Improvement of fracture properties of hydroxyapatite particle filled poly(L-lactide)/poly(ε-caprolactone) biocomposites using lysine tri-isocyanate

Tetsuo Takayama, Mitsugu Todo

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Effects of LTI addition on the mode I fracture energy of HA/PLLA/PCL were examined and the microstructural modification due to LTI addition was investigated. Both the mode I energy release rate, Gin, and averaged fracture energy, Ef, are improved dramatically due to LTI addition. The reason is considered to be the improvements of the interfacial structure connecting HA particles with PLLA/PCL matrix and the miscibility between PLLA and PCL. These changes of blend morphology and interfacial structure reduce the stress concentration and lead to the ductile deformation and resulted in the increase of those fracture properties.

Original languageEnglish
Pages (from-to)6266-6270
Number of pages5
JournalJournal of Materials Science
Volume45
Issue number22
DOIs
Publication statusPublished - Nov 1 2010

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Fracture energy
Durapatite
Hydroxyapatite
Energy release rate
Stress concentration
Solubility
polycaprolactone
poly(lactide)
lysine triisocyanate

All Science Journal Classification (ASJC) codes

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

Cite this

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title = "Improvement of fracture properties of hydroxyapatite particle filled poly(L-lactide)/poly(ε-caprolactone) biocomposites using lysine tri-isocyanate",
abstract = "Effects of LTI addition on the mode I fracture energy of HA/PLLA/PCL were examined and the microstructural modification due to LTI addition was investigated. Both the mode I energy release rate, Gin, and averaged fracture energy, Ef, are improved dramatically due to LTI addition. The reason is considered to be the improvements of the interfacial structure connecting HA particles with PLLA/PCL matrix and the miscibility between PLLA and PCL. These changes of blend morphology and interfacial structure reduce the stress concentration and lead to the ductile deformation and resulted in the increase of those fracture properties.",
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T1 - Improvement of fracture properties of hydroxyapatite particle filled poly(L-lactide)/poly(ε-caprolactone) biocomposites using lysine tri-isocyanate

AU - Takayama, Tetsuo

AU - Todo, Mitsugu

PY - 2010/11/1

Y1 - 2010/11/1

N2 - Effects of LTI addition on the mode I fracture energy of HA/PLLA/PCL were examined and the microstructural modification due to LTI addition was investigated. Both the mode I energy release rate, Gin, and averaged fracture energy, Ef, are improved dramatically due to LTI addition. The reason is considered to be the improvements of the interfacial structure connecting HA particles with PLLA/PCL matrix and the miscibility between PLLA and PCL. These changes of blend morphology and interfacial structure reduce the stress concentration and lead to the ductile deformation and resulted in the increase of those fracture properties.

AB - Effects of LTI addition on the mode I fracture energy of HA/PLLA/PCL were examined and the microstructural modification due to LTI addition was investigated. Both the mode I energy release rate, Gin, and averaged fracture energy, Ef, are improved dramatically due to LTI addition. The reason is considered to be the improvements of the interfacial structure connecting HA particles with PLLA/PCL matrix and the miscibility between PLLA and PCL. These changes of blend morphology and interfacial structure reduce the stress concentration and lead to the ductile deformation and resulted in the increase of those fracture properties.

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