Preparation of Microcapsules Containing Water Phase as a Core Material by Using UV–curable Resin – Effect of Surfactants on Stability of W/O Emulsion –

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  • UV硬化樹脂による水包含マイクロカプセル調製－界面活性剤が（W/O）分散の安定性に及ぼす影響－
  • UV コウカ ジュシ ニ ヨル ミズ ホウガン マイクロカプセル チョウセイ カイメン カッセイザイ ガ W O ブンサン ノ アンテイセイ ニ オヨボス エイキョウ

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Abstract

We have tried to prepare microcapsules containing water phase as a core material by using UV–curable resin and by utilizing the (W/O)/W dispersion. A merit of microencapsulation using UV curable resin is to shorten the time required to prepare microcapsules. In this preparation method, stability of the (W/O) dispersion in the (W/O)/W dispersion is very important, because inner water droplets coalesce and are removed from the microcapsules. In the experiment, water vapor permeability of model film made of UV–curable resin was estimated and the effect of oil soluble surfactant species on stability of the (W/O) dispersion was investigated. It was found out that model film made of monomer C (DCP–A) resulted in the lowest permeability for water vapor and the surfactant with HLB of 0.3 made the (W/O) dispersion more stable. As a result, we were able to prepare microcapsules containing water phase by using UV curable resin.

Journal

  • MEMBRANE

    MEMBRANE 35 (3), 146-152, 2010

    THE MEMBRANE SOCIETY OF JAPAN

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