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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Khakalo, Alexey
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2023Biodegradable Cellulose Nanocomposite Substrate for Recyclable Flexible Printed Electronicscitations
- 2022Nanocellulose Removes the Need for Chemical Crosslinking in Tannin-Based Rigid Foams and Enhances Their Strength and Fire Retardancycitations
- 2021Manufacture of all-wood sawdust-based particle board using ionic liquid-facilitated fusion processcitations
- 2021Rheological behavior of high consistency enzymatically fibrillated cellulose suspensionscitations
- 2020Wood based materials with ionic liquid fusion
- 2019Anti-oxidative and UV-absorbing biohybrid film of cellulose nanofibrils and tannin extractcitations
- 2018The effect of oxyalkylation and application of polymer dispersions on the thermoformability and extensibility of papercitations
- 2018Protein-mediated interfacial adhesion in composites of cellulose nanofibrils and polylactidecitations
- 2017Layer-by-layer assembled hydrophobic coatings for cellulose nanofibril films and textiles, made of polylysine and natural wax particles
- 2017Protein Adsorption Tailors the Surface Energies and Compatibility between Polylactide and Cellulose Nanofibrilscitations
- 2017Advanced Structures and Compositions for 3D Forming of Cellulosic Fiberscitations
- 2017Advanced Structures and Compositions for 3D Forming of Cellulosic Fibers:Dissertation
- 2016Effect of polyurethane addition on the strength, extensibility and 3D formability of paper and board
- 2016Combined mechanical and chemical modifications towards super-stretchable paper-based materials
Places of action
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article
Nanocellulose Removes the Need for Chemical Crosslinking in Tannin-Based Rigid Foams and Enhances Their Strength and Fire Retardancy
Abstract
| openaire: EC/H2020/788489/EU//BioELCell Funding Information: The authors acknowledge funding support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No 788489, “BioElCell”), The Canada Excellence Research Chair Program (CERC-2018-00006), FAPERGS (Research Support Foundation of the State of RS), process number: 21/2551-0000603-0, the Canada Foundation for Innovation (Project No. 38623), and São Paulo Research Foundation (FAPESP, grant no. 2021/12071-6). The authors also appreciate the support of the Academy of Finland Bioeconomy Flagship, FinnCERES Materials Cluster, and the Brazilian Nanotechnology National Laboratory (LNNano/CNPEM) for micro-CT runs. ; Thermal insulation and fire protection are two of the most critical features affecting energy efficiency and safety in built environments. Together with the associated environmental footprint, there is a strong need to consider new insulation materials. Tannin rigid foams have been proposed as viable and sustainable alternatives to expanded polyurethanes, traditionally used in building enveloping. Tannin foams structure result from polymerization with furfuryl alcohol via self-expanding. We further introduce cellulose nanofibrils (CNFs) as a reinforcing agent that eliminates the need for chemical crosslinking during foam formation. CNF forms highly entangled and interconnected nanonetworks, at solid fractions as low as 0.1 wt %, enabling the formation of foams that are ca. 30% stronger and ca. 25% lighter compared to those produced with formaldehyde, currently known as one of the best performers in chemically coupling tannin and furfuryl alcohol. Compared to the those chemically crosslinked, our CNF-reinforced tannin foams display higher thermal degradation temperature (peak shifted upward, by 30-50 °C) and fire resistance (40% decrease in mass loss). Furthermore, we demonstrate partially hydrophobized CNF to tailor the foam microstructure and derived physical-mechanical ...