Cure Kinetics of the Hydroxyl-Epoxide Reaction in DGEBA Epoxy Hardened with Diethanolamine

The curing of a diglycidyl ether of bisphenol-A Epoxy (Epon 828) with diethanolamine (DEA) involves a fast amine-epoxide reaction followed by a slower hydroxyl-epoxide reaction. At curing temperatures below 70$^{\circ}$C, the time scales of these two reactions are well separated. This permits the study of the hydroxyl addition as an ``isolated'' reaction. The reaction is strongly auto-catalyzed and is well fit to a modified form of the Kamal equation. Here we study the temperature dependence of the Kamal parameters with modulated differential scanning calorimetry and infrared spectroscopy.

*Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2015.MAR.P1.315

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Bulletin of the American Physical Society

APS March Meeting 2015

Volume 60, Number 1

Monday–Friday, March 2–6, 2015; San Antonio, Texas

Session P1: Poster Session II (11:00 am - 2:00 pm)

Abstract: P1.00315 : Cure Kinetics of the Hydroxyl-Epoxide Reaction in DGEBA Epoxy Hardened with Diethanolamine*

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