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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216208:11320/23:10474003 RIV/70883521:28610/23:63565998

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 (&gt;90 % attenuation), thanks to the good balance between its mechanical properties and electrical conductivity. © 2023 Elsevier Ltd

Název v anglickém jazyce

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

Popis výsledku anglicky

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 (&gt;90 % attenuation), thanks to the good balance between its mechanical properties and electrical conductivity. © 2023 Elsevier Ltd

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/GA21-09830S" target="_blank" >GA21-09830S: Pružný nanokřemík pro pokročilé Li-ion baterie</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Carbohydrate Polymers

ISSN

0144-8617

e-ISSN

1879-1344

Svazek periodika

309

Číslo periodika v rámci svazku

Červen

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

120662

Kód UT WoS článku

000944008100001

EID výsledku v databázi Scopus

2-s2.0-85147540590