Characterization of raw and alkali treated new cellulosic fiber from the rinds of Thespesia populnea plant

ABSTRACT

This current study aims to evaluate the suitability of a new cellulosic fiber by characterization methods. Raw fibers are extracted from the rinds of Thespesia Populnea plant by the water-retting process. The extracted raw fibers are treated with 1% (w/v) of NaOH solution with a soaking time of 90 minutes. The characterization outcomes report that alkali treatment increases the crystalline index and cellulose content from 41% to 65% and 52.5 wt% to 58.9 wt%, respectively. The FT-IR spectra analysis confirms diminishing of non-cellulosic substances in alkali-treated fiber. The alkali treatment alters the fiber surface and fiber diameter, which is evidenced in morphological analysis.

摘要

本研究旨在通过表征方法来评估一种新型纤维素纤维的适用性. 通过水浸法从白杨皮中提取粗纤维. 提取的粗纤维用1%(w/v)的NaOH溶液处理,浸泡时间为90分钟. 表征结果表明,碱处理使结晶指数和纤维素含量分别从41%提高到65%和52.5%到58.9%. 红外光谱分析证实碱处理后纤维中非纤维素类物质减少. 形态分析表明,碱处理改变了纤维表面和纤维直径.

KEYWORDS:

• Natural fiber
• chemical treatment
• crystallinity index
• thermal stability
• Thespesia populnea
• morphological analysis

关键词:

• 天然纤维
• 化学处理
• 结晶度指数
• 热稳定性
• 白杨树
• 形态分析