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Isothermal Crystallization Kinetics Effect on the Tensile Properties of PLA/PTT Polymer Composites

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Strength of Materials Aims and scope

A poly(lactic acid)/poly(trimethylene terephthalate) (PLA/PTT) composite was prepared by melt blending to improve the PTT crystallization rate. Morphology analysis of PLA/PTT fractured surfaces demonstrated the compatibility of its components. Thermogravimetric analysis revealed that the thermodegradation of a PLA/PTT sample was higher than that of PLA. Differential scanning calorimetry was used to evaluate the crystallization behavior. The Avrami equation described the isothermal crystallization kinetics. The Hoffman–Weeks parameters indicated that the PLA presence increased slightly the PTT nucleation. The tests of PLA, PTT, and PLA/PTT specimens in tension showed that a percent elongation of the PLA/PTT composite was between that of PLA and PTT; however, the tensile strength of the PLA/PTT composite was similar to that of PLA.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan

    C.-Y. Tsou, C.-L. Wu, Y.-C. Tseng & S.-H. Chiu

  2. Lee-Ming Institute of Technology, Department of Fashion Business Administration, Taishan, New Taipei City, Taiwan

    M.-C. Suen

  3. R&D Center for Membrane Technology, Chung Yuan University, Chung Li, Taiwan

    W. S. Hung

  4. Institute of Materials Science and Engineering, Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Zigong, China

    C.-H. Tsou

  5. Faculties of Biological and Chemical Engineering, Faculties of Materials Engineering, Science and Technology Innovation Center, Panzhihua University, Panzhihua, China

    C.-H. Tsou

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  1. C.-Y. Tsou
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  2. C.-L. Wu
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Correspondence to C.-H. Tsou.

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Translated from Problemy Prochnosti, No. 1, pp. 190 – 199, January – February, 2017.

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Tsou, CY., Wu, CL., Tseng, YC. et al. Isothermal Crystallization Kinetics Effect on the Tensile Properties of PLA/PTT Polymer Composites. Strength Mater 49, 171–179 (2017). https://doi.org/10.1007/s11223-017-9855-7

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  • DOI: https://doi.org/10.1007/s11223-017-9855-7

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