TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Sfameni, Silvia
A1  - Lawnick, Tim
A1  - Rando, Giulia
A1  - Visco, Annamaria
A1  - Textor, Torsten
A1  - Plutino, Maria
T1  - Functional silane-based nanohybrid materials for the development of hydrophobic and water-based stain resistant cotton fabrics coatings
JF  - Nanomaterials
N2  - The textile-finishing industry, is one of the main sources of persistent organic pollutants in water; in this regard, it is necessary to develop and employ new sustainable approaches for fabric finishing and treatment. This research study shows the development of an efficient and eco-friendly procedure to form highly hydrophobic surfaces on cotton fabrics using different modified silica sols. In particular, the formation of highly hydrophobic surfaces on cotton fabrics was studied by using a two-step treatment procedure, i.e., first applying a hybrid silica sol obtained by hydrolysis and subsequent condensation of (3-Glycidyloxypropyl) trimethoxy silane with different alkyl(trialkoxy) silane under acid conditions, and then applying hydrolyzed hexadecyltrimethoxysilane on the treated fabrics to further improve the fabrics’ hydrophobicity. The treated cotton fabrics showed excellent water repellency with a water contact angle above 150◦ under optimum treatment conditions. The cooperative action of rough surface structure due to the silica sol nanoparticles and the low surface energy caused by long-chain alkyl(trialkoxy)silane in the nanocomposite coating, combined with the expected roughness on microscale due to the fabrics and fiber structure, provided the treated cotton fabrics with excellent, almost super, hydrophobicity and water-based stain resistance in an eco-sustainable way.
KW  - sol-gel
KW  - (3-Glycidyloxypropyl)trimethoxy silane
KW  - functional cotton fabrics
KW  - hydrophobicity
KW  - nanohybrid coatings
KW  - textile finishing
KW  - nanosols
Y1  - 2022
UN  - https://nbn-resolving.org/urn:nbn:de:bsz:rt2-opus4-38236
SN  - 2079-4991
SS  - 2079-4991
U6  - https://doi.org/10.3390/nano12193404
DO  - https://doi.org/10.3390/nano12193404
VL  - 2022
IS  - 12
SP  - 1
EP  - 22
S1  - 22
PB  - MDPI
CY  - Basel
ER  -