Open AccessCarbon Nanotube and Ethylene-Vinyl Acetate Based Soft Nanocomposite Film: Preparation and Characterization
Author(s) -
Neha Gopal,
Abhishek Saxena,
B. Venkata Manoj Kumar,
Rachana Sahney
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.23319
Subject(s) - nanocomposite , carbon nanotube , materials science , ethylene vinyl acetate , fourier transform infrared spectroscopy , nanotube , chemical engineering , vinyl acetate , polymer , fabrication , scanning electron microscope , composite material , nanotechnology , copolymer , medicine , alternative medicine , pathology , engineering
Soft and conductive interfaces are valuable in wearable electronics as they are capable for integrationof diverse classes of electronic and sensor technologies directly with living body which can be used ashealth monitoring systems. In present work, we explore the development of multi-walled carbonnanotube-ethylene vinyl acetate nanocomposite (MWCNT-EVA) film and their properties. Oxidationof MWCNT is known to improve their dispersion properties and increase the electrical conductivityof MWCNT-polymer nanocomposites. Thus, pristine MWCNTs (p-MWCNTs) and functionalizedMWCNTs (f-MWCNTs) were further used as conductive filler to construct p-MWCNT-EVA andf-MWCNT-EVA nanocomposite films. The films were characterized by Fourier-transform infraredspectroscopy, scanning electron microscopy, energy dispersive X-ray analysis and electrochemicaltechnique. The results indicated that the chemical oxidation of p-MWCNT generates carboxylic functionat the p-MWCNT surface important for sensor fabrication. The concentration of carboxylic functionalgroup in f-MWCNT higher than in nanocomposites. The f-MWCNT-EVA nanocomposite film electrodesurface show much higher conductivitythan p-MWCNT-EVAnanocomposite film. Thus, the soft andflexible f-MWCNT-EVA nanocomposite films are effective for the development of electrochemicalplatform for biosensor fabrication in wearable applications.