Effect of nano-sized poly(butyl acrylate) layer grafted from graphene oxide sheets on the compatibility and beta-phase development of poly(vinylidene fluoride) and their vibration sensing performance

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F22%3A63556698" target="_blank" >RIV/70883521:28610/22:63556698 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28110/22:63556698
Result on the web
<a href="https://www.mdpi.com/1422-0067/23/10/5777" target="_blank" >https://www.mdpi.com/1422-0067/23/10/5777</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ijms23105777" target="_blank" >10.3390/ijms23105777</a>

Result language
angličtina
Original language name
Effect of nano-sized poly(butyl acrylate) layer grafted from graphene oxide sheets on the compatibility and beta-phase development of poly(vinylidene fluoride) and their vibration sensing performance
Original language description
In this work, graphene oxide (GO) particles were modified with a nano-sized poly(butyl acrylate) (PBA) layer to improve the hydrophobicity of the GO and improve compatibility with PVDF. The improved hydrophobicity was elucidated using contact angle investigations, and exhibit nearly 0 degrees for neat GO and 102 degrees for GO-PBA. Then, the neat GO and GO-PBA particles were mixed with PVDF using a twin screw laboratory extruder. It was clearly shown that nano-sized PBA layer acts as plasticizer and shifts glass transition temperature from -38.7 degrees C for neat PVDF to 45.2 degrees C for PVDF/GO-PBA. Finally, the sensitivity to the vibrations of various frequencies was performed and the piezoelectric constant in the thickness mode, d(33), was calculated and its electrical load independency were confirmed. Received values of the d(33) were for neat PVDF 14.7 pC/N, for PVDF/GO 20.6 pC/N and for PVDF/GO-PBA 26.2 pC/N showing significant improvement of the vibration sensing and thus providing very promising systems for structural health monitoring and data harvesting.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

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)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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