Effect of P(LLA-CL) blending on the mechanical properties of PLLA/PCL

Tetsuo Takayama, Mitsugu Todo, Hideto Tsuji, Kazuo Arakawa

    研究成果: ジャーナルへの寄稿学術誌査読

    1 被引用数 (Scopus)

    抄録

    P(LLA-CL) copolymer was additionally blended to PLLA/PCL polymer blend to improve the immiscibility between PLLA and PCL. Mechanical properties such as the bending modulus, strength and the maximum J-integral were then measured and the phase morphology and fracture surface were observed using FE-SEM. Crystallinity values of PLLA and PCL were also evaluated using DSC. It is seen that those mechanical properties successfully increased due to P(LLA-CL) addition. The results of FE-SEM observation and ciystallinity measurement suggests that the immiscibility is improved by P(LLA-CL) blending and as a result, spherulites of PCL dispersed in the blend are reduced, resulting in effective increase of ductile deformation. It is thought that this kind of phase structural change causes the improvement of the mechanical properties.

    本文言語英語
    ページ(範囲)211-216
    ページ数6
    ジャーナルZairyo/Journal of the Society of Materials Science, Japan
    56
    3
    DOI
    出版ステータス出版済み - 3月 2007

    !!!All Science Journal Classification (ASJC) codes

    • 材料科学一般
    • 凝縮系物理学
    • 材料力学
    • 機械工学

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