Pectin-organophilized ZnO nanoparticles as sustainable fillers for high-density polyethylene composites
| Autor: | Joanna Cybińska, Marta Fiedot-Toboła, Bartłomiej Kryszak, Roman Jędrzejewski, Anna Dmochowska, Wojciech Stawiński |
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| Rok vydání: | 2021 |
| Předmět: |
Thermogravimetric analysis
Materials science 02 engineering and technology engineering.material Biochemistry 03 medical and health sciences chemistry.chemical_compound Differential scanning calorimetry X-Ray Diffraction Structural Biology Elastic Modulus Tensile Strength Spectroscopy Fourier Transform Infrared Thermal stability Composite material Molecular Biology 030304 developmental biology chemistry.chemical_classification 0303 health sciences Nanocomposite Calorimetry Differential Scanning General Medicine Polymer Polyethylene 021001 nanoscience & nanotechnology Kinetics chemistry Thermogravimetry engineering Nanoparticles Pectins Biopolymer High-density polyethylene Zinc Oxide Crystallization 0210 nano-technology |
| Zdroj: | International Journal of Biological Macromolecules. 182:1832-1842 |
| ISSN: | 0141-8130 |
| Popis: | A series of nanocomposites made of high-density polyethylene (HDPE) and 10 wt% zinc oxide nanoparticles (ZnO NPs) were produced by extrusion and injection molding. The nanoparticles were prepared via a green way using the pectin-based banana peel extract as the stabilizer and a proper dispersion-providing agent. The fillers were well-dispersed in the matrix and the composites exhibited improved functional characteristics such as increased thermal stability and mechanical properties. The presence of the pectin-organophilized filler had a significant impact on the crystallization process of HDPE. The kinetics of the degradation process was also altered in comparison to the pure polymer. The fire properties of the composites were enhanced as the amount of the gas products produced during their degradation was reduced, what was confirmed by thermogravimetric analysis coupled with gas products analyses (TGA/FTIR/QMS). The structure and morphology of the materials were characterized by scanning electron microscope (SEM), infrared spectroscopy (FTIR), X-ray diffraction (XRD), and differential scanning calorimetry (DSC). Additionally, the mechanical properties were tested by tensile tests. An in-depth analysis revealed that the HDPE-pectin-ZnO interactions are crucial for the structural and performance properties of the final composite. The used biopolymer reacts with ZnO via ionic interaction and through hydrogen bond in the case of HDPE. |
| Databáze: | OpenAIRE |
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