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Ionic Grease Lubricants: Protic [Triethanolamine][Oleic acid] and Aprotic [Choline][Oleic acid]
State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Intelligent Composites Laboratory, Department of Chemical and Biomolecular Engineering, The University of Akron.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-6085-7880
Intelligent Composites Laboratory, Department of Chemical and Biomolecular Engineering, The University of Akron.
Department of Chemical and Biomolecular Engineering, The University of Akron.
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2016 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 8, no 7, p. 4977-4984Article in journal (Refereed) Published
Abstract [en]

Ionic liquid lubricants or lubricant additives have been studied intensively over past decades. However, ionic grease serving as lubricant has rarely been investigated so far. In this work, novel protic [Triethanolamine][Oleic acid] and aprotic [Choline][Oleic acid] ionic greases are successfully synthesized. These ionic greases can be directly used as lubricants without adding thickener or other additives. Their distinct thermal and rheological properties are investigated and well correlated to their tribological properties. It is revealed that aprotic ionic grease shows superior temperature and pressure tolerant lubrication properties than protic ionic grease. The lubrication mechanism is studies and it reveals that strong physical adsorption of ionic grease onto friction surface plays a dominating role for promoted lubrication instead of tribo-chemical film formation.

Place, publisher, year, edition, pages
2016. Vol. 8, no 7, p. 4977-4984
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-3439DOI: 10.1021/acsami.5b12261ISI: 000371105800082PubMedID: 26815603Scopus ID: 2-s2.0-84962623222Local ID: 143c6676-230f-43f8-b149-ac909d6fdf8cOAI: oai:DiVA.org:ltu-3439DiVA, id: diva2:976297
Note
Validerad; 2016; Nivå 2; 20160201 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Shi, Yijun

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