Improvement of the fracture properties of hydroxiapatite micro-particles filled poly(L-lactide) by structural modification

Takeru Kagawa, Mitsugu Todo, Yasuharu Takenoshita, Akira Myoi

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

The effect of press process on the mechanical properties of PLLA and HA/PLLA was investigated. Bending modulus and bending strength were effectively improved by press process. The improvement was more effective in the uniaxial press than in the biaxial press due to higher level of molecular orientation. Mode I fracture energy was evaluated for the materials. FE-SEM observation of the fracture surfaces was also performed to characterize the effects of press process on microscopic deformation and failure behavior. Mode I fracture energy was dramatically improved due to the press process. The primary mechanisms of the improvement are thought to be crevasse-like failure at the interlayers of the layered structure created by press process and improved adhesion between HA particles and PLLA matrix.

元の言語英語
ページ(範囲)341-346
ページ数6
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
55
発行部数5
DOI
出版物ステータス出版済み - 5 1 2008

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Fracture energy
Molecular orientation
Bending strength
Adhesion
Mechanical properties
Scanning electron microscopy
poly(lactide)

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

これを引用

Improvement of the fracture properties of hydroxiapatite micro-particles filled poly(L-lactide) by structural modification. / Kagawa, Takeru; Todo, Mitsugu; Takenoshita, Yasuharu; Myoi, Akira.

:: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 巻 55, 番号 5, 01.05.2008, p. 341-346.

研究成果: ジャーナルへの寄稿記事

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