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首页> 外文期刊>Journal of natural fibers >Effect of Extraction Methods on the Properties of Althea Officinalis L Fibers
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Effect of Extraction Methods on the Properties of Althea Officinalis L Fibers

机译：提取方法对木麻黄纤维性能的影响

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摘要

In this study, the effect of extraction methods on the properties of Althea officinalis l. (marshmallow) fibers was investigated. For this purpose, obtaining the fibers from stem was done by water and chemical extraction. After the extraction process, mechanical and thermal properties of althea fibers were investigated and morphological structure was examined. Crystallinity indexes (CI) of fibers were determined. Scanning electron microscopy results revealed that extraction of althea officinalis fibers by alkali boiling in 5% NaOH solution led to removal of surface impurities and also according to X-ray diffraction results, crystallinity index of fibers was improved by 14%. Chemically extracted fibers showed 37% higher tensile strength when compared to water extracted fibers. Density measurements revealed that chemically retted fibers have higher density. Also, Fourier Transform Infrared Spectroscopy analysis showed that chemical extraction caused change of chemical composition by decreasing and/or disappearing of some peaks which belong to hemicellulose and lignin.
机译：在这项研究中，提取方法对木麻油的性质的影响。 （棉花糖）纤维进行了研究。为此，通过水和化学提取从茎中获得纤维。在提取过程之后，研究了木质纤维的机械和热性能，并检查了其形态结构。测定纤维的结晶度指数（CI）。扫描电子显微镜结果表明，通过在5％NaOH溶液中碱煮沸提取木麻纤维可除去表面杂质，并且根据X射线衍射结果，纤维的结晶度提高了14％。与水提取纤维相比，化学提取的纤维显示出37％的拉伸强度。密度测量表明，化学浆纤维具有更高的密度。另外，傅立叶变换红外光谱分析表明，化学提取通过减少和/或消失一些属于半纤维素和木质素的峰而引起化学组成的变化。

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