| People | Locations | Statistics |
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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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Picken, S. J.
Delft University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Role of Molecular Water Layer State on Freezing Front Propagation Rate and Mode Studied with Thermal Imagingcitations
- 2023Affine Deformation and Self-Assembly Alignment in Hydrogel Nanocomposites
- 2023Affine Deformation and Self-Assembly Alignment in Hydrogel Nanocomposites
- 2023Enhancing the sensitivity of silicon photonic ultrasound sensors by optimizing the stiffness of polymer cladding
- 2022Extraction of low molecular weight polyhydroxyalkanoates from mixed microbial cultures using bio-based solventscitations
- 2022High-Strength Liquid Crystal Polymer-Graphene Oxide Nanocomposites from Watercitations
- 2016Water Sorption and Diffusion in (Reduced) Graphene Oxide-Alginate Biopolymer Nanocompositescitations
- 2016Composition dependent properties of graphene (oxide)-alginate biopolymer nanocompositescitations
- 2016Rheological investigation of specific interactions in Na Alginate and Na MMT suspensioncitations
- 2015Origin of highly ordered sodium alginate/montmorillonite bionanocompositescitations
- 2013Self-healing supramolecular polymer nanocomposites
- 2011Three-phase Lewis-Nielsen model for the thermal conductivity of polymer nanocompositescitations
- 2009Thermal behaviour of epoxy resin filled with high thermal conductivity nanopowderscitations
- 2007Vapor diffusion in porous/nonporous polymer coatings by dielectric sorption analysiscitations
- 2005Multiple glass transitions in the plastic crystal phase of triphenylene derivatescitations
- 2000Highly ordered side-chain liquid-crystalline polymers from maleic anhydride and swallow-tailed 1-alkenes having two mesogens
Places of action
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article
Affine Deformation and Self-Assembly Alignment in Hydrogel Nanocomposites
Abstract
<p>Tailoring the order in hierarchical structures is a key goal of bioinspired nanocomposite design. Recently, nacre-like materials have been developed by solvent evaporation methods that are scalable and attain advanced functionalities. However, understanding the alignment mechanisms of 2D fillers, nanosheets, or platelets remains challenging. This work explores possible pathways for nanocomposite ordering via orientation distribution functions. We demonstrate how the immobilization of 2D materials via (pseudo)network formation is crucial to alignment based on evaporation. We show a modified affine deformation model that describes such evaporative methods. In this, a gel network develops enough yield stress and uniformly deforms as drying proceeds, along with the immobilized particles, causing an in-plane orientation. Herein, we tested the dominance of this approach by using a thermo-reversible gel for rapid montmorillonite (MMT) particle fixation. We researched gelatin/MMT as a model system to investigate the effects of high loadings, orientational order, and aspect ratio. The nacre-like nanocomposites showed a semiconstant order parameter (⟨P<sub>2</sub>⟩ ∼ 0.7) over increasing nanofiller content up to 64 vol % filler. This remarkable alignment resulted in continuously improved mechanical and water vapor barrier properties over unusually large filler fractions. Some variations in stiffness and diffusion properties were observed, possibly correlated to the applied drying conditions of the hybrid hydrogels. The affine deformation strategy holds promise for developing next-generation advanced materials with tailored properties even at (very) high filler loadings. Furthermore, a gelling approach offers the advantages of simplicity and versatility in the formulation of the components, which is useful for large-scale fabrication methods.</p>