کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
653565 | 1457508 | 2013 | 6 صفحه PDF | دانلود رایگان |
Nowadays, different materials with various nanostructures are used as additives for improving properties of lubricants. In this research, the effect of multi-walled carbon nanotubes (MWCNTs) in different concentrations on some of the properties of engine oils was studied. Viscosity, pour point, flash point and thermal conductivity as four quality parameters, which are effective in functionality of engine oil, were also studied. Among the different methods, which have been applied for dispersing nanotubes inside the base oil, the functionalization method for carbon nanotubes and using planetary ball mill have been determined as the best methods for stabilization of nanotubes inside the SAE 20 W50 engine oil. According to the obtained results, thermal conductivity and flash point of nano-lubricants with 0.1 wt% improved by 13.2% and 6.7%, respectively, with respect to the base oil.
Journal: International Communications in Heat and Mass Transfer - Volume 46, August 2013, Pages 142–147