Gas evolution in self-extinguishing and insulative nanopolysaccharide-based hybrid foams
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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2024-12-15
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Mcode
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Language
en
Pages
9
Series
Carbohydrate Polymers, Volume 346
Abstract
Lightweight, energy-efficient materials in building construction typically include polymeric and composite foams. However, these materials pose significant fire hazards due to their high combustibility and toxic gas emissions, including carbon monoxide and hydrogen cyanide. This study delves into the latter aspects by comparing hybrid systems based on nanofiber-reinforced silica-based Pickering foams with a synthetic reference (polyurethane foams). The extent and dynamics of fire retardancy and toxic gas evolution were assessed, and the results revealed the benefits of combining the thermal insulation of silica with the structural strength of biobased nanofibers, the latter of which included anionic and phosphorylated cellulose as well as chitin nanofibers. We demonstrate that the nanofiber-reinforced silica-based Pickering foams are thermal insulative and provide both fire safety and energy efficiency. The results set the basis for the practical design of hybrid foams to advance environmental sustainability goals by reducing energy consumption in built environments.Description
| openaire: EC/H2020/788489/EU//BioELCell
Keywords
fire retardancy, gas evolution, insulation, nanocellulose, pickering foams, polysaccharide
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Citation
Abidnejad, R, Robertson, D, Khakalo, A, Gholami Haghighi Fard, M, Seppälä, A, Pasquier, E, Tardy, B, Dufau Mattos, B & Rojas Gaona, O 2024, ' Gas evolution in self-extinguishing and insulative nanopolysaccharide-based hybrid foams ', Carbohydrate Polymers, vol. 346, 122646 . https://doi.org/10.1016/j.carbpol.2024.122646
