Characterization of microstructure and compressive deformation behavior of reinforced porous poly(L-lactide)

Joo Eon Park, Mitsugu Todo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Novel reinforcements such as beam, film, and porous frame were developed to improve the mechanical properties of poly(L-lactide) (PLLA) scaffolds. A solid-liquid phase separation method was used to fabricate porous structures such as core portions and porous frame of reinforced scaffolds. The beam and film reinforcements were also fabricated from PLLA pellets by applying the thermal-press technique. In the standard scaffold, the localized deformation was characterized as buckling of the pore structures. On the contrary, the primary microstructural deformation mechanism in the beam and the film reinforced scaffolds was characterized as buckling deformation and interfacial failure of the matrix and the reinforcement respectively. It is also seen that the inner porous structure could maintain the initial structure without local buckling of the pore structure. The compressive mechanical properties of the reinforced scaffolds were dramatically improved by about 2 - 5 times compared to the standard scaffold.

Original languageEnglish
Title of host publicationMulti-Functional Materials and Structures III
Pages303-306
Number of pages4
DOIs
Publication statusPublished - Dec 1 2010
Event3rd International Conference on Multi-Functional Materials and Structures, MFMS 2010 - Jeonju, Korea, Republic of
Duration: Sep 14 2010Sep 18 2010

Publication series

NameAdvanced Materials Research
Volume123-125
ISSN (Print)1022-6680

Other

Other3rd International Conference on Multi-Functional Materials and Structures, MFMS 2010
CountryKorea, Republic of
CityJeonju
Period9/14/109/18/10

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Park, J. E., & Todo, M. (2010). Characterization of microstructure and compressive deformation behavior of reinforced porous poly(L-lactide). In Multi-Functional Materials and Structures III (pp. 303-306). (Advanced Materials Research; Vol. 123-125). https://doi.org/10.4028/www.scientific.net/AMR.123-125.303