Characterization of Bio-fiber from Pongamiapinnata L. Bark as Possible Reinforcement of Polymer Composites

ABSTRACT

The suitability of Pongamia pinnata L .bark fiber (PPF) as polymer reinforcement was identified first time in this article. Chemical analysis, X-Ray Diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FTIR) analysis exemplified the presence of cellulose, hemicelluloses, and lignin in PPF. Higher cellulose (62.34 wt.%), crystalline index (45.31%) and low hemicellulose (14.57 wt. %), density (1345 kg/m³), and crystalline size (5.43 nm) of PPF were beneficial for reinforcement. PPF is thermally stable up to 210°C which is acknowledged from the Thermogravimetric and Differential Scanning Calorimeter curves. Surface roughness parameters of PF were identified through the Atomic Force Microscope. Comparatively lower density (1345 kg/m³) and higher tensile Strength (322 Mpa) of PPF have proved that it is an appropriate reinforcement to fabricate the eco-friendly bio-composites.

摘要

首次确定了马尾松皮纤维（PPF）作为聚合物增强材料的适宜性. 化学分析、X射线衍射（XRD）和傅立叶变换红外光谱（FTIR）分析表明PPF中存在纤维素、半纤维素和木质素. PPF的高纤维素（62.34 wt.%）、结晶指数（45.31%）和低半纤维素（14.57 wt.%）、密度（1345 kg/m3）和结晶尺寸（5.43 nm）有利于增强. PPF的热稳定性高达210°C，这是由热重量分析和差示扫描量热仪曲线确定的. 用原子力显微镜对酚醛树脂的表面粗糙度参数进行了测定. PPF的密度较低（1345Kg/m3），拉伸强度较高（322MPa），证明了该复合材料是制备环保型生物复合材料的合适补强材料。

KEYWORDS:

• Pongamia pinnata L. fiber (PPF)
• Crystalline Index (CI)
• Crystallite Size (CS)
• Kinetic activation energy and surface roughness parameters

关键词:

• 马尾松纤维
• 结晶指数
• 晶体尺寸
• 动力学活化能和表面粗糙度参数