Cure kinetics and shinkage model for epoxy-amine systems.

J. A RAMOS; N. PAGANI; C.C RICARDI; J. BORRAJO; S.N. GOYANES; I. MONDRAGON

Los Cocos, Córdoba, Argentina

Congreso; III Argentine – Chilean Symposium, ARCHIPOL 05; 2005

PLAPIQUI - INTEMA - INTEC - UNC

Few work that join volume changes monitored by pressure-volume-temperature análisis through the cure kinetics of thermoset resins have been published. Since the density of thermoset materials depends on the degree of crosslinking, pressure-volume-temperature (PVT) experiments were performed to follow the cure shrinkage of a bifunctional epoxy resin cure with 4,4´,- methylenebis (3-chloro-2,6-diethylaniline), MCDEA. The diamine was used at the stoichiometric ratio of epoxy to amino hydrogen groups. PVT experiments allow to measure the specific volume at a defined temperature and pressure as a function of time. In addition, differential scanning calorimetric measurements were carried out to model the kinetics of curing.