Journal
PROGRESS IN ORGANIC COATINGS
Volume 130, Issue -, Pages 260-269Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2019.01.042
Keywords
Carbon nanotubes; Electroconductive coatings; Smart textiles; Dispersibility; Aspect ratio; Aurfactant-aided individualization
Funding
- National Science for Research and Development (Narodowe Centrum Badatt i Rozwoju, PL) (program TANGO) [266,702]
- National Science Centre (Narodowe Centrum Nauki, PL)(project OPUS) [394,970]
- Silesian University of Technology [BKM-530/RCH2/2016]
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We report on preparation, application and fixation of electrically conductive and flexible coatings of surface resistivity 110 Omega/sq. The most promising coatings were obtained from pastes exploiting synthesized in-house-via chemical catalytic vapour deposition (c-CVD)- 200 mu m-long multi-wall carbon nanotubes (MWCNTs). MWCNTs were finely dispersed in water using a surfactant pre-selected according to 'individualizing' power measured by centrifugation-stability in UV-vis spectroscopy. The influence of MWCNT aspect ratio on: the resulting dispersion stabilities, and physicochemical compatibilities of nanotubes with aqueous solutions of surfactants was clearly demonstrated by comparative studies of individualized in-house (aspect ratio = 3000) versus commercial Nanocyl NC7000(TM) (aspect ratio = 150) MWCNTs. The individualized MWCNTs were used as the further conductive components of acrylic resin-based pastes towards flexible and conductive textile coatings. The results fall within the understanding of production of conductive coatings for e-textiles - the field with numerous every-day life applications from medicine, e.g. in electrocardiography, to fashion to military.
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