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Home  > Raw materials & technologies  > Applications  > Protective & Marine coatings  > UV-curable solvent-free antifouling coatin...

Sunday, 15 September 2019
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Raw materials & technologies, Applications, Protective & Marine coatings

UV-curable solvent-free antifouling coating prepared

Friday, 27 April 2012

Phthalazinone-based epoxy methacrylate antifouling can effectively prevent marine organisms attaching for six months.

The new antifouling coating can prevent marine organisms attaching

Source: PicMan -  Fotolia.com

The new antifouling coating can prevent marine organisms attaching

Source: PicMan -  Fotolia.com

A UV-curable solvent-free antifouling coating formulated by a novel epoxy methacrylate-containing phthalazinone moiety with reactive diluents and photoinitiator and non-toxic N-vanillylnonanamide as antifoulant was prepared. First, the basic performance of the cured films obtained was evaluated. The environmentally friendly antifouling coating had good physical properties, with a pencil hardness of above 5H, an adhesion of grade 1, impact strength above 45 cm, and good resistance to alkali and salt but not acid. Then antifouling evaluation was carried out by the leaching rate of antifoulant, and by immersing samples in natural sea water, respectively. The results from the leaching rate of N-vanillylnonanamide from the antifouling coating showed that the release rate of 45 μg/m2 day of the coating with 15 % antifoulant was steady after a slight decrease, and the coating can effectively prevent marine organisms attaching for six months, which was also evidenced by field tests in natural sea water. A paper based on this study appeared in the "Journal of Coatings Technology” and Research, Vol. 9, No. 3 (2012).

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