Mucha Mateusz, Krzyzak Aneta, Kosicka Ewelina, Coy Emerson, Kościński Mikołaj, Sterzyński Tomasz, Sałaciński Michał
Faculty of Aviation, Military University of Aviation, Dywizjonu 303 35, 08-521 Dęblin, Poland.
Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland.
Materials (Basel). 2020 Jun 12;13(12):2696. doi: 10.3390/ma13122696.
The aim of the study is to assess the effect of multi-walled carbon nanotubes (MWCNTs) on the wear behavior of MWCNT-doped epoxy resin. In this study, a laminating resin system designed to meet the standards for motor planes was modified with MWCNTs at mass fractions from 0.0 wt.% to 2.0 wt.%. The properties of the carbon nanotubes were determined in Raman spectroscopy and HR-TEM. An examination of wear behavior was conducted on a linear abraser with a visual inspection on an optical microscope and SEM imaging, mass loss measurement, and evaluation of the wear volume on a profilometer. Moreover, the mechanical properties of MWCNTs/epoxy nanocomposite were evaluated through a tensile test and Shore D hardness test. The study shows that the best wear resistance is achieved for the mass percentage between 0.25 wt.% and 0.5 wt.%. For the same range, the tensile strength reaches the highest values and the hardness the lowest values. Together with surface imaging and a topography analysis, this allowed describing the wear behavior in the friction node and the importance of the properties of the epoxy nanocomposite.
本研究的目的是评估多壁碳纳米管（MWCNTs）对掺杂MWCNT的环氧树脂磨损行为的影响。在本研究中，一种旨在满足电机平面标准的层压树脂体系用质量分数为0.0 wt.%至2.0 wt.%的MWCNTs进行了改性。通过拉曼光谱和高分辨率透射电子显微镜（HR-TEM）测定了碳纳米管的性能。在直线磨损试验机上对磨损行为进行了检测，通过光学显微镜和扫描电子显微镜（SEM）成像进行目视检查、测量质量损失，并使用轮廓仪评估磨损体积。此外，通过拉伸试验和邵氏D硬度试验评估了MWCNTs/环氧纳米复合材料的力学性能。研究表明，质量百分比在0.25 wt.%至0.5 wt.%之间时耐磨性最佳。在相同范围内，拉伸强度达到最高值，硬度达到最低值。结合表面成像和形貌分析，这有助于描述摩擦节点处的磨损行为以及环氧纳米复合材料性能的重要性。
