Thermal and Rheological Properties of Industrial Mineral Gear Oil and Paraffinic Oil/CNTs Nanolubricants

  • Waleed Khalil
  • Alaa MohamedEmail author
  • Mohamed Bayoumi
  • T. A. Osman
Research Paper


Carbon nanotubes (CNTs) are used as a nanoadditive due to their unique properties and for improving the lubricant’s properties. In this research, the effect of CNTs in different concentrations (0.1, 0.5, 1 and 2 wt%) on kinematic viscosity, pour point, flash point and thermal conductivity coefficient as four quality parameters which are effective in the functionality of oil is evaluated and compared against the standard Mobil gear 627 and paraffinic mineral oils. The samples were tested according to ASTM D-445, ASTM D-97 and ASTM D-92 standards, respectively. The results indicated that the thermal conductivity, flash point, pour point and kinematic viscosity of nanolubricants with low concentration of CNTs improved with respect to the base oil. Dispersion of CNTs as additive has improved the lubricant properties and operational characteristics of Mobil gear 627 and paraffinic mineral oils.


Carbon nanotubes Kinematic viscosity Pour point Flash point Thermal conductivity coefficient Mobil gear 627 Paraffinic mineral oils 


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Copyright information

© Shiraz University 2017

Authors and Affiliations

  • Waleed Khalil
    • 1
  • Alaa Mohamed
    • 1
    • 2
    Email author
  • Mohamed Bayoumi
    • 3
  • T. A. Osman
    • 4
  1. 1.Production Engineering and Printing Technology DepartmentAkhbar El Yom AcademyGizaEgypt
  2. 2.Egypt Nanotechnology Center, EGNCCairo UniversityGizaEgypt
  3. 3.Mechanical Engineering DepartmentAl-Azhar UniversityCairoEgypt
  4. 4.Mechanical Design and Production Engineering DepartmentCairo UniversityGizaEgypt

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