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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/70883521:28110/22:63556698

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/GA19-17457S" target="_blank" >GA19-17457S: Výroba a analýza flexibilních piezoelektrických vrstev pro chytré strojírenství</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

International Journal of Molecular Sciences

ISSN

1661-6596

e-ISSN

1422-0067

Svazek periodika

23

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

18

Strana od-do

nestrankovano

Kód UT WoS článku

000801952700001

EID výsledku v databázi Scopus

2-s2.0-85130308653