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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 &amp; 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