investigated the relation between the diameter and defects of natural fibers. Hence, in the present work the total porosity of coir fiber (Cocos Nucifera L.) was estimated. A statistical analysis was carried out on a batch of about 100 fibers and the geometric density was measured by using a stereomicroscope. The closed and open porosity as well as the density of the fiber were quantified by helium pycnometry method. The values obtained were correlated with the diameter of each analyzed fiber. Results made it possible a more detailed knowledge of the porous structure of the fiber.
机译：木质纤维素天然纤维由于其异质性而表现出机械性能值的高变化。最近的研究表明，这些特性的分散性取决于纤维的直径。大直径机械性能低的趋势的可能解释是纤维中出现缺陷的可能性很高。但是，还没有研究调查天然纤维的直径和缺陷之间的关系。因此，在目前的工作中，估计了椰壳纤维（Cocos Nucifera L.）的总孔隙率。对一批约100根纤维进行统计分析，并使用立体显微镜测量几何密度。通过氦比重瓶法对封闭和开放的孔隙率以及纤维的密度进行定量。获得的值与每种分析的纤维的直径相关。结果使得有可能更详细地了解纤维的多孔结构。

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