Hybrid Nanocellulose-Copper (II) Oxide as Engine Oil Additives for Tribological Behavior Improvement

Molecules

Mahendran Samykano¹  Amit Kumar²  Kumaran Kadirgama²  Devarajan Ramasamy²  Sakinah Hisham²  Saidur Rahman³  Hussein A. Mohammed⁴ 

[1] College of Engineering, Mechanical department, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia;Faculty of Engineering Technology Mechanical and Automotive, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia;Research Center for Nano-Materials and Energy Technology (RCNMET), School of Science and Technology, Sunway University, Bandar Sunway, 47500 Petaling Jaya, Selangor, Malaysia;School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup WA 6027, Australia;

关键词: cellulose nanocrystal;    copper (II) oxide;    friction;    wear;   

DOI  :  10.3390/molecules25132975

来源: DOAJ

【 摘 要 】

Friction and wear are the main factors in the failure of the piston in automobile engines. The objective of this work was to improve the tribological behaviour and lubricant properties using hybrid Cellulose Nanocrystal (CNC) and Copper (II) oxide nanoparticles blended with SAE 40 as a base fluid. The two-step method was used in the hybrid nanofluid preparation. Three different concentrations were prepared in a range of 0.1% to 0.5%. Kinematic viscosity and viscosity index were also identified. The friction and wear behavior were evaluated using a tribometer based on ASTM G181. The CNC-CuO nano lubricant shows a significant improvement in term of viscosity index by 44.3–47.12% while for friction, the coefficient of friction (COF) decreases by 1.5%, respectively, during high and low-speed loads (boundary regime), and 30.95% during a high-speed, and low load (mixed regime). The wear morphologies results also show that a smoother surface was obtained after using CNC-CuO nano lubricant compared to SAE 40.

【 授权许可】

Unknown