Water contact angle
The water contact angle (α) was determined using the sessile drop method, applying distilled water droplets with a volume of 1 – 2 μL. Measurements were conducted using the Drop Shape Analysis (DSA) 20B system from Krüss (Hamburg, Germany) under ambient conditions at approximately 23 °C. For each condition, ten droplets were analyzed on two specimens, with the drops placed on the parallel section of the tensile test specimens.

Abbreviations:
RT	Real Time
ACC	Accelerated aging
	
KW	Contact Angle
SFE	Surface Free Energy
OWRK	Owens–Wendt–Rabel–Kaelble-Modell
