Cellulosic Microfiber Extraction from Ecofriendly Bahunia Racemosa and Its Characterization

ABSTRACT

Recent demand of eco-friendly advanced materials for automotive components motivated to develop natural fiber-reinforced composites due to their extraordinary properties with minimum weight at low cost. The reinforcement of microcellulosic extracted from lignocellulosic materials can enhance the mechanical properties with astonishing the biodegradability quality in the polymer-based composites. Bahunia racemosa (BR) fibers were chosen to extract cellulose microfibers through chemo-mechanical method and the chemical compositions at different stages are determined by using ASTM standards. The average diameter of the extracted cellulose micro Bahunia racemosa fibers (CMBRF) found as 10 μm. The microfiber composites are fabricated at different weight fractions such as 20, 30, 40 and 50 by compression molding method. Surface properties of the produced fibers and fabricated composite structures are analyzed through microscopic techniques. The influence of reinforcement effect on the mechanical properties of fabricated composite structures is analyzed through standard testing methods. The composites reinforced with 40 wt% of cellulose microfibers exhibited highest enhancement about the tensile strength and young modulus of 80.25 and 40%, respectively. The proposed composites can be used to make various low cost, light weight composite materials for industrial and construction industries.

摘要

由于天然纤维增强复合材料具有超凡的性能、重量轻、成本低,汽车零部件对环保先进材料的需求促使人们开发天然纤维增强复合材料. 从木质纤维材料中提取的微纤维素的增强可以提高聚合物基复合材料的力学性能,同时提高其生物降解性. 采用化学机械法对总状巴木霉(BR)纤维进行了提取,采用ASTM标准测定了不同提取阶段的化学成分. 提取的纤维素微总状巴尤尼亚纤维(CMBRF)的平均直径为10 μm. 采用模压成型方法制备了20、30、40和50等不同重量分数的超细纤维复合材料. 通过微观技术分析了所制备的纤维和所制备的复合材料结构的表面性能. 通过标准试验方法,分析了补强效应对装配式复合材料结构力学性能的影响. 纤维含量为40%时,复合材料的拉伸强度和杨氏模量分别提高了80.25%和40%. 所提出的复合材料可用于制造工业和建筑行业的各种低成本、轻质复合材料.

KEYWORDS:

• Natural fiber
• composites
• bahunia racemosa
• cellulose microfiber

关键词:

• 天然纤维
• 复合材料
• 总状巴尤尼亚
• 纤维素超细纤维

Highlights

• Bauhinia racemosa Lam. fiber is underutilized, and its industrial potential is untapped.

• Extraction of cellulose microfibers from underutilized Bahunia racemose.

• Utilization of cellulose microfibers for making a value-added product.

• Morphological and chemical properties analysis of treated cellulose microfibers.

• Cellulose micro Bahunia racemosa fibers can be used for making bio composite panels.

Disclosure statement

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