Fracture characterization of biodegradable PLLA polymer blends

Mitsugu Todo, Ayako Harada, Hideto Tsuji

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

Abstract

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: From Green Composites to Aerospace"
Publication statusPublished - 2007
Event16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto, Japan
Duration: Jul 8 2007Jul 13 2007

Other

Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
CountryJapan
CityKyoto
Period7/8/077/13/07

Fingerprint

Biodegradable polymers
Polymer blends
Crack tips
Impact resistance
Ductile fracture
Fracture toughness
Energy dissipation
Polymers
Mechanical properties
Scanning electron microscopy
poly(lactic acid)

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Ceramics and Composites

Cite this

Todo, M., Harada, A., & Tsuji, H. (2007). Fracture characterization of biodegradable PLLA polymer blends. In Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"

Fracture characterization of biodegradable PLLA polymer blends. / Todo, Mitsugu; Harada, Ayako; Tsuji, Hideto.

Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". 2007.

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

Todo, M, Harada, A & Tsuji, H 2007, Fracture characterization of biodegradable PLLA polymer blends. in Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace", Kyoto, Japan, 7/8/07.
Todo M, Harada A, Tsuji H. Fracture characterization of biodegradable PLLA polymer blends. In Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". 2007
Todo, Mitsugu ; Harada, Ayako ; Tsuji, Hideto. / Fracture characterization of biodegradable PLLA polymer blends. Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". 2007.
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