Unraveling a Molecular Adhesion Mechanism at Complex Polymer–Metal Interfaces
Lukas Kalchgruber, Michael Hahn, Kai A Schwenzfeier, Martin Rester, Christian Weissensteiner, Laura L E Mears, Markus Valtiner · 2024
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Description
Lukas Kalchgruber and co-authors uncover how polymers stick to stainless steel at the molecular level, in work published in 2024. Clean release of polymer from metal matters in production, where residue ruins parts. Measuring adhesion on rough industrial surfaces is hard because true contact area is uncertain.
The team measured adhesion with a force apparatus adapted for rough samples and probed surface chemistry with X-ray methods. Steel samples had plasma or heat treatments that changed their surface oxide layers. Both treatments made the polymer release more cleanly than the native film. The cause was fewer hydroxide groups on the surface, which form hydrogen bonds with the polymer. Heat cut adhesion most. Forces from density-driven attraction played little role. The study gives industry a chemical lever for release coatings.
Catalog record
| CREATOR | Lukas Kalchgruber, Michael Hahn, Kai A Schwenzfeier, Martin Rester, Christian Weissensteiner, Laura L E Mears, Markus Valtiner |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 39 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |