The Investigation of Sensing Mechanism of Ethanol Vapour in Polymer-Nanostructured Carbon Composite

Central European Journal of Physics 2011
Gita Šakale, Māris Knite, Velta Tupureina, Valdis Teteris, Santa Stepiņa, Elīna Liepa

Polymer-nanostructured carbon composites (PNCC) using three different polymers as composite matrix materials (polyvinylacetate (PVAc), polyethylene glycol (PEG) and ethylene-vinylacetate copolymer (EVA)) have been developed. High structure carbon black Printex XE2 (Degussa AG) was used as a composites filler. Ethanol vapour sensor-effect of composites was determined as a change of electrical resistance as the composite was held in ethanol vapour for 30 seconds. Reversibility of electrical resistance of PNCC, response stability and repeatability have been measured and compared. The electrical resistance response of EVA-nanostructured carbon composite (EVA-NCC) to ethanol vapour as a function of vinylacetate content in the copolymer has been evaluated. Promising ethanol vapour sensor-effect has been observed for PEGNCC followed by PVAc-NCC and EVA-NCC.

Keywords
nanostructured polymer composites, chemical sensors, vapour detection
DOI
10.2478/s11534-010-0110-0
Hyperlink
http://link.springer.com/article/10.2478%2Fs11534-010-0110-0

Šakale, G., Knite, M., Tupureina, V., Teteris, V., Stepiņa, S., Liepa, E. The Investigation of Sensing Mechanism of Ethanol Vapour in Polymer-Nanostructured Carbon Composite. Central European Journal of Physics, 2011, Vol.9, Iss.2, pp.307-312. ISSN 1895-1082. e-ISSN 1644-3608. Available from: doi:10.2478/s11534-010-0110-0

Publication language
English (en)