Improving the Toughness of Poly (L-lactic acid) by Interpenetrating Network Structure

Tun Galag Dong; Ye Jin; Xin Guo; Wen Xiu Sun; Meng Ting Li; Can Can Shi; Yoshio Inoue

doi:10.4028/www.scientific.net/AMR.239-242.1919

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 239-242Improving the Toughness of Poly (L-lactic acid) by...

Improving the Toughness of Poly (L-lactic acid) by Interpenetrating Network Structure

Abstract:

An interpenetrating polymer network was formed by blending of PLLA and PEG cross-linked β-CD to improve the toughness of PLLA, and the mechanical properties of PLLA composites were studied using tensile test. The PLLA composite samples exhibited a single glass transition and their T_g values decreased with increasing PEG/β-CD content, indicating that PLLA and PEG/β-CD are miscible. The PLLA composite samples aged at room temperature achieved the highest fracture strain (about 235%), about 40 times that of the original PLLA sample, while the Young's modulus was not seriously hampered.

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Periodical:

Advanced Materials Research (Volumes 239-242)

Pages:

1919-1922

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.239-242.1919

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Online since:

May 2011

Authors:

Tun Galag Dong, Ye Jin, Xin Guo, Wen Xiu Sun, Meng Ting Li, Can Can Shi, Yoshio Inoue

Keywords:

Cyclodextrin, Gel, Interpenetrating Network, Poly(lactic acid) (PLA), Tensile Properties

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