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

• Published in: Проблемы прочности
• Date: 2017
• Main Authors: Tsou, C.-Y., Wu, C.-L., Tseng, Y.-C., Chiu, S.-H., Suen, M.-C., Hung, W.S., Tsou, C.-H.
• Format: Article
• Language: English
• Published: Інститут проблем міцності ім. Г.С. Писаренко НАН України 2017
• Subjects: Научно-технический раздел
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/173597
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Isothermal Crystallization Kinetics Effect on the Tensile Properties of PLA/PTT Polymer Composites / C.-Y. Tsou, C.-L. Wu, Y.-C. Tseng, S.-H. Chiu, M.-C. Suen, W.S. Hung, C.-H. Tsou // Проблемы прочности. — 2017. — № 1. — С. 190-199. — Бібліогр.: 29 назв. — англ.

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.