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Preparation and Characterization of Functional Microcapsules Containing Suspensions of Conducting Materials

전도성 물질 서스펜션을 함유한 마이크로캡슐

  • Received : 2014.09.23
  • Accepted : 2014.12.24
  • Published : 2015.02.10

Abstract

Microcapsules containing the suspension of conducting materials such as carbon nanotube (CNT) or polyaniline (PANI) were prepared by in-situ polymerization of melamine and formaldehyde. Stable microcapsules were prepared and the mean diameter of the observed microcapsules was in the range of $10-20{\mu}m$. The surface morphology and chemical structure of microcapsules were investigated using optical microscope (OM), scanning electron microscope (SEM), and Fourier transform infrared spectroscopy (FT-IR). The thermal properties of samples were investigated by thermogravimetric analysis (TGA). The conductivity of ruptured microcapsule containing the suspension of CNTs or PANIs in tetrachloroethylene and Isopar-G was measured. As the amount of CNTs and PANIs in the core of microcapsules increased, the measured current increased. Conductivity measurement results suggest that poly (melamine-formaldehyde) based core-shell microcapsules could be applied to self-healing electronic materials systems, where CNTs or PANIs bridge a broken circuit upon release.

Keywords

polyaniline;carbon nanotube;poly(melamine-formaldehyde);microcapsules;self-healing

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Acknowledgement

Supported by : 호서대학교