Flexible, ultrathin and light films from one-dimensional nanostructures of polypyrrole and cellulose nanofibers for high performance electromagnetic interference shielding

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F23%3A43926474" target="_blank" >RIV/60461373:22340/23:43926474 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/23:10474003 RIV/70883521:28610/23:63565998
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0144861723001261?ref=cra_js_challenge&fr=RR-1" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0144861723001261?ref=cra_js_challenge&fr=RR-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.carbpol.2023.120662" target="_blank" >10.1016/j.carbpol.2023.120662</a>

Result language
angličtina
Original language name
Flexible, ultrathin and light films from one-dimensional nanostructures of polypyrrole and cellulose nanofibers for high performance electromagnetic interference shielding
Original language description
Combining highly conducting one-dimensional nanostructures of polypyrrole with cellulose nanofibers (CNF) into flexible films with tailored electrical conductivity and mechanical properties presents a promising route towards the development of eco-friendly electromagnetic interference shielding devices. Herein, conducting films with a thickness of 140 μm were synthesized from polypyrrole nanotubes (PPy-NT) and CNF using two approaches, i.e., a new one-pot synthesis consisting of in situ polymerization of pyrrole in the presence of structure guiding agent and CNF, and a two-step synthesis, in which CNF and PPy-NT were physically blended. Films based on one-pot synthesis (PPy-NT/CNFin) exhibited higher conductivity than those processed by physical blending, which was further enhanced up to 14.51 S cm−1 after redoping using HCl post-treatment. PPy-NT/CNFin containing the lowest PPy-NT loading (40 wt%), thus the lowest conductivity (5.1 S cm−1), displayed the highest shielding effectiveness of −23.6 dB (>90 % attenuation), thanks to the good balance between its mechanical properties and electrical conductivity. © 2023 Elsevier Ltd
Czech name
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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
—
OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project
<a href="/en/project/GA21-09830S" target="_blank" >GA21-09830S: Elastic nanosilicon for advanced Li-ion batteries</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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