Probing the Nanostructure and Reactivity of Epoxy–Amine Interphases
Suzanne Morsch, Yanwen Liu, Kieran Harris, Flor R Siperstein, Claudio Di Lullo, Peter Visser, Stuart Lyon · 2024
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Description
Suzanne Morsch and co-authors probe the thin boundary layer where epoxy glue meets a surface, in a 2024 study. This interphase is thought to be the weak point of many coatings and composites, yet it is buried and too thin for standard tools. The team mix computer simulation with a nano-scale infrared mapping method to see it at last.
They use iron oxide powders as test surfaces in a common epoxy system. The amine hardener binds to the three oxides with strength from repelled to locked fast, and that binding sets how much hardener stays free in the bulk. Near every particle, though, both glue parts pile up in excess, and the layer stays undercured even after extra heating. Simulations show loose ingredients drift apart as the glue sets, which explains the soft skin around each grain.
Catalog record
| CREATOR | Suzanne Morsch, Yanwen Liu, Kieran Harris, Flor R Siperstein, Claudio Di Lullo, Peter Visser, Stuart Lyon |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 39 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |