Electromagnetic interference shielding properties of graphene quantum-dots reinforced poly(vinyl alcohol)/polypyrrole blend nanocomposites
| dc.contributor.author | Rani, Priyanka | |
| dc.contributor.author | Ahamed, Basheer | |
| dc.contributor.author | Deshmukh, Kalim Abdul Rashid | |
| dc.date.accessioned | 2021-02-08T11:00:31Z | |
| dc.date.available | 2021-02-08T11:00:31Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract-translated | Graphene quantum dots (GQDs) reinforced poly(vinyl alcohol) (PVA)/polypyrrole (WPPy) nanocomposite films with various GQDs loadings were synthesized using the versatile solvent casting method. The structural and morphological properties of PVA/WPPy/GQDs nanocomposite films were investigated by employing Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy. The thermogravimetric analysis revealed enhanced thermal stability of synthesized nanocomposites while enhanced dielectric properties were also observed. The maximum dielectric constant value for PVA/WPPy/GQDs nanocomposite films was observed to be epsilon = 6,311.85 (50 Hz, 150 degrees C). The electromagnetic interference (EMI) shielding effectiveness (SE) of nanocomposite films was determined in the X-band (8-12 GHz) and Ku-band (12-18 GHz) frequency region. The EMI SE was found to be increased from 0.8 dB for the pure PVA film to 9.8 dB for the PVA/WPPy/GQDs nanocomposite film containing 10 wt% GQDs loading. The enhanced EMI shielding efficiency of nanocomposite films has resulted from the homogenous dispersion of GQDs in PVA/WPPy blend nanocomposites. Thus, the prepared nanocomposites are envisioned to utilize as a lightweight, flexible, and low-cost material for EMI shielding applications. | en |
| dc.format | 13 s. | cs |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | RANI, P., AHAMED, B., DESHMUKH, K. A. R. Electromagnetic interference shielding properties of graphene quantum-dots reinforced poly(vinyl alcohol)/polypyrrole blend nanocomposites. Journal of applied polymer science, 2020, roč. 137, č. 45. ISSN 0021-8995. | cs |
| dc.identifier.document-number | 537694900001 | |
| dc.identifier.doi | 10.1002/app.49392 | |
| dc.identifier.issn | 0021-8995 | |
| dc.identifier.obd | 43931924 | |
| dc.identifier.uri | 2-s2.0-85086006175 | |
| dc.identifier.uri | http://hdl.handle.net/11025/42657 | |
| dc.language.iso | en | en |
| dc.publisher | John Wiley and Sons | en |
| dc.relation.ispartofseries | Journal Of Applied Polymer Science | en |
| dc.rights | Plný text není přístupný. | cs |
| dc.rights | © John Wiley and Sons | en |
| dc.rights.access | closedAccess | en |
| dc.subject.translated | composites | en |
| dc.subject.translated | dielectric properties | en |
| dc.subject.translated | fullerenes | en |
| dc.subject.translated | graphene | en |
| dc.subject.translated | morphology | en |
| dc.subject.translated | nanocrystals | en |
| dc.subject.translated | nanoparticles | en |
| dc.subject.translated | nanotubes | en |
| dc.subject.translated | nanowires | en |
| dc.title | Electromagnetic interference shielding properties of graphene quantum-dots reinforced poly(vinyl alcohol)/polypyrrole blend nanocomposites | en |
| dc.type | článek | cs |
| dc.type | article | en |
| dc.type.status | Peer-reviewed | en |
| dc.type.version | publishedVersion | en |