Experimental investigation and development of new correlation for influences of temperature and concentration on dynamic viscosity of MWCNT-SiO2 (20-80)/20W50 hybrid nano-lubricant

doi:10.1016/j.cjche.2017.06.011

摘要/Abstract

摘要： In current research, MWCNT-SiO₂/oil hybrid nano-lubricant viscosity is experimentally examined. By dispersing 0.05%, 0.1%, 0.2%, 0.4%, 0.8% and 1% volume of MWCNTs and SiO₂ nanoparticle into the engine oil SAE 20W50, the temperature and solid volume fraction consequences were studied. At 40 to 100℃ temperature, the viscosities were assessed. The results indicated Newtonian behavior for the hybrid nano-lubricant. Moreover, solid volume fraction augmentation and temperature enhanced the viscosity enhancement of hybrid nano-lubricant. At highest solid volume fraction and temperature, nano-lubricant viscosity was 171% greater compared to pure 20W50. Existed models lack the ability to predict the hybrid nano-lubricant viscosity. Thus, a new correlation regarding solid volume fraction and temperature was suggested with R-squared of 0.9943.

关键词: Hybrid nano-lubricant, Dynamic viscosity, Temperature, Solid volume fraction, New correlation

Abstract: In current research, MWCNT-SiO₂/oil hybrid nano-lubricant viscosity is experimentally examined. By dispersing 0.05%, 0.1%, 0.2%, 0.4%, 0.8% and 1% volume of MWCNTs and SiO₂ nanoparticle into the engine oil SAE 20W50, the temperature and solid volume fraction consequences were studied. At 40 to 100℃ temperature, the viscosities were assessed. The results indicated Newtonian behavior for the hybrid nano-lubricant. Moreover, solid volume fraction augmentation and temperature enhanced the viscosity enhancement of hybrid nano-lubricant. At highest solid volume fraction and temperature, nano-lubricant viscosity was 171% greater compared to pure 20W50. Existed models lack the ability to predict the hybrid nano-lubricant viscosity. Thus, a new correlation regarding solid volume fraction and temperature was suggested with R-squared of 0.9943.

Key words: Hybrid nano-lubricant, Dynamic viscosity, Temperature, Solid volume fraction, New correlation

Kazem Motahari, Mohammad Abdollahi Moghaddam, Mojtaba Moradian. Experimental investigation and development of new correlation for influences of temperature and concentration on dynamic viscosity of MWCNT-SiO₂ (20-80)/20W50 hybrid nano-lubricant[J]. Chinese Journal of Chemical Engineering, 2018, 26(1): 152-158.

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Experimental investigation and development of new correlation for influences of temperature and concentration on dynamic viscosity of MWCNT-SiO₂ (20-80)/20W50 hybrid nano-lubricant

Experimental investigation and development of new correlation for influences of temperature and concentration on dynamic viscosity of MWCNT-SiO₂ (20-80)/20W50 hybrid nano-lubricant

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