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Titel: Aqueous wet coatings for transparent plastic glazing
Verfasser: Winkler, Ralf-Peter
Schirra, Hermann
Sepeur, Stefan
Wegner, Iris
Schmidt, Helmut K.
Arpac, Ertugrul
Sprache: Englisch
Erscheinungsjahr: 1999
Quelle: High-performance coatings for transparent systems in large-area and, or high-volume applications : September 6 - 10, 1998 / 2nd International Conference on Coatings on Glass, ICCG. [H. Pulker ..., ed.]. - Amsterdam : Elsevier, 1999, S. 312-314
SWD-Schlagwörter: Siliciumdioxid
Silane
Aluminium oxydatum
Zirkoniumdioxid
Verdunstung
Hydrolyse
Kondensation
Organisches Lösungsmittel
Nanokomposit
DDC-Sachgruppe: 620 Ingenieurwissenschaften und Maschinenbau
Dokumentart : InProceedings (Aufsatz / Paper einer Konferenz etc.)
Kurzfassung: Electrostatically stabilized particulate sols, e.g. aqueous silica or alumina sols, have been surface-modified to reduce the particle/particle interaction and to obtain electrosterically stabilized sols. Epoxy functionalized alkoxysilanes were used as surface modifiers for alumina, silica or zirconia particles to achieve water dispersible nanoparticulate coating materials. After evaporating the organic solvent (produced by hydrolysis and condensation) aqueous sol-gel coatings have been prepared with organic solvent contents below 5%. The storage stability of these materials has been investigated by Si-29-NMR. An amino functionalized alkoxysilane was used as condensation catalyst and the nanocomposite material was thermally cured at 130 degrees C after flow or spray coating on pretreated polycarbonate substrates. The coatings show excellent adhesion which was shown by cross cut and tape test. After 1000 cycles Taber abrasion test (CS-10F, 500 g, DIN 52347) losses of transmittance due to scattering of 2-6% were achieved with a coating thickness of about 5 mu m.
Link zu diesem Datensatz: urn:nbn:de:bsz:291-scidok-29280
hdl:20.500.11880/24676
http://dx.doi.org/10.22028/D291-24620
ISBN der Druckausgabe: 0-444-50247-5
SciDok-Publikation: 6-Jul-2010
Fakultät: Sonstige Einrichtungen
Fachrichtung: SE - INM Leibniz-Institut für Neue Materialien
Fakultät / Institution:INM
SE - Sonstige Einrichtungen

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