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Extreme Thermal Shielding Effects in Nanopaper Based on Multilayers of Aligned Clay Nanoplatelets in Cellulose Nanofiber Matrix
Author(s) -
Carosio Federico,
Kochumalayil Jose,
Fina Alberto,
Berglund Lars A.
Publication year - 2016
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201600551
Subject(s) - nanocellulose , materials science , nanofiber , cellulose , electromagnetic shielding , composite material , thermal , chemical engineering , physics , meteorology , engineering
Thin films consisting of highly aligned clay nanoplatelets embedded in cellulose nanofiber matrix can withstand the penetration of a flame torch (temperature ≈ 900 °C) with a stable temperature drop >600 °C on the unexposed side. Clay nanoplatelets provide high through‐thickness interface density and thermal shielding properties, while nanocellulose expands to form thermally stable carbonaceous residue connecting clay platelets.