Preparation and properties of UV-curable fluorinated polyurethane acrylates containing crosslinkable vinyl methacrylate for antifouling coatings

• Published in: Journal of applied polymer science Vol. 132; no. 26; pp. np - n/a
• Main Authors: Jeon, Jae-Hwan, Park, Young-Gwang, Lee, Young-Hee, Lee, Dong-Jin, Kim, Han-Do
• Format: Journal Article
• Language: English
• Published: Hoboken Blackwell Publishing Ltd 10.07.2015; Wiley Subscription Services, Inc
• Subjects: Acrylates; Antifouling coatings; coatings; Contact; Crosslinking; Iodides; Materials science; Optimization; PFA; Polymers; Polymethyl methacrylates; Polyurethane resins; polyurethanes; properties and characterization; surfaces and interfaces
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.42168

ABSTRACT To obtain highly effective antifouling coatings, a series of UV‐curable polyurethane acrylates containing diluents [heptadecafluorodecyl methacrylate (PFA, 6 wt %)/isobornyl acrylate (IBOA, 34 wt %)/methyl methacrylate (MMA, 20‐5 wt %)/vinyl methacrylate (VMA, 0–15 wt %)] were prepared. This study examined the effect of bulky MMA (20‐5 wt %)/crosslinkable VMA (0–15 wt %) weight ratio on the properties of the UV‐curable polyurethane acrylates. The fluorine concentration in UV‐cured film surface increased with increasing VMA content up to 9 wt % and then decreased. The Tgα, transparency, elasticity, and mechanical properties of the UV‐cured film samples increased with increasing VMA content. The water/methylene iodide contact angles and surface tension of samples increased from 107/79 to 121/91° and decreased from 17.8 to 12.7 mN/m with increasing VMA content up to 9 wt % and then decreased/increased, respectively. From these results, it was found that the optimum VMA content was 9 wt % to obtain a high‐performance antifouling coating. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42168.