球晶成長したポリ乳酸の絶縁破壊特性

• 松ヶ崎 成

  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

書誌事項

タイトル別名

• Dielectric Breakdown Properties of Poly-Lactic Acid with Spherulites Growth
• キュウショウ セイチョウ シタ ポリ ニュウサン ノ ゼツエン ハカイ トクセイ

抄録

Polylactic acid (PLA) is a bioplastic and a biomass material that is made from corn starch, etc. Having studied the potential of PLA as an electrical insulation material, the authors have demonstrated that PLA has high resistivity, high dielectric breakdown strength and other outstanding electrical insulation properties equivalent to those of low-density polyethylene (LDPE) and other petroleum-based plastics within a temperature range from room temperature to approximately 70°C. The degree of crystallinity of PLA was increased by heat treatment, and the dielectric breakdown strength (E_B) and mechanical properties of the obtained PLA of different spherulite sizes were studied. PLA heat-treated at a temperature of 120°C or higher showed rapid increases in spherulite size. At both measurement temperatures of 25°C and 80°C, the E_B showed rapid falls when the heat treatment temperature was 120°C or higher. At a measurement temperature of 25°C, the tensile strength at break and breaking elongation showed rapid falls when the heat treatment temperature was 120°C or higher.

収録刊行物

• 電気学会論文誌．　Ａ

  電気学会論文誌．　Ａ 134 (4), 237-242, 2014

  一般社団法人 電気学会

キーワード

• バイオプラスチック
• ポリ乳酸
• 絶縁破壊特性
• 機械的特性
• 球晶

詳細情報

• CRID: 1390001204598476544
• NII論文ID: 130003391565
• NII書誌ID: AN10136312
• DOI: 10.1541/ieejfms.134.237
• ISSN: 13475533
• ISSN: 03854205
• NDL書誌ID: 025468537
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025468537
• Web Site: https://www.jstage.jst.go.jp/article/ieejfms/134/4/134_237/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可