Breaking the nanoparticle loading-dispersion dichotomy in polymer nanocomposites with the art of croissant-making
| Autor: | Maria Crespo, Ton Peijs, Giulia Mirabello, AB Anne Spoelstra, Giovanni Santagiuliana, Harshit Porwal, Nicola M. Pugno, Han Zhang, Luca Rubini, Joseph P. Patterson, Emiliano Bilotti, Yan Li, Lorenzo Botto, Ettore Barbieri, Samuele Colonna, Olivier T. Picot, Alberto Fina |
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| Přispěvatelé: | Materials and Interface Chemistry |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Polymer nanocomposite nanoparticle dispersion Soft robotics General Physics and Astronomy Nanoparticle 02 engineering and technology Nanoparticle dispersion 010402 general chemistry 01 natural sciences Article graphene multifunctional materials nanoclay polymer nanocomposites predictive model Materials Science (all) Engineering (all) Physics and Astronomy (all) law.invention Nanomaterials law Dispersion (optics) General Materials Science Composite material chemistry.chemical_classification Graphene General Engineering Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry 0210 nano-technology |
| Zdroj: | ACS Nano ACS Nano, 12(9), 9040-9050. American Chemical Society |
| ISSN: | 1936-0851 |
| Popis: | The intrinsic properties of nanomaterials offer promise for technological revolutions in many fields, including transportation, soft robotics, and energy. Unfortunately, the exploitation of such properties in polymer nanocomposites is extremely challenging due to the lack of viable dispersion routes when the filler content is high. We usually face a dichotomy between the degree of nanofiller loading and the degree of dispersion (and, thus, performance) because dispersion quality decreases with loading. Here, we demonstrate a potentially scalable pressing-and-folding method (P & F), inspired by the art of croissant-making, to efficiently disperse ultrahigh loadings of nanofillers in polymer matrices. A desired nanofiller dispersion can be achieved simply by selecting a sufficient number of P & F cycles. Because of the fine microstructural control enabled by P & F, mechanical reinforcements close to the theoretical maximum and independent of nanofiller loading (up to 74 vol %) were obtained. We propose a universal model for the P & F dispersion process that is parametrized on an experimentally quantifiable "D factor". The model represents a general guideline for the optimization of nanocomposites with enhanced functionalities including sensing, heat management, and energy storage. |
| Databáze: | OpenAIRE |
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