Improvement of fracture energy of HA/PLLA biocomposite material due to press processing

Mitsugu Todo, Takeru Kagawa

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Poly (l-lactic acid) (PLLA) and hydroxyapatite (HA)/PLLA composite plates were processed by press-process method using a hot press at a temperature close to the glass transition temperature of PLLA. Fracture energy was evaluated for the pressed and the control specimens. Fracture surface morphology was also characterized using a field emission scanning electron microscope to investigate the relationship between the microstructure and the fracture property. Single-edge-notch bending (SENB) specimens were fabricated from these pressed and unpressed plates for fracture testing. The press-processed HA/PLLA exhibited strong adhesion between the HA particle and the PLLA matrix. Interfacial strength at the HA/PLLA was effectively improved due to press processing, contributing to the improvement of the fracture energy.

Original languageEnglish
Pages (from-to)799-801
Number of pages3
JournalJournal of Materials Science
Volume43
Issue number2
DOIs
Publication statusPublished - Jan 1 2008

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Fracture energy
Durapatite
Lactic acid
Hydroxyapatite
Lactic Acid
Processing
Fracture testing
Field emission
Surface morphology
Electron microscopes
Adhesion
Scanning
Microstructure
Composite materials

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Improvement of fracture energy of HA/PLLA biocomposite material due to press processing. / Todo, Mitsugu; Kagawa, Takeru.

In: Journal of Materials Science, Vol. 43, No. 2, 01.01.2008, p. 799-801.

Research output: Contribution to journalArticle

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