Structural, dielectric and EMI shielding properties of polyvinyl alcohol/chitosan blend nanocomposites integrated with graphite oxide and nickel oxide nanofillers

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dc.contributor.authorRani, Priyanka
dc.contributor.authorAhamed, Momin Basheer
dc.contributor.authorDeshmukh, Kalim Abdul Rashid
dc.date.accessioned2021-03-15T11:00:33Z
dc.date.available2021-03-15T11:00:33Z
dc.date.issued2020
dc.description.abstract-translatedPolyvinyl alcohol (PVA) and Chitosan (CS)-based novel composites were prepared using solution casting technique by introducing graphite oxide (GO) and nickel oxide (NiO) as nanofillers. The structural, thermal and mechanical properties of PVA/CS/GO/NiO nanocomposites were investigated using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analyzer (TGA), differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). The dielectric and electromagnetic interference (EMI) shielding properties of synthesized nanocomposites were also investigated. The addition of dual nanofillers in the PVA/CS blend resulted in improved thermal stability of nanocomposites through the interaction of nanofillers with OH groups of polymer matrices. The DMA results displayed higher storage and loss modulus at low temperature for nanocomposite with 1.5/15 wt% of GO/NiO loading. The maximum values of dielectric constant and dielectric loss obtained are 1315.5 and 11.1 at the low-frequency region, respectively. The absorption dominated EMI shielding effectiveness (SE) was observed with a maximum EMI SE value of 12 dB for nanocomposite film containing 3.0/30 wt% of GO/NiO as compared to EMI SE value of 0.3 dB for PVA/CS blend in Ku-band (12–18 GHz) region. The electrical network formation by GO and NiO in the polymer matrix resulted in an improved EMI SE which further emphasizes the potential use of these nanocomposite films as an effective EMI shielding material.en
dc.format16 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationRANI, P. AHAMED, MB. DESHMUKH, KAR.Structural, dielectric and EMI shielding properties of polyvinyl alcohol/chitosan blend nanocomposites integrated with graphite oxide and nickel oxide nanofillers. Journal of materials science-materials in electronics, 2020, roč. 32, č. 1, s. 764-779. ISSN 0957-4522.cs
dc.identifier.document-number591127100001
dc.identifier.doi10.1007/s10854-020-04855-w
dc.identifier.issn0957-4522
dc.identifier.obd43931933
dc.identifier.uri2-s2.0-85096394827
dc.identifier.urihttp://hdl.handle.net/11025/42970
dc.language.isoenen
dc.publisherSpringeren
dc.relation.ispartofseriesJournal Of Materials Science-materials In Electronicsen
dc.rightsPlný text není přístupný.cs
dc.rights© Springeren
dc.rights.accessclosedAccessen
dc.subject.translatedreduced graphene oxideen
dc.subject.translatedPMMA nanocompositesen
dc.subject.translatedNIO nanoparticlesen
dc.subject.translatedcarbon nanotubeen
dc.subject.translatedcongo reden
dc.subject.translatedchitosanen
dc.subject.translatedcompositesen
dc.subject.translatedfabricationen
dc.subject.translatedabsorptionen
dc.subject.translatedadsoptionen
dc.titleStructural, dielectric and EMI shielding properties of polyvinyl alcohol/chitosan blend nanocomposites integrated with graphite oxide and nickel oxide nanofillersen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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