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
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DOI - Digital Object Identifier
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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'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
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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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