The investigation of sensing mechanism of ethanol vapour in polymer-nanostructured carbon composite

• Authors: Gita Sakale , Maris Knite , Valdis Teteris , Velta Tupureina , Santa Stepina , Elina Liepa
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

nanostructured polymer composites; chemical sensors; vapour detection

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2011
• Volume: 9
• Issue: 2
• Pages: 307-312

Dates

published

1 - 4 - 2011

online

20 - 2 - 2011

Contributors

author

Gita Sakale

• Institute of Technical Physics, Riga Technical University, Azenes street 14/24, Riga, LV-1048, Latvia

author

Maris Knite

• Institute of Technical Physics, Riga Technical University, Azenes street 14/24, Riga, LV-1048, Latvia

author

Valdis Teteris

• Institute of Technical Physics, Riga Technical University, Azenes street 14/24, Riga, LV-1048, Latvia

author

Velta Tupureina

• Institute of Polymer materials, Riga Technical University, Azenes street 14/24, Riga, LV-1048, Latvia

author

Santa Stepina

• Institute of Technical Physics, Riga Technical University, Azenes street 14/24, Riga, LV-1048, Latvia

author

Elina Liepa

• Institute of Technical Physics, Riga Technical University, Azenes street 14/24, Riga, LV-1048, Latvia

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Identifiers

DOI

10.2478/s11534-010-0110-0