Studying the Effects of UV Radiation on the Surface Properties of Polydopamine-based Coatings

This study investigates the effect of UV radiation on the kinetics of dopamine polymerization, aiming to reduce the coating formation time. Under normal conditions, dopamine polymerization requires ۲۴ hours to complete and form a coating on the substrate. This research demonstrates that UV radiation significantly reduces this time to ۳ hours. The study includes a comparative analysis between samples exposed to UV for ۳ hours and similar samples maintained in darkness. The results show that UV exposure accelerates dopamine polymerization, leading to higher light absorption intensities. Furthermore, coatings applied under UV radiation exhibited increased hydrophilicity and a darker appearance on the substrate compared to those formed in darkness, as assessed through water contact angle measurements and colorimetric analysis. These results indicate the potential for practical applications in various fields. These findings suggest that UV radiation not only substantially decreases polymerization time but also enhances the surface characteristics of the coatings.

کلیدواژه ها:

Polydopamine ، Coating ، UV Radiation ، Surface Properties ، Contact Angle