Effect of additive on fracture properties of PLA/PCL polymer blend

Tetsuo Takayama, Mitsugu Todo, Kazuo Arakawa, Hideto Tsuji

    Research output: Contribution to journalReview articlepeer-review

    3 Citations (Scopus)


    LTI was added to blends of PLA and PCL to improve the immiscibility of the two different kinds of biodegradable polymers. Fracture properties of PLA/PCL and PLA/PCL+LTI were evaluated and compared to assess the effect of LTI additive on the fracture behavior. Both the J-integral at initiation, Jin, and the total fracture energy, Jf, were improved effectively due to LTI addition. Fracture surfaces were also examined using SEM to characterize fracture mechanism. It was confirmed that the size of PCL spherulites became smaller by adding LTI, and therefore void formation was inhibited, resulting in the improvement of the fracture properties.

    Original languageEnglish
    Pages (from-to)173-178
    Number of pages6
    JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
    Issue number2
    Publication statusPublished - Feb 2006

    All Science Journal Classification (ASJC) codes

    • General Materials Science
    • Mechanics of Materials
    • Mechanical Engineering


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