Physicochemical and Thermal Properties of New Cellulosic Fiber Obtained from the Stem of Markhamia lutea

ABSTRACT

This study deals with the extraction and characterization of novel cellulosic fiber extracted from the bark of Markhamia lutea tree. The chemical constituents of fibers such as 66.41 wt.% of cellulose, 6.36 wt.% of hemicellulose, 7.82 wt.% of lignin, 0.41 wt.% of wax and 9.06 wt.% of moisture were identified. The functional groups present in the fibers were examined through Fourier transform infrared spectroscopy. The crystallinity index and crystallite size of fibers determined using X-ray diffractogram are found to be 71.77% and 2.07 nm. Lower density (1050 kg/m³) and high tensile strength (835.72 ± 197.05 MPa) makes MLF reinforced polymer composites ideal for lightweight applications. Thermal degradation behavior of the fiber investigated through thermogravimetric, derivative thermogravimetric and differential scanning calorimetry revealed the beginning of initial thermal degradation at 244°C, and this makes them suitable for making green composites.

摘要

本研究对从马卡蜜树树皮中提取的新型纤维素纤维进行了提取和表征. 确定了纤维的化学成分,如66.41%的纤维素、6.36%的半纤维素、7.82%的木质素、0.41%的蜡和9.06%的水分. 通过傅里叶变换红外光谱分析了纤维中存在的官能团. 用X射线衍射图测定纤维的结晶度指数和晶粒尺寸分别为71.77%和2.07nm. 低密度 (1050kg/m3)和高抗拉强度 (835.72±197.05 MPa)使MLF增强聚合物复合材料成为轻量化应用的理想选择. 通过热重分析、导数热重分析和差示扫描量热法对纤维的热降解行为进行了研究,发现纤维在244°C时开始热降解,这使其适合制造绿色复合材料.

KEYWORDS:

• Markhamia lutea fiber
• cellulose
• chemical analysis
• crystallinity index
• thermal stability

关键词:

• 木犀草纤维
• 纤维素
• 0 'y56 5结晶度指数
• 热稳定性

Acknowledgments

The authors thank final year mechanical engineering students of Government Polytechnic college-Villupuram 605752, Tamilnadu India for rendering their support for carrying out this research work.

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.

Additional information

Funding

: No funding