Holocellulose nanofibrils assisted exfoliation to prepare MXene-based composite film with excellent electromagnetic interference shielding performance.
Carbohydr Polym
; 274: 118652, 2021 Nov 15.
Article
en En
| MEDLINE
| ID: mdl-34702471
ABSTRACT
A high-yield and straightforward method is proposed to obtain an electromagnetic interference (EMI) shielding film based on multilayered Ti3C2Tx (m-Ti3C2Tx). Holocellulose nanofibrils modified by sulfamic acid (SHCNF) with unique "core-shell" structure can act as a dispersant and a binder to assist in exfoliating m-Ti3C2Tx into delaminated-Ti3C2Tx (d-Ti3C2Tx) and fabricate flexible Ti3C2Tx/SHCNF composite films with a high-yield value. The "brick-and-mortar" composite films exhibit a superior electromagnetic interference (EMI) shielding effectiveness (SE) of 45.02 dB with an ultrathin thickness of 40 µm at the 12.4 GHz. Moreover, these flexible and strong integrated Ti3C2Tx/SHCNF composite films also display excellent specific EMI SE of SSE/t (4437 dB cm2 g-1) and high EMI shielding efficiency (99.996%). Therefore, the SHCNF-assisted method provides a cost-effective approach to fabricate a strong and flexible MXene-based nanocomposite films toward EMI shielding application.
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1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Carbohydr Polym
Año:
2021
Tipo del documento:
Article
País de afiliación:
China