Please use this identifier to cite or link to this item: doi:10.22028/D291-24635
Title: UV-curable epoxy based nanocomposite adhesive for applications in integrated optics
Author(s): Koch, Thomas
Mennig, Martin
Schmidt, Helmut K.
Language: English
Year of Publication: 1999
OPUS Source: Ceramics - getting into the 2000's / ed. by P. Vincenzini. — Part E. - Faenza : Techna, 1999. — (Advances in science and technology ; 17), S. 681-688
SWD key words: Epoxy-Gruppe
Integrierte Optik
DDC notations: 620 Engineering and machine engineering
Publikation type: Conference Paper
Abstract: UV-curable epoxy based adhesive was filled with nansize SiO2-particles with particle diameters of about 10 nm (SiO2-content in the composite adhesives up to 35 wt.-%). Viscosities of the filled uncured adhesives were kept low at about 1000 mPa-s to 2000 mPa-s by surface modification of the particles. Volume shrinkage rate was reduced from 5.0% (unfilled system) to 3.6 % in the case of a composite material with 20 wt.-% (approx. 12 vol.-%) nanosized SiO2. Hence the coefficient of thermal expansion in a temperature range from -50°C to 100°C, was reduced from 70.10(-6) K-1 to 57.10(-6) K-1. The refractive index decreased from 1.525 to 1.514 at a wavelength of 644 nm. Transmission electron microscopy (TEM) investigations demonstrate that the nanosized SiO2-particles are not agglomerated in the cured material.
Link to this record: urn:nbn:de:bsz:291-scidok-29431
ISBN: 88-86538-18-6
Date of registration: 30-Aug-2010
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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