Data · dataset · 2026
Preparation and Tribological Performances of Polyurea-type Ionic Liquid Water-based Lubrication Additives
Listed in ScienceDB
Compared with oil-based lubricants, water-based lubricant systems possess excellent cooling and flame-retardant properties, offering great application potential in many fields.
Description
However, the highly polar water molecules usually weaken the interactions between water-based lubricant additives and interfaces, thereby hindering the formation of the interfacial adsorption layer and ultimately resulting in poor extreme pressure load-carrying capacity of water-based lubricants.
In this study, a polyurea-type ionic liquid was prepared as a water-based lubricant additive. The hydrogen bonding interactions between urea groups enabled the polymer to form a more stable adsorption layer at the interface. The existence of a large number of hydrogen bonds and tribo-chemical films in the polyurea-type ionic liquid was confirmed by multiple characterization technologies (temperature-dependent FTIR, two-dimensional IR, XPS and QCM-D).
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By comparing the effects of small molecule ionic liquids and polyurea units with different rigidity on the tribological performances of water-based lubricants, it was proved that the synergistic effect of multiple non-covalent interactions (hydrogen bonding, electrostatic interactions and hydrophobic effects) in polyurea ionic liquids can significantly improve the anti-friction, anti-wear performance, and extreme pressure load-carrying capacity of the water-based lubrication system.
The final polyurea-based ionic liquid achieved a coefficient of friction as low as 0.12 and an extreme pressure capacity up to 1000 N at a concentration of 2%, while the corrosion to metals was significantly reduced.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.39876 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Chemistry · Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.39876 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:chemistry | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license_text | source · scidb cn | connector:scidb_cn@1.0.0 | |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |