Physical, Mechanical, and Environmental Properties of Corn Stalk Fiber Reinforced Braking Composites Prepared by Wet Granulation

ABSTRACT

Due to the increasing concern with the environmental safety and recyclability, natural fiber-reinforced composites have attracted more and more attention. In the present work, braking composite samples with and without wet granulation were fabricated and their physical, mechanical, and environmental properties were investigated systematically. The experimental results showed that the use of the wet granulation technology did not improve significantly the water absorption and impact strength properties of the braking composite samples but considerably improved their density and environmental performance in comparison to the braking composite sample without wet granulation, especially the environmental performance. Among the braking composite samples with wet granulation, with the decreasing of the resin contents, the density was decreased gradually, the water absorption was decreased and then increased, and the impact strength was increased. Samples FG-13 and FG-11 had a relatively low dust capacity, and sample FG-5 was the highest. The method of the braking composite preparation in the present work may serve as a useful guide to produce a strong low-resin environmental-friendly composite for automotive components.

摘要

随着人们对环境安全性和可回收性的日益关注, 天然纤维增强复合材料越来越受到人们的重视. 在本研究中, 制备了具有和不具有湿法造粒的制动复合材料样品, 并对其物理、机械和环境性能进行了系统研究. 试验结果表明, 与未经湿法造粒的制动复合材料样品相比, 采用湿法造粒技术并没有显著改善制动复合材料样品的吸水性和冲击强度性能, 但显著改善了其密度和环境性能, 尤其是环境性能. 在湿法制粒的刹车复合材料样品中, 随着树脂含量的降低, 密度逐渐降低, 吸水率先降低后升高, 冲击强度增加. 样品FG-13和FG-11的含尘量相对较低, 样品FG-5的含尘量最高. 本工作中制备制动复合材料的方法可作为生产用于汽车部件的高强度低树脂环保复合材料的有用指南.

KEYWORDS:

• Corn stalk fiber
• agricultural residue
• physical properties
• mechanical properties
• environmental performance
• braking composite
• wet granulation

关键词:

• 玉米秸秆纤维
• 农残
• 物理性质
• 机动的

Acknowledgments

This project was supported by the National Natural Science Foundation of China (Grant Nos. 51475205 and 51505259), by the Natural Science Foundation for Colleges and Universities in Jiangsu Province of China (Grant No. 19KJA430018), by the Primary Research & Development Plan of ZhenJiang City (Grant No. NY2019015), by the Priority Academic Program Development of Jiangsu Higher Education Institutions (Grant No. PAPD-2018-87), and by the High-level Innovation and Entrepreneurship Talent Introduction Plan of Jiangsu Province (Grant No. JSSCBS20210951).

Disclosure statement

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