20.500.12556/DiRROS-22754 Breaking free from PFAS biocompatible, durable and high-performance octenyl succinic anhydride (OSA)-modified starch/chitosan coating with ZnO for textile applications The development of textile coatings as alternatives to per- and polyfluoroalkyl substances (PFAS) is a high priority due to global regulatory efforts aiming to phase out PFAS, driven by alarming environmental contamination and significant human health concerns. To address the urgent need for replacements, this research develops a health-friendly hydrophobic coating for two of the most common textile substrates, cotton and polyester. The developed coating, consisting of chitosan matrix and octenyl succinic anhydride-modified starch in synergy with ZnO, achieved water contact angles up to 132°. A successful transition to industrial application provided a translucent and homogeneous hydrophobic protection, without noticeably affecting the material's physical properties. Maintained or improved mechanical properties, supported by FTIR analysis, indicate a benign coating process that provides fiber reinforcement. Durability is demonstrated through multiple washing cycles without decrease in hydrophobicity, and high abrasion resistance (min. 20,000 cycles), winning against its commercial fluorinated counterpart. The water-repellent properties show stability over a longer period of time (min. 230 days). The biodegradability study confirmed the environmental compatibility as the biopolymer coating decomposed in 8 days. Finally, multivariate statistical analysis determined an optimal coating process to ensure effective integration of the newly developed sustainable coating into textile manufacturing processes. chitosan octenyl succinic anhydride modified starch biopolymer hydrophobic coating functional textile Hitozan Oktenil sukcinski anhidrid modificiran škrob biopolimer hidrofobni premaz funkcionalni tekstil true false true Elsevier Angleški jezik Slovenski jezik © 2025 The Authors. Published by Elsevier Ltd. Neznano 2025-06-20 13:11:03 2025-06-20 13:18:40 2025-10-24 03:52:06 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Soavtorji: Blaž Stres, Ivan Jerman, Barbara Golja, Ema Žagar, Vuk Martinović, Petja Logar, Gregor Lavrič, Anže Prašnikar, Blaž Likozar, Uroš Novak, Ana Oberlintner; Opis vira z dne 19. 6. 2025; str. 1-14 [article no.] 104316 Vol. 365 Oct. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-10-01 677 1879-1344 doi.org/10.1016/j.carbpol.2025.123792 238731523 https://www.sciencedirect.com/science/article/pii/S0144861725005752 1 7db165c5-4db6-11f0-bf0a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33028 RAZ_Verbic_Anja_2025.pdf RAZ_Verbic_Anja_2025.pdf 1 2097073BC9CC3728BBB08065314356B9 6dd2c8631cfd08e4f4e5c4bd8f9487aa5ba149aebf828c7a2eddd42352dda4fa 3bd283b6-4db7-11f0-bf0a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33029 Kemijski inštitut 0 0 0