Keshavamurthy R, Tambrallimath Vijay, Rajhi Ali A, R M Shabbir Ahmed, Patil Arun Y, Yunus Khan T M, Makannavar R
Department of Mechanical Engineering, Dayananda Sagar College of Engineering, Bengaluru 560078, India.
Department of Automobile Engineering, Dayananda Sagar College of Engineering, Bengaluru 560078, India.
Polymers (Basel). 2021 Aug 28;13(17):2905. doi: 10.3390/polym13172905.
In this study, acrylonitrile butadiene styrene (ABS) and graphite powder-a solid lubricant-were filled and characterized for friction and wear responses. The fused deposition modeling (FDM) technique was utilized to synthesize ABS-graphite composites. A twin-screw extrusion approach was employed to create the composite filament of graphite-ABS that is suitable for the FDM process. Three graphite particle ratios ranging from 0% to 5% were explored in the ABS matrix. The wear and friction properties of ABS composites were examined using a pin on disc tribometer at varied sliding velocities and weights. As a result of the graphite addition in the ABS matrix, weight losses for FDM components as well as a decreased coefficient of friction were demonstrated. Furthermore, as the graphite weight percentage in the ABS matrix grows the value of friction and wear loss decreases. The wear mechanisms in graphite filled ABS composites and ABS were extensively examined using scanning electron microscopy and confocal microscopy.
在本研究中，填充了丙烯腈-丁二烯-苯乙烯共聚物（ABS）和作为固体润滑剂的石墨粉，并对其摩擦和磨损响应进行了表征。采用熔融沉积建模（FDM）技术合成了ABS-石墨复合材料。采用双螺杆挤出法制备了适用于FDM工艺的石墨-ABS复合长丝。在ABS基体中探索了三种范围从0%到5%的石墨颗粒比例。使用销盘摩擦磨损试验机在不同的滑动速度和重量下检测了ABS复合材料的磨损和摩擦性能。由于在ABS基体中添加了石墨，FDM部件的重量损失以及摩擦系数降低得到了证实。此外，随着ABS基体中石墨重量百分比的增加，摩擦和磨损损失值降低。使用扫描电子显微镜和共聚焦显微镜对石墨填充的ABS复合材料和ABS中的磨损机制进行了广泛研究。
