Composite films of hdpe with sio2 and zro2 nanoparticles: The structure and interfacial effects
Nabiyev A.A. Olejniczak A. Islamov A.Kh. Pawlukojc A. Ivankov O.I. Balasoiu M. Zhigunov A. Nuriyev M.A. Guliyev F.M. Soloviov D.V. Azhibekov A.K. Doroshkevich A.S. Ivanshina O.Yu. Kuklin A.I.
October 2021MDPI
Nanomaterials
2021#11Issue 10
Herein, we investigated the influence of two types of nanoparticle fillers, i.e., amorphous SiO2 and crystalline ZrO2, on the structural properties of their nanocomposites with high-density polyethylene (HDPE). The composite films were prepared by melt-blending with a filler content that varied from 1% to 20% v/v. The composites were characterized by small-and wide-angle x-ray scattering (SAXS and WAXS), small-angle neutron scattering (SANS), Raman spectroscopy, differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). For both fillers, the nanoaggregates were evenly distributed in the polymer matrix and their initial state in the powders determined their surface roughness and fractal character. In the case of the nano-ZrO2 filler, the lamellar thickness and crystallinity degree remain unchanged over a broad range of filler concentrations. SANS and SEM investigation showed poor interfacial adhesion and the presence of voids in the interfacial region. Temperature-programmed SANS investigations showed that at elevated temperatures, these voids become filled due to the flipping motions of polymer chains. The effect was accompanied by a partial aggregation of the filler. For nano-SiO2 filler, the lamellar thickness and the degree of crystallinity increased with increasing the filler loading. SAXS measurements show that the ordering of the lamellae is disrupted even at a filler content of only a few percent. SEM images confirmed good interfacial adhesion and integrity of the SiO2/HDPE composite. This markedly different impact of both fillers on the composite structure is discussed in terms of nanoparticle surface properties and their affinity to the HDPE matrix.
Fractal , Interface , Lamellar thickness , Polymer-matrix nanocomposite , SANS , SAXS
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ANAS Institute of Radiation Problems, Baku, AZ1143, Azerbaijan
Joint Institute for Nuclear Research, Dubna, 141980, Russian Federation
Faculty of Chemistry, Nicolaus Copernicus University, Torun, 87-100, Poland
Institute of Nuclear Chemistry and Technology, Warsaw, 03-195, Poland
Institute for Safety Problems of Nuclear Power Plants, NAS of Ukraine, Kiev, 07270, Ukraine
Moscow Institute of Physics and Technology, Dolgoprudny, 141701, Russian Federation
Horia Hulubei National Institute of Physics and Nuclear Engineering, P.O. Box MG-6, Bucharest-Magurele, RO-077125, Romania
Institute of Macromolecular Chemistry, Czech Academy of Sciences, Praha, CZ-162 06, Czech Republic
Faculty of Civil Engineering, Azerbaijan University of Architecture and Construction, Baku, AZ1073, Azerbaijan
Institute of Natural Science, Korkyt Ata Kyzylorda University, Kyzylorda, 120001, Kazakhstan
The Institute of Nuclear Physics, Ministry of Energy, Almaty, 050032, Kazakhstan
Donetsk Institute for Physics and Engineering Named after O.O. Galkin, NAS of Ukraine, Kiev, 03028, Ukraine
ANAS Institute of Radiation Problems
Joint Institute for Nuclear Research
Faculty of Chemistry
Institute of Nuclear Chemistry and Technology
Institute for Safety Problems of Nuclear Power Plants
Moscow Institute of Physics and Technology
Horia Hulubei National Institute of Physics and Nuclear Engineering
Institute of Macromolecular Chemistry
Faculty of Civil Engineering
Institute of Natural Science
The Institute of Nuclear Physics
Donetsk Institute for Physics and Engineering Named after O.O. Galkin
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