Effect of functional groups on tribological properties of lubricants and mechanism investigation
نویسندگان
چکیده
Abstract Nine organic compounds were utilized as model lubricants to investigate the impact of functional groups on tribological performances. Nonanoic Acid with carboxyl showed best lubrication properties, and fluid film tribofilm coexistent in its friction test, bringing a low coefficient wear rate. In addition, lubricant corresponded high adsorption energy density theory (DFT) calculations. And forming large surface displayed small rate test. Moreover, energies positively correlated energies. Based experimental results, action mechanism properties was proposed. Various make molecules show different Lubricant are more likely adsorb substrates form vertical monolayer, which can maintain regular molecular brush structure during bring coefficient. may be prone having tribochemical reactions protective tribofilm, leads
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ژورنال
عنوان ژورنال: Friction
سال: 2022
ISSN: ['2223-7690', '2223-7704']
DOI: https://doi.org/10.1007/s40544-022-0630-9