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Graphene oxide coated with poly(butyl acrylate) and its impact on the physical and vibration sensing properties of PVDF-based composites

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F21%3A63546118" target="_blank" >RIV/70883521:28110/21:63546118 - isvavai.cz</a>

  • Alternative codes found

    RIV/70883521:28610/21:63546118

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Graphene oxide coated with poly(butyl acrylate) and its impact on the physical and vibration sensing properties of PVDF-based composites

  • Original language description

    Vibration sensing elements are very important devices for structural healts monitoring (SHM) enabling permanent or periodic checking of the various electronic or other industrial devices. The main limitation of them is high price and small size, due to the fact that they are mainly composed of piezoceramic part those provide sufficient vibration sensing capability. Therefore. the utilization of the larger layers fabricated from the piezo-electric polymers seems to be interesting approach of such SHM. ln this case. well-known polymer poly(vinylidene fluoride) (PVDF) can be effectively applied. However, PVDF is not initially piezo-electric and have to be modified to provide some signal from mechanical vibrations. Therefore. in our present study we have used graphene oxide (GO) particles as a source of additional dipoles and mixed with PVDF. However, the hydrophilic nature of GO and hydrophobic of PVDF need to be solved to significantly improved the proper dispergation of the GO. We have coated the GO particles with poly(butyl acrylate) polymer brushes (GOPBA) and further mixed with PVDF us&apos;ing microcompounding machine. The layers with thickness of 0.5 mm were compressed and evaluated from the physical as well as vibration sensing capabilities. Finally, it was observed that improved compatibility between the GOPBA particles provide better development of the crystalline phase, sufficient mechanical properties and consequently significantly enhanced vibration sensihg capabilities investigated using d33 piezoelectric constant.

  • Czech name

  • Czech description

Classification

  • Type

    O - Miscellaneous

  • CEP classification

  • OECD FORD branch

    10404 - Polymer science

Result continuities

  • Project

    <a href="/en/project/GA19-17457S" target="_blank" >GA19-17457S: Manufacturing and analysis of flexible piezoelectric layers for smart engineering</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů