Dynamic mechanical and morphological properties of polycarbonate/multi- walled carbon nanotube composites

Y. T. Sung, C. K. Kum, H. S. Lee, N. S. Byon, H. G. Yoon, W. N. Kim

Research output: Contribution to journalArticle

82 Citations (Scopus)

Abstract

Dynamic mechanical and morphological properties of the polycarbonate (PC)/multi-walled carbon nanotube (MWNT) composites were studied by dynamic mechanical thermal analysis (DMTA) and X-ray diffractometry, respectively. For the without annealed PC/MWNT composites containing the higher content of the MWNT (≥7.0 wt%), double tan δ peaks were observed, which could be explained by the phase separation morphology model. For the annealed PC/MWNT composites, a broad single tan δ peak was observed. From the X-ray diffraction of the annealed PC/MWNT composites, it was observed that more regular structure of the PC was obtained, which was consistent with the result of the thermal analysis of the annealed PC/MWNT composites. From the dynamic mechanical properties, thermal analysis, and X-ray diffraction of the annealed PC/MWNT composites, it is suggested that PC/MWNT composites show a broad single tan δ peak and partially crystalline structure of the PC in the PC/MWNT composites by annealing.

Original languageEnglish
Pages (from-to)5656-5661
Number of pages6
JournalPolymer
Volume46
Issue number15
DOIs
Publication statusPublished - 2005 Jul 11

Keywords

  • Composite
  • Dynamic mechanical properties
  • Multi-walled carbon nanotube

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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