The sensing properties of carbon nanotube filled copolymers for VOC vapors detection
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F21%3A63543558" target="_blank" >RIV/70883521:28610/21:63543558 - isvavai.cz</a>
Result on the web
<a href="https://www.confer.cz/nanocon/2020/3695-the-sensing-properties-of-carbon-nanotube-filled-copolymers-for-voc-vapors-detection" target="_blank" >https://www.confer.cz/nanocon/2020/3695-the-sensing-properties-of-carbon-nanotube-filled-copolymers-for-voc-vapors-detection</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/nanocon.2020.3695" target="_blank" >10.37904/nanocon.2020.3695</a>
Alternative languages
Result language
angličtina
Original language name
The sensing properties of carbon nanotube filled copolymers for VOC vapors detection
Original language description
Nowadays, carbon nanotubes are a widely available material, especially multiwall carbon nanotubes. In addition to many other applications, they find use in all kinds of sensors, like deformation, motion, tensile and pressure responsive elements. Numerous applications in sensors for volatile organic compounds (VOCs) are reported as well, nevertheless, they mainly suffer from low selectivity. Therefore, in this research, a sensor containing MWCNTs dispersed in a functional polymer matrix was prepared. As a polymer matrix, styreneisoprene- styrene elastomer was chosen. The standard sensing mechanism of entangled MWCNTs is based on the quality of the contacts (charge transfer) between the individual nanotubes. In the prepared nanocomposite, the mechanism is modified due to the presence of the otherwise non-conductive matrix. The changes of conductivity depend on the response of the percolating nanotube filler network to the swelling of the polymer matrix due to adsorption of VOCs. The tested gas substances have high values of diffusion coefficient for the polymer, so they have a quick response. Then, the selectivity is ensured by differences in solubility of the tested VOCs in the polymer. The effect was demonstrated for four VOCs differing by their affinity to the polymer matrix, namely, heptane, toluene, acetone, and ethanol.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/ED2.1.00%2F19.0409" target="_blank" >ED2.1.00/19.0409: CPS - strengthening research capacity</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings 12th International Conference on Nanomaterials - Research & Application
ISBN
978-80-87294-98-7
ISSN
2694-930X
e-ISSN
—
Number of pages
5
Pages from-to
63-67
Publisher name
Tanger Ltd.
Place of publication
Ostrava
Event location
Brno
Event date
Oct 21, 2020
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000664505500010