Spreading Behavior of Oil on Hierarchical Microstructured PET Surfaces Fabricated Using Hot-Embossing Combined with Laser-Based Methods
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
In this study, the wetting behavior of microstructured polyethylene terephthalate (PET) foils for polar and nonpolar liquids produced by plate-to-plate hot embossing is investigated. For the embossing step, stainless steel plates are used as stamps, which are microstructured with single-scaled and hierarchical textures using direct laser writing and two-beam direct laser interference patterning. The imprinted microstructures, containing pillar- and line-like textures, show increased water contact angles combined with a superoleophilic behavior. Time-resolved measurements reveal that oil droplets spread rapidly on the hierarchical textures with velocities of up to 1.4 mm(2) s(-1). This functionalization of PET foils creates new opportunities for a wide range of industrial applications, such as the use of oil-based instead of solvent-based paints, an improved distribution of lubricants in mechanical components or for oil-water separation in maritime surroundings.
Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 2202410 |
| Seitenumfang | 11 |
| Fachzeitschrift | Advanced materials interfaces |
| Jahrgang | 10 |
| Ausgabenummer | 13 |
| Frühes Online-Datum | Apr. 2023 |
| Publikationsstatus | Veröffentlicht - Mai 2023 |
| Peer-Review-Status | Ja |
Externe IDs
| Scopus | 85151417767 |
|---|---|
| ORCID | /0000-0003-4333-4636/work/196675390 |
Schlagworte
Schlagwörter
- Direct laser interference patterning, Direct laser writing, Hierarchical structures, Hot embossing, Oil spreading, Polyethylene terephthalate, Stainless steel