20.500.12556/RUL-101641 Tunable surface roughness and wettability of a soft magnetoactive elastomer Surface topographical modifications of a soft magnetoactive elastomer (MAE) in response to variable applied magnetic field are investigated. The analysis is performed in situ and is based on optical microscopy, spread optical reflection and optical profilometry measurements. Optical profilometry analysis shows that the responsivity of magnetic field‐induced surface roughness with respect to external magnetic field is in the range of 1 µm/T. A significant hysteresis of surface modifications takes place for increasing and decreasing fields. Investigations of shape of sessile water droplets deposited on the MAE surface reveal that field‐induced topographical modifications affect the contact angle of water at the surface. This effect is reversible and the responsivity to magnetic field is in the range of 20°/T. Despite the increased surface roughness, the apparent contact angle decreases with increasing field, which is attributed to the field‐induced protrusion of hydrophilic microparticles from the surface layer. materials polymers magnetoactive elastomers magnetic properties optical properties materiali polimeri magnetoaktivni elastomeri magnetne lastnosti optične lastnosti true false false Angleški jezik Slovenski jezik Neznano 2018-06-22 08:22:46 2018-06-22 08:22:46 2022-08-14 03:45:32 0000-00-00 00:00:00 2018 0 0 8 str. art. no. 46221 Vol. 135 2018 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2019-01-30 537.6:620.3 0021-8995 10.1002/app.46221 3165284 4730890 RAZ_Glavan_Gasper_i2018.pdf RAZ_Glavan_Gasper_i2018.pdf 1 F7A6AA294582F80DC25D6484D45846C6 7a2eefe35e898aa0302609da35362f409f36c9d0ae9094ea366c16be61f8c00e 57b1b298-a1b5-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=111769 Fakulteta za matematiko in fiziko 0 0 0