Surface Properties of UV-Heat Cured Films of Organosilicon Modified Epoxy Monoacrylates

doi:10.7517/j.issn.1674-0475.2013.02.005

Abstract

Abstract: A series of UV-heat hybrid curable compositions were prepared by using organosilicon modified epoxy monoacrylates (OMEMA) as resins. The change of absorption peaks of double bond and epoxy group were identified by FTIR spectra during UV-heat curing process. The influence of different kinds and content of active diluents on the gel content, water absorption and water contact angle of UV-heat cured films were investigated. Mass content of Si in surface of UV-heat cured films was tested by the energy dispersive spectrometer(EDS). The gel contents of UV cured films were lower than 86.5%, and the gel contents of UV-heat cured films were about 97%. Compared to the epoxy monoacrylates (EMA) compositions with same active diluents, the water contact angle of UV-heat cured films of OMEMA system was increased from 62.53 to 99.27. The data of EDS testing proved that the Si content of air side of UV-heat cured films was higher than glass side.

Key words: UV-curable, heat-curable, organosilicon, modified, epoxy monoacrylates

CLC Number:

LIU Hong-bo, LIN Feng, XIAO Wang-dong, XU Ling, ZHANG Wu-ying. Surface Properties of UV-Heat Cured Films of Organosilicon Modified Epoxy Monoacrylates[J]. Imaging Science and Photochemistry, 2013, 31(2): 125-131.

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