Soft and conductive interfaces are valuable in wearable electronics as they are capable for integration
of diverse classes of electronic and sensor technologies directly with living body which can be used as
health monitoring systems. In present work, we explore the development of multi-walled carbon
nanotube-ethylene vinyl acetate nanocomposite (MWCNT-EVA) film and their properties. Oxidation
of MWCNT is known to improve their dispersion properties and increase the electrical conductivity
of MWCNT-polymer nanocomposites. Thus, pristine MWCNTs (p-MWCNTs) and functionalized
MWCNTs (f-MWCNTs) were further used as conductive filler to construct p-MWCNT-EVA and
f-MWCNT-EVA nanocomposite films. The films were characterized by Fourier-transform infrared
spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis and electrochemical
technique. The results indicated that the chemical oxidation of p-MWCNT generates carboxylic function
at the p-MWCNT surface important for sensor fabrication. The concentration of carboxylic functional
group in f-MWCNT higher than in nanocomposites. The f-MWCNT-EVA nanocomposite film electrode
surface show much higher conductivitythan p-MWCNT-EVAnanocomposite film. Thus, the soft and
flexible f-MWCNT-EVA nanocomposite films are effective for the development of electrochemical
platform for biosensor fabrication in wearable applications.
Carbon Nanotube and Ethylene-Vinyl Acetate Based Soft
Nanocomposite Film: Preparation and Characterization