Effects of isothermal crystallization on fracture toughness and crack growth behavior of poly (lactic acid)

Sang Dae Park, Mitsugu Todo, Kazuo Arakawa

研究成果: ジャーナルへの寄稿学術誌査読

38 被引用数 (Scopus)

抄録

A study to characterize the effect of isothermal crystallization on the mode I fracture toughness of polylactic acid (PLA) solids was discussed. An amorphous and six crystallined PLA plates were prepared by quenching and annealing and their crystalline structures were characterized by polarizing optical microscopy (POM). The thermal properties of these six PLA plates were measured by a differential scanning calorimetry (DSC). Mode I fracture toughness was estimated at a quasi-static loading rate and then correlated with the crack growth behavior characterized by POM. A unique dependence of crystallinity on KIC was found and the change of KIC was closely related to the changes of microstructure and crack growth behavior.

本文言語英語
ページ(範囲)1055-1058
ページ数4
ジャーナルJournal of Materials Science
40
4
DOI
出版ステータス出版済み - 2月 1 2005

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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