結晶核剤を添加したポリ乳酸の電気的特性

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2011/06/01

タイトル(英語): Electrical Properties of Poly-Lactic Acid with Nucleating Agent Added

著者名: 信山　克義（八戸工業大学大学院工学研究科電子電気・情報工学専攻），大井　徹（八戸工業大学大学院工学研究科電子電気・情報工学専攻），藤田　成隆（八戸工業大学大学院工学研究科電子電気・情報工学専攻）

著者名(英語): Katsuyoshi Shinyama (Hachinohe Institute of Technology), Toru Oi (Hachinohe Institute of Technology), Shigetaka Fujita (Hachinohe Institute of Technology)

キーワード: バイオプラスチック，ポリ乳酸，結晶核剤，電気的特性　　bioplastics，poly-lactic acid，nucleating agent，electrical properties

要約(英語): We examined electrical properties of polylactic acid (PLA) with nucleating agent added. At that time, nucleating agent was added to PLA was then heat-treated at 100℃ for 30 seconds. The crystallinity of the nucleating agent was added to PLA increased to more than 40%, and its crystallization speed also increased significantly. The temperature dependence of the conductivity (σ) was investigated, the σ of PLA to which nucleating agent had been added showed the tendency to become lower than the σ of PLA to which nucleating agent had not been added in σ at temperatures higher than 60℃. Furthermore, the temperature dependence of the dielectric breakdown strength (EB) was investigated, EB of nucleating agent was added to PLA was around 5.0 MV/cm at a temperature of 25℃. Of particular note was the fact that EB of nucleating agent was added to PLA measured at 100℃ was around 4.7 MV/cm, around 3 times greater than the EB value for PLA to which nucleating agent had not been added. The temperature dependence of the relative dielectric constant (εr′) and the relative dielectric loss factor (εr″) was investigated, the peak dielectric absorption value of εr″ for the PLA to which nucleating agent had been added showed a tendency that lower than that of the PLA to which nucleating agent had not been added.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.131 No.6 （2011） 特集：電気電子絶縁材料システムシンポジウム

本誌掲載ページ: 427-432 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/131/6/131_6_427/_article/-char/ja/