TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Sfameni, Silvia
A1  - Lawnick, Tim
A1  - Rando, Giulia
A1  - Visco, Annamaria
A1  - Textor, Torsten
A1  - Plutino, Maria Rosaria
T1  - Super-hydrophobicity of polyester fabrics driven by functional sustainable fluorine-free silane-based coatings
JF  - Gels
N2  - Polyester fibers are widely employed in a multitude of sectors and applications from the technical textiles to everyday life thanks to their durability, strength, and flexibility. Despite these advantages, polyester lacks in dyeability, adhesion of coating, hydrophilicity, and it is characterized by a low wettability respect to natural fibers. On this regard, beyond the harmful hydrophobic textile finishings of polyester fabrics containing fluorine-compounds, and in order to avoid pre-treatments, such as laser irradiation to improve their surface properties, research is moving towards the development of fluorine-free and safer coatings. In this work, the (3-glycidyloxypropyl)trimethoxysilane (GPTMS) and various long alkyl-chain alkoxysilanes were employed for the fabrication in the presence of a catalyst of a water-based superhydrophobic finishing for polyester fabrics with a simple sol-gel, non-fluorinated, sustainable approach and the dip-pad-dry-cure method. The finished polyester fabrics surface properties were investigated by static and dynamic water repellency tests. Additionally, the resistance to common water-based liquids, abrasion resistance, moisture adsorption, and air permeability measurements were performed. Scanning electron microscopy was employed to examine the micro- and nano-morphology of the functionalized polyester fabrics surfaces. The obtained superhydrophobic finishings displayed high water-based stain resistance as well as good hydrophobicity after different cycles of abrasion.
KW  - sol-gel
KW  - alkoxysilanes
KW  - functional polyester fabrics
KW  - hydrophobicity
KW  - nano-hybrid coatings
Y1  - 2023
UN  - https://nbn-resolving.org/urn:nbn:de:bsz:rt2-opus4-41231
SN  - 2310-2861
SS  - 2310-2861
U6  - https://doi.org/10.3390/gels9020109
DO  - https://doi.org/10.3390/gels9020109
VL  - 9
IS  - 2
SP  - 1
EP  - 17
S1  - 17
PB  - MDPI
CY  - Basel
ER  -