Enhancing Lubrication Performance of Plastic Oil Lubricant with Oleic Acid-Functionalized Graphene Nanoplatelets and Hexagonal Boron Nitride Solid Lubricant Additives

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2024-07-10 DOI:10.3390/lubricants12070251

Soumya Sikdar, P. L. Menezes

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Abstract

The study explored the viability of using waste plastic oil (PO) as an alternative lubricant to petroleum-based lubricants in industrial settings. To enhance the lubrication performance of the PO, this study incorporated cost-efficient, oleic acid-modified, graphene nano platelets [GNP (f)] and hexagonal boron nitride [hBN (f)] nano solid lubricant additives into the PO in various concentrations, forming functionalized nano lubricants. The PO and its functionalized nano lubricant’s rheological, dispersion stability, thermal degradation, friction, and wear performance were investigated. Results manifest that incorporating GNP (f) and hBN (f) into the PO significantly enhanced the viscosity and dispersion stability. In addition, it was seen that GNP (f) and hBN (f) nano lubricants lowered the coefficient of friction (COF) by 53% and 63.63% respectively, compared to the PO. However, the GNP (f) and hBN (f) nano lubricants demonstrated a 3.16% decrease and a 50.08% increase in wear volume relative to the PO. Overall, the GNP (f) and hBN (f) nano lubricants displayed a synergistic friction behavior, while they exhibited an antagonistic behavior pertaining to the wear volume. The study elucidated the mechanisms underlying friction and wear performance of the nano lubricants.

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用油酸功能化石墨烯纳米片和六方氮化硼固体润滑油添加剂提高塑料油润滑油的润滑性能

本研究探讨了在工业环境中使用废塑料油（PO）作为石油基润滑油的替代润滑油的可行性。为了提高废塑料油的润滑性能，本研究在废塑料油中加入了成本效益高、经油酸改性的石墨烯纳米平板 [GNP (f)] 和六方氮化硼 [hBN (f)] 纳米固体润滑油添加剂，这些添加剂的浓度各不相同，从而形成了功能化纳米润滑油。研究了 PO 及其功能化纳米润滑剂的流变性、分散稳定性、热降解、摩擦和磨损性能。结果表明，在 PO 中加入 GNP (f) 和 hBN (f) 能显著提高粘度和分散稳定性。此外，与 PO 相比，GNP (f) 和 hBN (f) 纳米润滑剂分别将摩擦系数 (COF) 降低了 53% 和 63.63%。不过，与 PO 相比，GNP (f) 和 hBN (f) 纳米润滑剂的磨损量分别减少了 3.16% 和增加了 50.08%。总体而言，GNP（f）和 hBN（f）纳米润滑剂显示出协同摩擦行为，而它们在磨损量方面则表现出拮抗行为。该研究阐明了纳米润滑剂摩擦和磨损性能的内在机理。

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来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico