A New Study on Tribological Performance of Cissus Quadrangularis Stem Fiber/Epoxy with Red Mud Filler Composite

ABSTRACT

Dry sliding friction and wear behavior, hardness, and thermogravimetric analysis (TGA) of Cissus quadrangularis stem fiber (CQSF)/epoxy resin composite, reinforced with red mud particulate filler were done. The hardness of the material increased by adding red mud filler. Thermogravimetric analysis (TGA) reveals that the maximum char yield obtained at 10 wt.% red mud particulate-filled with CQSF/epoxy composite. The optimization of dry sliding friction and wear behavior was done by response surface methodology (RSM) based on pin-on-disc wear test to determine the specific wear rate (SWR) and coefficient of friction (COF) of the materials. The experimental design was created with four input parameters at three different levels using full factorial central composite design (CCD). The minimum SWR was achieved at 5.93 wt.% red mud addition irrespective of other parameters, was obtained by RSM optimization technique. The scanning electron microscopy (SEM) images of the worn out surfaces substantiate the optimized results of wear properties.

摘要

对赤泥颗粒填料增强的四角莲茎纤维 (CQSF)/环氧树脂复合材料的干摩擦磨损性能, 硬度和热重分析 (TGA) 进行了研究. 赤泥填料的加入提高了材料的硬度. 热重分析 (TGA) 表明, 当赤泥颗粒填充 (CQSF)/环氧树脂时, 得到的最大炭产率为10%. 在销盘磨损试验的基础上, 采用响应面法 (RSM) 对材料的干摩擦磨损性能进行了优化, 确定了材料的比磨损率 (SWR) 和摩擦系数 (COF). 实验设计采用全析因中心复合设计 (CCD), 在三个不同的水平上使用四个输入参数. 采用RSM优化技术, 得到了赤泥掺量为5.93%时的最小SWR. 磨损表面和机械断裂表面的扫描电子显微镜 (SEM) 图像证实了磨损和机械性能的优化结果.

KEYWORDS:

• Cissus quadrangularis stem fiber
• Hand lay-up method
• Red mud
• Thermogravimetric analysis
• Response surface method
• Scanning electron microscopy.

关键词:

• 四角肌干纤维
• 手糊法
• 赤泥
• 热重分析
• 响应面法
• 扫描电子显微镜