Gaia Kravanja (Avtor), Inna A. Belyaeva (Avtor), Luka Hribar (Avtor), Irena Drevenšek Olenik (Avtor), Mikhail Shamonin (Avtor), Matija Jezeršek (Avtor)

Povzetek

A simple method for structuring of the surface of a magnetoactive elastomer (MAE) on the tens of micrometers scale, which capabilities extend beyond conventional mold-based polymer casting, is reported. The method relies on the ablation of the material by absorption of nanosecond infrared pulses from a commercial laser. It is shown that it is possible to fabricate parallel lamellar structures with a high aspect ratio (up to 6:1) as well as structures with complex scanning trajectories. The method is fast (fabrication time for the 7 × 7 mm$^2$ is about 60 s), and the results are highly reproducible. To illustrate the capabilities of the fabrication method, both orthogonal to the MAE surface and tilted lamellar structures are fabricated. These magnetosensitive lamellae can be easily bent by ±45° using an external magnetic field of about 230 mT. It is demonstrated that this bending allows one to control the sliding angle of water droplets in a great range between a sticky (>90°) and a sliding state (<20°). Perspectives on employing this fabrication technology for magnetosensitive smart surfaces in microfluidic devices and soft robotics are discussed.

Ključne besede

magnetoaktivni elastomeri;omočljivost;lasersko strukturiranje;magnetoactive elastomers;wettability;laser structuring;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 620.3
COBISS: 81234691 Povezava se bo odprla v novem oknu
ISSN: 2365-709X
Št. ogledov: 19
Št. prenosov: 4
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: magnetoaktivni elastomeri;omočljivost;lasersko strukturiranje;
Vrsta dela (COBISS): Članek v reviji
Strani: 8 str.
Letnik: ǂVol. ǂ7
Zvezek: ǂart. no. ǂ2101045
Čas izdaje: May 2022
DOI: 10.1002/admt.202101045
ID: 18670123