高分子材料　ＲＴＶシリコーン変性エポキシ樹脂系の強じん性に対するシリコーン系グラフト共重合体の添加の効果

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書誌事項

タイトル別名
  • Minor Special Issue of Polymeric Materials. Effect of the Addition of Silicone Graft Copolymers on Toughness of Cured Epoxy Resin Modified with RTV-Silicone.
  • RTV シリコーン ヘンセイ エポキシ ジュシケイ ノ キョウジンセイ ニ タ

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説明

An attempt was made to disperse stably RTV-silicone as fine particles in bisphenil-A type epoxy resin by the addition of silicone-methyl methacrylate graft copolymer. The size of the silicone phase decreased to lower than 1μm with the addition of the graft copolymer. The toughness of the modified resin increased with a decrease in the diameter of silicone phase. In the region where the diameter of the dispersed phase was less than 1μm, the fracture toughness of the modified system became higher than that of the unmodified system. It is suggested that the toughening of the modified system is mainly caused by the cavitation of the fine rubber phases.

収録刊行物

  • 材料

    材料 43 (495), 1513-1519, 1994

    公益社団法人 日本材料学会

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