Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Curing

The Rheological Properties of Isothermal Curing of DGEBA/ TETA Epoxy System

Adnan A. Abdul Razak; Najat j. Saleh; Maryem Emad

Engineering and Technology Journal, 2015, Volume 33, Issue 5, Pages 1095-1112

In this study viscosity (η) of diglycidyl ether of bisphenol A / triethylenetetramine (DGEBA/TETA) system were measured through curing using a Brookfield viscometer at four different temperatures (30, 45, 60 and 80) °C. The measurements were carried out for two hardener/resin ratios (13 and 20) phr. The gel time was calculated for each hardener/resin ratio formulation; from the viscosity experimental data. The results showed that the gel time decrease with increasing curing temperature for each hardener/resin ratio formulation. Viscosity profiles were described by a model based on the Boltzmann function. The fitted results agreed well with the experimental values.