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Thermal, mechanical and rheological properties of poly (lactic acid)/epoxidized soybean oil blends

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Summary

Poly(lactic acid) (PLA) was melt blended with epoxidized soybean oil (ESO) in an internal mixer and thermal, mechanical and rheological properties of the blends were investigated by means of differential scanning calorimetry, dynamic mechanical analysis, tensile test and small amplitude oscillatory shear rheometry. ESO lowered glass transition temperature and increased the ability of PLA to cold crystallization. The blend exhibited improved elongation-at-break along with a plastic deformation. The plasticization effect by ESO was also manifested by the lowering of dynamic storage modulus and viscosity in the melt state of the blends compared with neat PLA.

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Authors and Affiliations

  1. Department of Chemical Engineering, Hanyang University Ansan, Kyunggi-Do, Korea

    Fathilah Ali, Young-Wook Chang & Shin Choon Kang

  2. Department of Mechanical Engineering, Hanyang University Ansan, Kyunggi-Do, Korea

    Joon Yong Yoon

Authors
  1. Fathilah Ali
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  2. Young-Wook Chang
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  3. Shin Choon Kang
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  4. Joon Yong Yoon
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Ali, F., Chang, YW., Kang, S. et al. Thermal, mechanical and rheological properties of poly (lactic acid)/epoxidized soybean oil blends. Polym. Bull. 62, 91–98 (2009). https://doi.org/10.1007/s00289-008-1012-9

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  • DOI: https://doi.org/10.1007/s00289-008-1012-9

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