Investigation of Optimal Alkali-treated Perotis indica Plant Fibers on Physical, Chemical, and Morphological Properties

ABSTRACT

The main objective of this investigation is to study the physical, chemical, and morphological analysis of the optimal alkali-treated Perotis indica fiber (PIF). The PIF is treated with 5% (w/v) NaOH in different soaking times (i.e., 15 min, 30 min, 45 min, 60 min, and 75 min). Through thermogravimetric analysis, treatment is optimized at 5% NaOH in a soaking time of 60 min. That optimized alkali – treated PIF is used for further study. Fourier Infrared spectrum (FT-IR) analysis revealed that treatment has leached hemicellulose, lignin, and wax in the fiber. X-Ray Diffraction (XRD) showed improvement in Crystalline size (15.12 nm to 18.51 nm) and Crystalline index (48.3% to 55.43%). Morphological analysis was compared between untreated PIF and treated PIF by atomic force microscopic (AFM) analysis which exposed surface improvements after treatment.

摘要

本研究的主要目的是对碱处理后的籼稻纤维 (PIF) 进行物理, 化学和形态分析. 用5% (w/v) NaOH在不同浸泡时间 (即15min, 30min, 45min, 60min和75min) 处理紫罗兰纤维。通过热重分析, 优化处理条件为5%NaOH, 浸泡时间60min. 将优化后的碱处理后的纤维用于进一步的研究。傅立叶红外光谱 (FT-IR) 分析表明, 处理后纤维中的半纤维素, 木质素和蜡都已被淋洗. X射线衍射 (XRD) 显示晶体尺寸 (15.12nm-18.51nm) 和结晶指数 (48.3%-55.43%) 有所改善. 通过原子力显微镜 (AFM) 分析, 比较了未处理和处理后的纤维表面形貌.

KEYWORDS:

• Perotis indica fiber
• optimal alkali treatment
• atomic force microscopy

关键词:

• 紫罗兰纤维
• 最佳碱处理
• 原子力显微镜