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Home  > Raw materials & technologies  > Applications  > Protective & Marine coatings  > Obtaining highly effective antifouling coa...

Tuesday, 24 September 2019
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Raw materials & technologies, Applications, Protective & Marine coatings

Obtaining highly effective antifouling coatings

Thursday, 26 March 2015

Researchers studied the preparation and properties of UV-curable fluorinated polyurethane acrylates containing crosslinkable vinyl methacrylate for antifouling coatings.

It was found that the optimum VMA content was 9 wt % to obtain a high-performance antifouling coating. Source: Olivier Le Moal/Fotolia

It was found that the optimum VMA content was 9 wt % to obtain a high-performance antifouling coating. Source: Olivier Le Moal/Fotolia

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.

Optimum VMA content was 9 wt %

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 T, 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.

The study was pubsihed in: Journal of Applied Polymer Science, early view.

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