The investigation of sensing mechanism of ethanol vapour in polymer-nanostructured carbon composite |
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| Authors: | Gita Sakale Maris Knite Valdis Teteris Velta Tupureina Santa Stepina Elina Liepa |
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| Institution: | (1) School of Chemical and Environmental Engineering, Hubei University of Technology, Wuhan, 430068, People’s Republic of China;(2) School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, People’s Republic of China |
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| Abstract: | 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 PEG-NCC followed by PVAc-NCC and EVA-NCC. |
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