Solid / Liquid Interfacial Structures, Surface Forces, and Rheology of Colloidal Dispersions Comprised of Silica Particles Suspended in Liquid Epoxy Resins

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  • Fujisaki Kazuya
    Production Engineering Research Laboratory, Sumitomo Bakelite Co., Ltd.
  • Matsuoka Yuki
    Production Engineering Research Laboratory, Sumitomo Bakelite Co., Ltd.
  • Oota Ken
    Production Engineering Research Laboratory, Sumitomo Bakelite Co., Ltd.
  • Fukasawa Tomonori
    Department of Chemical Engineering, Kyoto University
  • Shinto Hiroyuki
    Department of Chemical Engineering, Kyoto University

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Other Title
  • シリカ粒子－液状エポキシ樹脂分散系の固液界面構造，表面間力およびレオロジー
  • シリカ リュウシ-エキジョウ エポキシ ジュシ ブンサンケイ ノ コエキ カイメン コウゾウ,ヒョウメン カンリョク オヨビ レオロジー

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In the present study, we have investigated the liquid resin composite consisted of an epoxy resin, an epoxy resin curing agent, a filler of silica particles, and a particle surface modifier of silane coupling agent at different temperatures, using atomic force microscopy and rheometry. Particular focus is on the mechanism how interaction forces between the silica surfaces and rheological properties of the liquid resin composite are affected by the silane coupling agent and the temperature. The relationship between the interparticle force and the particulate suspension rheology was discussed at a molecular level.

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