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Titel: Epoxy Resin Nanocomposites: The Influence of Interface Modification on the Dispersion Structure—A Small-Angle-X-ray-Scattering Study
VerfasserIn: Feichtenschlager, Bernhard
Pabisch, Silvia
Svehla, Jakob
Peterlik, Herwig
Sajjad, Muhammad
Koch, Thomas
Kickelbick, Guido
Sprache: Englisch
Titel: Surfaces
Bandnummer: 3
Heft: 4
Verlag/Plattform: MDPI
Erscheinungsjahr: 2020
Freie Schlagwörter: epoxy resin
nanocomposite
interface tailoring
nanoparticles
zirconia
silica
DDC-Sachgruppe: 500 Naturwissenschaften
540 Chemie
600 Technik
Dokumenttyp: Journalartikel / Zeitschriftenartikel
Abstract: The surface functionalization of inorganic nanoparticles is an important tool for the production of homogeneous nanocomposites. The chemical adaptation of the nano-filler surface can lead to effective weak to strong interactions between the fillers and the organic matrix. Here we present a detailed systematic study of different surface-functionalized particles in combination with a SAXS method for the systematic investigation of the interface interaction in the development of epoxy nanocomposites. We investigated the effect of surface modification of spherical SiO2 nanoparticles with 9 nm and 72 nm diameter and crystalline ZrO2 nanoparticles with 22 nm diameter on the homogeneous distribution of the fillers in diethylenetriamine (DETA) cured bisphenol-F-diglycidylether epoxy resin nanocomposites. Unmodified nanoparticles were compared with surface-modified oxides having diethylene glycol monomethyl ethers (DEG), 1,2-diols, or epoxy groups attached to the surface. The influence of surface modification on dispersion quality was investigated by transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS) for inorganic filler contents of 3, 5 and 10 wt%. It was shown that the dispersion quality can be optimized by varying the coupling agent end group to obtain homogeneous and transparent nanomaterials. UV/VIS measurements confirmed the transparency/translucency of the obtained materials. The relationship between particle–matrix interaction and particle–particle interaction plays a decisive role in homogeneity and is controlled by the surface groups as well as by the type, size, and morphology of the nanoparticles themselves.
DOI der Erstveröffentlichung: 10.3390/surfaces3040044
Link zu diesem Datensatz: urn:nbn:de:bsz:291--ds-329569
hdl:20.500.11880/30460
http://dx.doi.org/10.22028/D291-32956
ISSN: 2571-9637
Datum des Eintrags: 27-Jan-2021
Bezeichnung des in Beziehung stehenden Objekts: Supplementary Materials
In Beziehung stehendes Objekt: http://www.mdpi.com/2571-9637/3/4/44/s1
Fakultät: NT - Naturwissenschaftlich- Technische Fakultät
Fachrichtung: NT - Chemie
Professur: NT - Prof. Dr. Guido Kickelbick
Sammlung:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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