3 years ago

Anionic UV curing of epoxy resins containing dispersed scaly silica modified with base-amplifying groups

Anionic UV curing of epoxy resins containing dispersed scaly silica modified with base-amplifying groups
A cured organic-inorganic composite material where scaly silica (SS) was well-dispersed has been successfully fabricated with a tetrafunctional epoxy resin and chemically-modified SS through an effective anionic UV-curing system using base proliferation reactions. SS chemically-modified with base-amplifying groups (1.4wt% toward SS) was prepared, and anionic UV curing of an epoxy resin containing 100wt% of chemically-modified SS was achieved after 5000mJ/cm2 of light irradiation at a wavelength of 365nm and subsequent heating at 160°C for 30min. It was found by scanning electron microscopic study that the chemically-modified SS was well dispersed in the UV-cured film, and that unmodified SS was found to be aggregated.

Publisher URL: www.sciencedirect.com/science

DOI: S0300944017304952

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