熱処理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: 2011/05/01

タイトル(英語): Electrical Properties of Heat-Treated Poly-Lactic Acid

著者名: 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），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），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): Toru Oi (Hachinohe Institute of Technology), Katsuyoshi Shinyama (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，電気的特性　　bioplastics，poly-lactic acid，electrical characteristics

要約(英語): Poly-lactic acid (PLA), a biodegradable plastic, has excellent electrical insulation properties at temperatures ranging from room temperature to around 70℃. At temperatures higher than 70℃, however, the insulation performance of PLA deteriorates due to its poor heat resistance. In this study, PLA was heat-treated at 100℃ to endow it with greater heat resistance, and the effects that this heat treatment had on the electrical properties of PLA were investigated. Before being subjected to heat treatment, crystallinity (xc) of PLA was about 6%. After the heat treatment was begun, xc increased in proportion to the heat treatment time, such that measurements revealed that xc had increased to about 42% by the time 15 minutes had passed since the start of the heat treatment. The temperature dependence of the insulation breakdown strength (EB) of heat-treated PLA was investigated, and it was found that EB of heat-treated PLA (PLA-A) decreases at a more moderate rate at temperatures higher than 60℃.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.131 No.5 （2011） 特集：光源・照明の新潮流

本誌掲載ページ: 395-400 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/131/5/131_5_395/_article/-char/ja/