Breaking free from PFAS : biocompatible, durable and high-performance octenyl succinic anhydride (OSA)-modified starch/chitosan coating with ZnO for textile applications

Verbič, Anja (avtor), Stres, Blaž (avtor), Jerman, Ivan (avtor), Golja, Barbara (avtor), Žagar, Ema (avtor), Martinović, Vuk (avtor), Logar, Petja (avtor), Lavrič, Gregor (avtor), Prašnikar, Anže (avtor), Likozar, Blaž (avtor), Novak, Uroš (avtor), Oberlintner, Ana (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: chitosan, octenyl succinic anhydride, modified starch, biopolymer, hydrophobic coating, functional textile
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: NTF - Naravoslovnotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: 14 str.
• Številčenje: Vol. 365, art. 123792
• PID: 20.500.12556/RUL-181983
• UDK: 677
• ISSN pri članku: 1879-1344
• DOI: 10.1016/j.carbpol.2025.123792
• COBISS.SI-ID: 238731523
• Datum objave v RUL: 21.04.2026

Gradivo je del revije

• Naslov: Carbohydrate polymers
• Skrajšan naslov: Carbohydr. polym.
• Založnik: Elsevier
• ISSN: 1879-1344
• COBISS.SI-ID: 23112709

Licence

• Licenca: CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc/4.0/deed.sl
• Opis: Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: hitozan, oktenil sukcinski anhidrid, modificiran škrob, biopolimer, hidrofobni premaz, funkcionalni tekstil