著者

今井 隆浩 澤 史雄 尾崎 多文 中野 俊之 清水 敏夫 吉満 哲夫

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society (ISSN:03854205)

巻号頁・発行日

vol.124, no.11, pp.1065-1072, 2004-11-01

被引用文献数

12 16

---

Recent rapid progress in nanotechnology has focused research and development efforts on new high performance materials. Organic-inorganic hybrid materials such as nylon-layered silicate nanocomposites have attracted special interest and various studies continue to be conducted on thermoplastic resins.<br>In this study, we found out the best organic modifier of layered silicate that contributed to an affinity for epoxy resin (thermosetting resin), and succeeded in creating an intercalated-type epoxy-layered silicate nanocomposite. This nanocomposite realized some improvements by the addition of 5 or 6 weight percentage of organically modified layered silicates, which have 20^oC higher thermal resistance, 60% higher fracture toughness, 19% higher flexural strength and 10% higher insulation breakdown strength than these of an epoxy resin without layered silicate fillers. An electrical treeing growth was observed in the nanocomposite. The electrical treeing progress with many branches in the nanocomposite seemed to result in an increase in the insulation breakdown strength. These results suggest the possibility of practical use as an insulating material in heavy apparatuses.