Publica
Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. Modellreaktionen und Modellharze auf Epoxidharze
| Groß, A.; Brockmann, W.; Henkhaus, R. ; Deutsche Gesellschaft für Chemisches Apparatewesen, Chemische Technik und Biotechnologie e.V. -DECHEMA-, Frankfurt/Main:
Fertigungssystem Kleben '89
Frankfurt/Main; Weinheim: VCH Verlagsgesellschaft, 1990 (Dechema-Monographien 119)
ISBN: 3-527-10215-9
pp.163-176 |
| Fachtagung Fertigungssystem Kleben (FSK) <3, 1989, Bremen> |
|
| German |
| Conference Paper |
| Fraunhofer IFAM () |
| Epoxid; Klebstoff; Mechanismus; Modell; Schmelzklebstoff; Vernetzung |
Abstract
With a monofunktional epoxy compound the reaction behaviour of cold curing epoxy resins was simulated and then investigated with thin layer chromatography (TLC). The monomer reaction products allow mass- and NMR-spectroskopical analyses which show that only secondary Beta-aminoalcohols are formed. The model epoxy reacts with primary amines in three steps due to the different nucleophilicity of each functional group. This fact directly leads to postcuring epoxy hot-melts. At room temperature a thermoplastic polymer with adhesional properties is formed, which can be post-cured at higher temperatures into a duromer resin.