Fibers and Polymers

, Volume 11, Issue 7, pp 1018–1023

Unique crystallization behavior of multi-walled carbon nanotube filled poly(lactic acid)

  • Seong Yun Kim
  • Kook Seung Shin
  • Seung Hwan Lee
  • Kyeong Wung Kim
  • Jae Ryoun Youn
Article

DOI: 10.1007/s12221-010-1018-4

Cite this article as:
Kim, S.Y., Shin, K.S., Lee, S.H. et al. Fibers Polym (2010) 11: 1018. doi:10.1007/s12221-010-1018-4

Abstract

Although poly(lactic acid) (PLA) possesses many desirable properties such as miscible, reproducible, nontoxic, and biodegradable properties, extremely slow crystallization rate is a weak point in comparison with other commercial thermoplastics. Addition of nucleating agents can be a good method to increase the overall crystallization rate and multi-walled carbon nanotube (MWCNT) is generally known as a good nucleating agent as well as reinforcement. MWCNT reinforced PLA nanocomposites were prepared by melt blending and the unique nucleation and crystallization behaviors of pure PLA and MWCNT/PLA nanocomposites were investigated. Slow homogeneous nucleation and crystallization behavior of the pure PLA and fast heterogeneous crystallization behavior of MWCNT/PLA nanocomposites were observed. Crystallization behavior of MWCNT/PLA nanocomposites was irrespective of cooling rate and the peculiar behavior was due to fast heterogeneous crystallization caused by the nucleating effect of MWCNT and fast PLA chain mobility.

Keywords

Carbon nanotube Crystallization Differential scanning calorimetry (DSC) Poly(lactic acid) (PLA) Wide angle X-ray diffraction (WAXD) 

Copyright information

© The Korean Fiber Society and Springer Netherlands 2010

Authors and Affiliations

  • Seong Yun Kim
    • 1
  • Kook Seung Shin
    • 2
  • Seung Hwan Lee
    • 1
  • Kyeong Wung Kim
    • 3
  • Jae Ryoun Youn
    • 1
  1. 1.Research Institute of Advanced Materials, Department of Materials Science and EngineeringSeoul National UniversitySeoulKorea
  2. 2.Dongwoo Finechem Co. Ltd.Gyeonggi-DoKorea
  3. 3.Cresin Co. Ltd.Gyungsangbuk-DoKorea

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