Multifunctional hybrid structures made of open-cell aluminum foam impregnated with cellulose/graphene nanocomposites
authors Pinto, SC; Silva, NHCS; Pinto, RJB; Freire, CSR; Duarte, I; Vicente, R; Vesenjak, M; Marques, PAAP
nationality International
journal CARBOHYDRATE POLYMERS
author keywords Open-cell aluminium foam; Bacterial cellulose; Graphene oxide; Phase change materials; Multifunctional hybrid structures
keywords RIGID POLYURETHANE FOAMS; PHASE-CHANGE MATERIALS; GRAPHENE-OXIDE; MECHANICAL-PROPERTIES; FLAME-RETARDANT; AEROGELS; NANOCELLULOSE; PERFORMANCE; LIGHTWEIGHT; COMPOSITES
abstract This work focuses on exploring combinations of disintegrated bacterial cellulose nanofibres (BC) with graphene oxide (GO) (reduced and non-reduced) and phase change materials (PCMs) prepared in the form of foam-like structures. The presence of GO remarkable improves the fire-retardancy and provides dimensional stability to the foams while PCMs gives thermal energy storage capacity. The foams were exposed to methyltrimethoxysilane (MTMS) vapour to become hydrophobic which was confirmed by measuring water absorption capacity and water contact angle. To extend the multifunctionality of these nanocomposite foams, a selected composition was impregnated into an open-cell aluminium foam creating a hybrid structure (Al-BC/GO) with higher mechanical properties (increase in stress of 100 times) and high sound absorption coefficient (near 1 between 1000-4000 Hz). The low thermal conductivity confirms that this hybrid structure is a thermal insulator. These advantages highlight the potential applications of the proposed materials e.g. construction, automotive and aeronautical sectors.
publisher ELSEVIER SCI LTD
issn 0144-8617
isbn 1879-1344
year published 2020
volume 238
digital object identifier (doi) 10.1016/j.carbpol.2020.116197
web of science category Chemistry, Applied; Chemistry, Organic; Polymer Science
subject category Chemistry; Polymer Science
unique article identifier WOS:000526413700023
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  impact metrics
journal analysis (jcr 2019):
journal impact factor 7.182
5 year journal impact factor 6.89
category normalized journal impact factor percentile 96.638
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