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首页> 外文期刊>The Journal of the Textile Institute >Physico-chemical characterisation and tensile mechanical properties of Agave americana L. fibres
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Physico-chemical characterisation and tensile mechanical properties of Agave americana L. fibres

机译：龙舌兰纤维的理化性质和拉伸力学性能

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In this paper, the physico-chemical and mechanical properties of Agave americana L. fibre are studied to explore the possibilities of using this fibre in textile industry. Three different processings for extracting fibres from the leaf of Agave americana L. plant were investigated: (i) raw fibres manually extracted, (ii) fibres extracted by retting leaves in seawater and (iii) fibres extracted after hydrolysis treatment of the leaves in distilled water. Chemical composition (cellulose, lignin and hemicellulose contents), physical properties (density, fineness and crystallinity) as well as mechanical properties of the resultant fibres were measured. The chemical composition reveals that the Agave americana L. fibre has a cellulose content at the order of 62% which is similar to that of other lignocellulosic fibres. The distilled water extracted fibres developed the highest cellulose content. Lignin content of Agave americana L. fibre is low compared to other natural fibres (2.4%) and seawater-extracted fibres generated the lowest lignin content (2.12%). Fourier transform infrared spectra (FTIR) and x-ray diffractometry of all extracted fibres revealed the same chain conformation. X-ray diffractograms showed that cellulose I is the main crystalline constituent. Concerning physical and mechanical properties, raw fibres were characterised by the lowest density (0.9) and the highest crystallinity (51.2%), they are also stronger and less extensible than the other two fibres. In this paper, we attempt to study the effect of extraction in water on the mechanical and physical properties of Agave americana L. fibres.
机译：本文研究了龙舌兰纤维的理化和机械性能，以探索在纺织工业中使用这种纤维的可能性。研究了三种不同的从龙舌兰植物叶片中提取纤维的方法：（i）手工提取的原始纤维，（ii）通过在海水中浸润叶子而提取的纤维，以及（iii）在蒸馏中对叶子进行水解处理后提取的纤维水。测量所得纤维的化学组成（纤维素，木质素和半纤维素含量），物理性质（密度，细度和结晶度）以及机械性质。化学成分表明，龙舌兰纤维的纤维素含量约为62％，与其他木质纤维素纤维相似。蒸馏水提取的纤维具有最高的纤维素含量。与其他天然纤维（2.4％）相比，龙舌兰纤维的木质素含量较低，而海水提取纤维产生的木质素含量最低（2.12％）。所有提取纤维的傅立叶变换红外光谱（FTIR）和X射线衍射法显示相同的链构象。 X射线衍射图表明，纤维素I是主要的结晶成分。关于物理和机械性能，粗纤维的特征在于最低的密度（0.9）和最高的结晶度（51.2％），它们也比其他两种纤维更结实，延伸性更差。在本文中，我们尝试研究水中提取对龙舌兰纤维的机械和物理性能的影响。

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