| 초록 |
Polydimethylsiloxane (PDMS) has several attractive properties including excellent optical transparency, chemical inertness and flexibility. Multiwalled carbon nanotubes (MWCNTs) have attacked a great deal of interest due to good conductivity, high thermal stability and mechanical robustness. In this study, stretchable PDMS-based composite films were prepared by incorporating different MWCNT contents using a solution-casting and curing technique. The dispersion state of MWCNTs in the PDMS matrix was characterized using FE-SEM. The mechanical and thermal stability of the composite films were evaluated by tensile measurement and thermogravimetric analysis. The performance of the MWCNT/PDMS composite films as electric heating elements was examined as functions of the MWCNT content and applied voltage. The electric heating behavior of the composite films was investigated by considering temperature response rapidity, maximum temperature and electric power efficiency. |
