Fracture characterization of biodegradable PLLA polymer blends

Mitsugu Todo, Ayako Harada, Hideto Tsuji

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

3 Citations (Scopus)


Biodegradable PLLA was toughened by blending with four different ductile bio-polymers such as PBS, PCL, PBSL and PBSC using a technique of melt-mixing. Mechanical properties were measured and compared to assess their effectiveness as a blending partner for PLLA. It was found that the bending properties are the best with PBS; on the other hand, the mode I fracture toughness and impact resistance are most improved with PBSC. For PLLA/PBSC, FE-SEM observation showed that the fracture surface exhibited ductile fracture with elongated fibrils, and POM result clearly indicated that the largest damage zone is generated in the vicinity of crack-tip, suggesting the highest energy dissipation in the crack-tip region.

Original languageEnglish
Title of host publicationProceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness
Subtitle of host publicationFrom Green Composites to Aerospace"
PublisherInternational Committee on Composite Materials
ISBN (Print)9784931136052
Publication statusPublished - Jan 1 2007

Publication series

NameICCM International Conferences on Composite Materials

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Ceramics and Composites


Dive into the research topics of 'Fracture characterization of biodegradable PLLA polymer blends'. Together they form a unique fingerprint.

Cite this