Title of article :
Investigation of shear stability of commercial polymer of viscosity index improver for determination of engine oil optimal formulation
Author/Authors :
Aghaie, Mehran Department of Chemistry - Islamic Azad University, Tehran , Mazandarani, E. Department of Chemistry - Islamic Azad University, Tehran , Sadeghi ghari, H. Omidieh Azad University
Abstract :
The lubricating oils in each mechanical device are affected by shear forces. Polymers in lubricating oils engine, in particular, undergo many changes because of the influence of the applied forces. Awareness of these changes can help us to design optimal formulations. In this work, shear stability of four commercial was studied. Calculation of various parameters about viscosity in the enhancing were performed and compared. The results of this study can be used for optimizing the usage of polymers in engine oil.
Keywords :
Shear stability , polymers Viscosity index , Engine oil
Journal title :
Journal of Physical and Theoretical Chemistry
