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Enhanced tribological properties of wind turbine engine oil formulated with flower-shaped MoS2 nano-additives

Abstract : Wind energy has become one of the most viable green and sustainable energy sources. A major concern of this sector is the damage of mechanical components and energy losses caused by repeated friction and wear, which lead to reduced efficiency and increased maintenance costs. The development of new lubricant additives with high anti-wear properties and friction reduction capabilities is of paramount importance to ensure long service life and high efficiency of mechanical devices. Herein, flower-shaped MoS2 nano-additives of about 150 nm were prepared under mild conditions through a hydrothermal process. Octyl- and octadecyltrichlorosilane were used as surface hydrophobization agents to enhance the colloidal stability of MoS2 nano-additives formulations in wind turbine engine oil. Increasing the length of the alkyl chain grafted onto the particles improved the colloidal stability up to at least one year and, more importantly, resulted in the lowest friction and best wear reduction capabilities, as shown by the pin-on-disk tribometer and laboratory wear tests
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Submitted on : Tuesday, November 16, 2021 - 3:45:45 PM
Last modification on : Sunday, June 26, 2022 - 3:19:43 AM
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Mohamed Zoubair Saidi, Chaouki El Moujahid, Andreea Pasc, Nadia Canilho, Clara Delgado-Sanchez, et al.. Enhanced tribological properties of wind turbine engine oil formulated with flower-shaped MoS2 nano-additives. Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier, 2021, 620, pp.126509. ⟨10.1016/j.colsurfa.2021.126509⟩. ⟨hal-03262805⟩



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