UV-LED as a New Emerging Tool for Curable Polyurethane Acrylate Hydrophobic Coating

The elimination of mercury, low energy consumption, and heat make the ultraviolet light-emitting diode (UV-LED) system emerge as a promising alternative to conventional UV-mercury radiation coating. Hence, series hydrophobic coatings based on urethane acrylate oligomer fluorinated monomer via UV-LED photopolymerisation was designed in this paper. presence fluorine component at 1160 cm−1, 1235 1296 cm−1 confirmed by Fourier Transform Infra-Red spectroscopy. A considerably high degree C=C conversion (96–98%) gel fraction (95–93%) verified application new technique It is well-accepted that can change surface wettability water contact angle coating evolved from 88.4° 121.2°, which, turn, reduced its free 70.5%. hydrophobicity governed migration validated scanning electron atomic force microscopies. However, above 4 phr monomer, transparency cured examined UV-visible spectroscopy experienced approximately 16% reduction. In summary, utilisation great initiative develop green aspect photopolymerisation, particularly technology.