Titolo | Fabrication of three-dimensional micropatterned hydrophobic surfaces by fused filament fabrication printing technology |
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Tipo di pubblicazione | Articolo su Rivista peer-reviewed |
Anno di Pubblicazione | 2024 |
Autori | Galvagno, Sergio, Tammaro Loredana, Portofino Sabrina, Loffredo Fausta, De Girolamo Del Mauro Anna, Villani Fulvia, Pandolfi G., Iovane Pierpaolo, Tassini Paolo, and Borriello Carmela |
Rivista | Applied Research |
Type of Article | Article |
ISSN | 27024288 |
Abstract | In recent years, the interest in structured hydrophobic surfaces has considerably grown, finding applications in many industrial fields, including aerospace, automotive, and biomedical. Three-dimensional (3D) printing technology is a simple, rapid, and economic process to fabricate structured surfaces based on neat polymers and composite materials, allowing working with a wide variety of plastic materials. The manufactured surfaces show a roughness depending on the printing design and the printing resolution: this characteristic is ideal to achieve superhydrophobic properties. Furthermore, patterned surface structures can be printed by fused filament fabrication (FFF), so increasing the hydrophobic character of the samples; indeed, micro- and nanosurface structures are required to make a hydrophobic surface. In this study, 3D micropatterned textures of pillars were printed by FFF using polylactide (PLA) and polypropylene (PP) as polymer filaments and PLA/carbon nanotubes (PLA/CNTs) and PP/carbon fibers (PP/CF) as composite filaments. Morphologies of printed specimens were analyzed by optical microscopy and scanning electron microscopy. Good correspondence was found between pillar dimensions and edge-edge pillars distance of computer aided design (CAD) and composites 3D-printed samples. Their wettability was evaluated by static contact angle (CA) measurements. Results clearly show a significant increase of water CA values up to 50% in all micropatterned samples with respect to flat surfaces. This improvement was achieved by surface microstructuring without the use of nanoparticles and/or chemical treatment. © 2024 Wiley-VCH GmbH. |
Note | Cited by: 0 |
URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85194862056&doi=10.1002%2fappl.202400003&partnerID=40&md5=9bdca60e0748e3d1f043b58db48d11cf |
DOI | 10.1002/appl.202400003 |
Citation Key | Galvagno2024 |