A selective modification of the surface properties of UV-cured epoxy films was achieved, with an important enhancement of hydrophobicity and scratch resistance, by dispersion on the UV-curable formulations of fluorinated functionalized silica particles. The photopolymeriza- tion process was investigated and the films were fully characterized. Contact angle measurements with water on UV-cured films showed a linear increase of the contact angle of cross-linked films by increasing the functionalized SiO2 content in the photocurable formulation. Also, a consistent and linear improvement of penetration resistance was noted in terms of penetration depth by increasing the fluorinated functionalized silica content.
Hydrophobic Scratch Resistant UV-Cured Epoxy Coating / Sangermano, Marco; Perrot, Alexandre; Gigot, Arnaud; Rivolo, Paola; Pirri, Fabrizio; Messori, Massimo. - In: MACROMOLECULAR MATERIALS AND ENGINEERING. - ISSN 1438-7492. - 301:1(2016), pp. 93-98. [10.1002/mame.201500238]
Hydrophobic Scratch Resistant UV-Cured Epoxy Coating
MESSORI, Massimo
2016
Abstract
A selective modification of the surface properties of UV-cured epoxy films was achieved, with an important enhancement of hydrophobicity and scratch resistance, by dispersion on the UV-curable formulations of fluorinated functionalized silica particles. The photopolymeriza- tion process was investigated and the films were fully characterized. Contact angle measurements with water on UV-cured films showed a linear increase of the contact angle of cross-linked films by increasing the functionalized SiO2 content in the photocurable formulation. Also, a consistent and linear improvement of penetration resistance was noted in terms of penetration depth by increasing the fluorinated functionalized silica content.
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