TY - JOUR
T1 - Effect of ultrasonication on lubrication performance of cellulose nano-crystalline (CNC) suspensions as green lubricants
AU - Zakani, Behzad
AU - Entezami, Sohrab
AU - Grecov, Dana
AU - Salem, Hayder
AU - Sedaghat, Ahmad
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/4/15
Y1 - 2022/4/15
N2 - Industrial lubricants are widely introduced to the mechanical systems to reduce the wear and energy losses. With the increasing demand for environmental protection, developing eco-friendly lubricants becomes more crucial. Due to their abundance, biodegradability, non-toxicity, high thermal stability and low cost, cellulose nanocrystals (CNCs) may be an appropriate choice for formulating green lubricants. In this study, using different microstructural and tribological characterization methods, we systematically investigated the effect of ultrasonic treatment on lubrication performance of CNC aqueous suspensions. It was observed that within sonication energy of 4–50 kJ/gCNC, there exists an optimum condition for tribological measurements. In comparison to the unsonicated suspensions, sonicated CNC lubricants could decrease COF (coefficient of friction) and wear by almost 25 and 30% respectively. Results of this study suggest that ultrasonication processing can significantly improve lubrication performance of CNC aqueous suspensions.
AB - Industrial lubricants are widely introduced to the mechanical systems to reduce the wear and energy losses. With the increasing demand for environmental protection, developing eco-friendly lubricants becomes more crucial. Due to their abundance, biodegradability, non-toxicity, high thermal stability and low cost, cellulose nanocrystals (CNCs) may be an appropriate choice for formulating green lubricants. In this study, using different microstructural and tribological characterization methods, we systematically investigated the effect of ultrasonic treatment on lubrication performance of CNC aqueous suspensions. It was observed that within sonication energy of 4–50 kJ/gCNC, there exists an optimum condition for tribological measurements. In comparison to the unsonicated suspensions, sonicated CNC lubricants could decrease COF (coefficient of friction) and wear by almost 25 and 30% respectively. Results of this study suggest that ultrasonication processing can significantly improve lubrication performance of CNC aqueous suspensions.
KW - Cellulose nanocrystals
KW - Lubricant additive
KW - Tribological performance
KW - Ultrasonication
UR - https://www.scopus.com/pages/publications/85122731984
U2 - 10.1016/j.carbpol.2021.119084
DO - 10.1016/j.carbpol.2021.119084
M3 - Article
C2 - 35123737
AN - SCOPUS:85122731984
SN - 0144-8617
VL - 282
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
M1 - 119084
ER -