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Comparative Evaluation of Chemical Treatment on the Physical and Mechanical Properties of Areca Frond, Banana, and Flax Fibers
Journal of Natural Fibers ( IF 3.5 ) Pub Date : 2020-06-24 , DOI: 10.1080/15440478.2020.1784817
Srinivas Shenoy Heckadka 1 , Suhas Yeshwant Nayak 1 , Thomas Joe 1 , Jacob Zachariah N 1 , Sonia Gupta 1 , Anil Kumar N V 2 , Marta Matuszewska 1, 3
Affiliation  

ABSTRACT

The present work aims to understand the effect of chemical treatment on the physical and mechanical characteristics of the natural fibers, namely, areca frond fibers, banana, and flax fibers. Chemical reagents viz. sodium bicarbonate, potassium permanganate, and chromium sulfate were used for surface modifications. Tensile strength of the fibers was determined for analyzing the influence of treatments. Scanning electron microscopy was adopted to visualize the surface morphology. Fourier transform infrared spectroscopy was performed on the fiber specimen to interpret functional group modifications. The research results indicated a decrease in fiber diameter with increase in density of fibers post treatments. For areca frond and flax fibers, chromium sulfate treatment was the most effective while that for banana fibers sodium bicarbonate based treatment turned out to be most effective over the others. Scanning electron microscopy images confirmed clear visibility of fiber inner cell structure, protruding secondary fibrils for treated fibers, reagent coating on the fiber surface was also observed in the case of chromium sulfate-treated samples. Fourier transform infrared spectroscopy analysis showed distinct bands indicating functional group modifications corresponding to cellulose, hemicellulose, and lignin.



中文翻译:

化学处理对槟榔叶、香蕉和亚麻纤维物理力学性能的比较评价

摘要

本工作旨在了解化学处理对天然纤维(即槟榔叶纤维、香蕉和亚麻纤维)物理和机械特性的影响。化学试剂即。碳酸氢钠、高锰酸钾和硫酸铬用于表面改性。测定纤维的拉伸强度以分析处理的影响。采用扫描电子显微镜观察表面形态。对纤维样品进行傅里叶变换红外光谱分析以解释官能团修饰。研究结果表明,纤维直径随着处理后纤维密度的增加而减小。对于槟榔叶和亚麻纤维,硫酸铬处理是最有效的,而基于碳酸氢钠的香蕉纤维处理比其他处理更有效。扫描电子显微镜图像证实了纤维内部细胞结构的清晰可见性,处理过的纤维的次级原纤维突出,在硫酸铬处理样品的情况下也观察到纤维表面上的试剂涂层。傅里叶变换红外光谱分析显示不同的条带表明对应于纤维素、半纤维素和木质素的官能团修饰。在硫酸铬处理样品的情况下,也观察到纤维表面上的试剂涂层。傅里叶变换红外光谱分析显示不同的条带表明对应于纤维素、半纤维素和木质素的官能团修饰。在硫酸铬处理样品的情况下,也观察到纤维表面上的试剂涂层。傅里叶变换红外光谱分析显示不同的条带表明对应于纤维素、半纤维素和木质素的官能团修饰。

更新日期:2020-06-24
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