An Investigation into the Tribological Properties of Bidirectional Jute/Carbon Fiber Reinforced Polyester Hybrid Composites

ABSTRACT

In this work, the tribological performance of bidirectional jute/carbon fiber reinforced polyester composites was investigated using response surface methodology. The effects of three factors namely fiber weight fraction, load, and sliding velocity on the wear and friction values were examined. The composites were fabricated by using compression molding technique and the dry sliding test was conducted using pin-on-disk machine. The response surface methodology coupled with three factors – three-level Box-Behnken design was employed to examine the interactive effects of process variables on wear loss and coefficient of friction. Moreover, Analysis of Variance technique was used to inspect the statistical significance of the developed model. The outcomes revealed that the wear loss increased with the increase in sliding velocity and load and decreased with the increase in weight volume fraction due to diminishing contact between the polyester matrix and rotating disk. However, the coefficient of friction decreased with the increase in process variables. Furthermore, the morphology of worn-out samples was examined using scanning electron microscopy to understand wear mechanisms.

摘要

采用响应面法对黄麻/碳纤维双向增强聚酯复合材料的摩擦学性能进行了研究. 考察了纤维质量分数、载荷和滑动速度三个因素对摩擦磨损值的影响. 采用压缩成型工艺制备了复合材料，并在盘式针机上进行了干滑动试验. 采用响应面法结合三因素三水平Box-Behnken设计，研究了工艺变量对磨损损失和摩擦系数的交互影响. 采用方差分析技术对所建立的模型进行统计显著性检验. 结果表明，由于聚酯基体与转盘之间的接触减小，磨损量随滑动速度和载荷的增加而增大，随重量体积分数的增加而减小. 但随着工艺变量的增加，其系数逐渐减小. 此外，用扫描电子显微镜观察磨损样品的形貌，以了解磨损机理.

KEYWORDS:

• Natural/synthetic fibers
• wear loss
• coefficient of friction
• RSM
• ANOVA
• wear mechanism

关键词:

• 天然/合成纤维
• 穿损失
• 摩擦系数
• 磨损机制

Correction Statement

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