화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.19, No.3, 233-242, March, 2011
DOI10.1007/s13233-011-0314-1  Export Citation
Characterization and AC Electrical Conductivity for the Dispersed Composites Containing Alginate-Multiwalled Carbon Nanotubes
C. Basavaraja, Bong Seong Kim, and Do Sung Huh†
  • Department of Chemistry and Institute of Basic Science, Inje University, Gyungnam, 621-749, Korea
E-mail:
Polymer composites containing alginate (AL) and treated multiwalled carbon nanotubes (TMWNT) were prepared by dispersing different weight percentages of TMWNT. The resulting composites were characterized by Fourier transform infrared spectroscopy (FTIR) and UV-vis spectroscopy (UV). The morphology of the composites was examined by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and the thermal stability and crystallinity embedded in the composites were analyzed by thermogravimetric analysis (TGA) and X-ray diffraction (XRD). The results of the characterization, morphology, thermal stability as well as diffraction studies clearly show that the alginate-TMWNT (AL-NT) composites are formed by dispersing the TMWNT into the AL polymer matrix. In addition, the AC electrical conductivity of the composites was also studied in the frequency range, 350 KHz-2.3 MHz. The frequency and temperature dependent AC conductivity of the AL-NT composites was strongly affected by the dispersed concentration of TMWNT.
Keywords:AC conductivity;alginate;composite;dielectric constant;multiwalled carbon nanotubes.
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