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

作者：Arimitsu Koji; Sugioka Saori; Watanabe Koji; Furutani Masahiro

来源：Progress in Organic Coatings, 2017, 113: 185-188.

DOI：10.1016/j.porgcoat.2017.09.006

• Anionic UV curing
• Epoxy resin
• Dispersed scaly silica
• Base-amplifying group

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 (1.4 wt% toward SS) was prepared, and anionic UV curing of an epoxy resin containing 100 wt% of chemically-modified SS was achieved after 5000 mJ/cm(2) of light irradiation at a wavelength of 365 nm and subsequent heating at 160 C for 30 min. 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.

• 出版日期2017-12