Work

Tribological properties of amidoxime-based protic ionic liquids as lubricant additives for PAO10

Year: 2025

Type: article

Abstract: Protic ionic liquids (PILs) have been emphasized in recent years owing to their convenient synthesis routines and outstanding lubricity properties. In this work, amidoxime-based PILs were investigated as additives in PAO10. The tribological tests demonstrated that these newly synthesized PILs could highly improve the friction-reducing, anti-wear, variable-frequency and load-carrying capacity properties of PAO10. The results of contact angle, ECR, SEM-EDS and XPS analysis revealed that the tribofilm consisted of a physical absorption layer containing organic carbonaceous species and a tribochemical film containing Fe 2 O 3 , which is responsible for the significant improvement of tribological performances of PAO10. • Cation-functionalized amidoxime-based PILs used as lubricant additives in POA10. • PAO10 with 1 % amidoxime-based PILs maximally reduces friction by 63 % and wear by 93 %. • Electrostatic/coordination/tribochemical effects jointly generate the tribofilm.

Source: Results in Surfaces and Interfaces

DOI: 10.1016/j.rsurfi.2025.100519

Authors: Zijing Bai, Yumeng Wang, Wei Shi, Peng Gao, Zengyun Jian

Institutions: Baoji University of Arts and Sciences, Xi'an Technological University, Yuxi Normal University

Language: English

Topic: Lubricants and Their Additives

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,190

Funders: National Natural Science Foundation of China, Baoji University of Arts And Sciences, Natural Science Foundation of Shaanxi Province, Fundamental Research Funds for the Central Universities