Icephobic characteristics of organically functionalized silica surfaces
Küçük Resim Yok
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The current study aims to develop a non-fluorinated, silica surface to enhance anti-icing behavior. For this purpose, two strategies namely Co-condensation (CC) and Seed growth (SG) were investigated within the one-step sol-gel synthesis. In order to achieve hydrophobicity, organofunctional silanes specifically vinyltrimethoxysilane (VTMS) and polydimethylsiloxane (PDMS) were utilized along with tetraethylorthosilicate (TEOS) as silica precursors. Hydrophilic SiO2 nanoparticle was also preferred for the SG strategy. The ratio of silica precursors in sol composition and heat treatment were investigated as synthesis parameters. The evaluation of structural, morphological, and topological changes was carried out by FTIR, SEM, AFM, and contact angle measurements. Additionally, the anti-icing behavior of the developed silica surface was investigated by ice adhesion pull-off tests. The thermal conductivity measurements were also conducted on selected silica surfaces. The curing process, applied to CC-series samples led to notable improvements in contact angle values (99°–135°) with low ice-adhesion forces (56–125 kPa). In the SG-series, the incorporation of SiO2 nanoparticles, on the other hand, did not cause a noticeable change in the obtained contact angle values. Nevertheless, all SG-series samples exhibited enhanced hydrophobic characteristics (contact angle: 119–146° and sliding angle <10°). The sample NP0.5-T1V1P1 from SG-series demonstrated promising characteristics for anti-icing applications due to their extremely low adhesion strength (18 kPa) and low thermal conductivity (0.1231 W/mK) values. Graphical Abstract: [Figure not available: see fulltext.] © 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
Açıklama
Anahtar Kelimeler
Functionalization, Hydrophobicity, Icephobicity, Non-fluorinated coatings, Silica coating, Adhesion, Coatings, Hydrophobicity, Ice, Polydimethylsiloxane, Silanes, Silica nanoparticles, Silicon, Silicones, SiO2 nanoparticles, Sol-gel process, Sol-gels, Thermal conductivity, Anti-icing, Co-condensation, Fluorinated coating, Functionalizations, Icephobicity, Non-fluorinated coating, Seed growths, Silica precursors, Silica surface, Silica-coating, Contact angle
Kaynak
Journal of Sol-Gel Science and Technology
WoS Q Değeri
Scopus Q Değeri
Q2
