Investigation on Physicochemical, Thermal and Mechanical Properties of New Cellulosic Fiber Obtained from the Stem of Tecoma Stans

ABSTRACT

The objective of this study is to investigate chemical, physical, mechanical and thermal properties of novel cellulosic fiber extracted from the bark of Tecoma stans tree. Tests such as chemical, X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis and differential scanning calorimetry were carried on TS fibers. Higher cellulose and lower wax content in TSF make them stronger and establish better interfacial adhesion. X-ray diffraction analysis revealed the crystallinity index and crystallite size of TSF as 31.24% and 2.2 nm respectively. From thermogravimetric analysis, TSF was found to withstand up to 334°C and exhibit activation energy 72.03 kJ/mol. Tensile strength (330–543 MPa) and Young’s modulus (9.60–16.28 GPa) of TSF were found to be comparatively higher than other natural fibers. The morphology of TS fiber surface examined through FESEM revealed the existence of cellular structure with some serrations which makes the surface rougher and results in better adherence with polymer matrix.

摘要

本研究的目的是研究从山茱萸树皮中提取的新型纤维素纤维的化学, 物理, 机械和热性能. 对TS纤维进行了化学, X射线衍射, 傅里叶变换红外光谱, 热重分析和差示扫描量热等测试. TSF中较高的纤维素和较低的蜡含量使其更牢固, 并建立更好的界面粘合. X射线衍射分析表明, TSF的结晶指数和晶粒尺寸分别为31.24%和2.2nm. 通过热重分析, 发现TSF可承受高达334°C的温度, 并显示出72.03 kJ/mol的活化能. 发现TSF的抗拉强度 (330-543MPa) 和杨氏模量 (9.60-16.28GPa) 相对高于其他天然纤维. 通过FESEM检查TS纤维表面的形态, 发现存在带有一些锯齿的细胞结构, 这使得表面更粗糙, 并导致更好地与聚合物基体粘附.

KEYWORDS:

• Tecoma stans fiber
• cellulose
• chemical properties
• crystallinity index
• mechanical properties
• thermal stability

KEY WORDS:

• 关键词Tecoma stans fiber
• Tecoma stans纤维
• Cellulose
• 纤维素
• Chemical Properties
• 化学性质
• Crystallinity index
• 结晶度指数
• Mechanical properties
• 力学性能
• Thermal stability热稳定性

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

The author(s) reported there is no funding associated with the work featured in this article.