Simple Method for the Melt Extrusion of a Cellulose Nanocrystal Reinforced Hydrophobic Polymer
| Autor: | Elaine C. Ramires, Kaouther Ben Azouz, Nadia El Kissi, Winke Van den Fonteyne, Alain Dufresne |
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| Přispěvatelé: | Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Laboratoire Génie des procédés papetiers (LGP2 ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS), Dufresne, Alain |
| Rok vydání: | 2022 |
| Předmět: |
Materials science
Polymers and Plastics Nanoparticle [SPI.MECA.MEFL] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] 02 engineering and technology [SPI.MAT] Engineering Sciences [physics]/Materials 010402 general chemistry 01 natural sciences [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] [SPI.MAT]Engineering Sciences [physics]/Materials Inorganic Chemistry chemistry.chemical_compound Adsorption Materials Chemistry Thermal stability Cellulose Composite material Nanocomposite Organic Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Low-density polyethylene [CHIM.POLY]Chemical Sciences/Polymers chemistry Nanocrystal 0210 nano-technology Dispersion (chemistry) |
| Zdroj: | ACS Macro Letters ACS Macro Letters, Washington, D.C : American Chemical Society, 2011, 1 (1), pp.236-240 ACS Macro Letters, Washington, D.C : American Chemical Society, 2011, 1 (1), pp.236-240. ⟨10.1021/mz2001737⟩ |
| ISSN: | 2161-1653 |
| DOI: | 10.1021/mz2001737⟩ |
| Popis: | International audience; The rheological properties of a dispersion of cellulose nanocrystals (CNCs) in an aqueous solution of polyoxyethylene (PEO) have been investigated. A peculiar behavior is reported. Upon adding CNC, the viscosity of the suspension first decreases and then increases. Adsorption of PEO chains on the surface of the nanoparticles has been suspected. Freeze-drying of this PEO-adsorbed CNC dispersion was performed, and the ensuing lyophilizate was extruded with low density polyethylene. Compared to neat CNC-based nanocomposites, both improved dispersibility and thermal stability were observed. This simple and physical method constitutes an approach of choice for the melt processing of CNC-based nanocomposites with a hydrophobic polymeric matrix applicable at the industrial scale. |
| Databáze: | OpenAIRE |
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