Curing of epoxy resins with dicyandiamide and urones
Article first published online: 10 MAR 2003
Copyright © 1993 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 50, Issue 8, pages 1453–1459, 20 November 1993
How to Cite
Güthner, T. and Hammer, B. (1993), Curing of epoxy resins with dicyandiamide and urones. J. Appl. Polym. Sci., 50: 1453–1459. doi: 10.1002/app.1993.070500817
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 19 FEB 1993
- Manuscript Received: 16 DEC 1992
The curing of epoxy resins using dicyandiamide (DICY) and combinations of DICY with several uron accelerators as curing agents is investigated. DSC, FTIR, mechanical, and sorption measurements indicate complex multistage curing processes. There is no evidence that the curing reaction is catalyzed by DICY. The optimum stoichiometry is determined as 7 epoxy units per 1 molecule DICY. Contour plots for curing reactions with DICY in presence of Fenuron 3c or TDI-uron 3d give some information for optimizing technical formulations. © 1993 John Wiley & Sons, Inc.