Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
780194 | International Journal of Adhesion and Adhesives | 2006 | 4 Pages |
Abstract
A high content of nano-sized silica, alumina and titania was embedded in epoxy Novolac adhesives. By grafting a glycidyloxypropyl functionalized trialkoxysilane on different nanoparticles polymerization-active fillers were prepared. 29Si NMR and MALDI-TOF mass spectrometry revealed oligomeric siloxane structures present on the surface of coated nanoparticles. In heat-induced polymerization reactions these surface-modified nanoparticles form covalent crosslinks to the epoxy resin, thus efficiently modifying the viscoelastic properties. The reinforced nanocomposites revealed shifts of the glass transition temperatures of about 20 K pointing to the improved thermal stability.
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Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
F. Bauer, U. Decker, H. Ernst, M. Findeisen, H. Langguth, R. Mehnert, V. Sauerland, R. Hinterwaldner,