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Mechanical Properties of Blends of Double-Fullerene End-Capped Poly(ethylene oxide) and Poly(L-lactic acid)

✍ Scribed by Weihua Kai; Li Zhao; Bo Zhu; Yoshio Inoue

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
201 KB
Volume
207
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

Summary: The crystallization behavior and mechanical properties of composites of PLLA and FPEOF were studied using DSC, DMA and tensile strength measurements. For PLLA/FPEOF composites aged at room temperature, when PLLA was amorphous, an astonishing around 100 times increase in the fracture strain with a high modulus was observed. For PLLA/FPEOF composites aged at 90 °C, the mechanical performance of the composites was greatly decreased and the fracture strain did not show much of an increase compared with pure PLLA. A mechanism for the large changes in the mechanical properties of PLLA/FPEOF blends aged at different temperatures was proposed.

Strain‐stress curves of the PLLA/FPEO20F6 composite aged at 90 °C and room temperature.

imageStrain‐stress curves of the PLLA/FPEO20F6 composite aged at 90 °C and room temperature.

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