<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The kinetics of the curing process of isocyanate-epoxy materials hardened in the presence of 1- substituted imidazole derivatives was studied by the Coast-Redfern method. The extent of a conversion parameter of the curing process in two ways was calculated: DSC (peak area integration) and rheology (viscosity changes). The activation energy values were determined for epoxy-isocyanate cured in the presence of 0.5; 1.0 and 2.0 phr 1-substituted imidazole derivatives respectively. Increasing of accelerators amount results in decreasing the activation energy and other kinetic parameters.</p></abstract>

The kinetics of the curing process of isocyanate-epoxy materials hardened in the presence of 1- substituted imidazole derivatives was studied by the Coast-Redfern method. The extent of a conversion parameter of the curing process in two ways was calculated: DSC (peak area integration) and rheology (viscosity changes). The activation energy values were determined for epoxy-isocyanate cured in the presence of 0.5; 1.0 and 2.0 phr 1-substituted imidazole derivatives respectively. Increasing of accelerators amount results in decreasing the activation energy and other kinetic parameters.

Effect of 1-substituted imidazole derivatives for the curing process of epoxy- -isocyanate composition

West Pomeranian University of Technology, Szczecin, Polymer Institute, Pulaskiego 10, 70-322 Szczecin, Poland

West Pomeranian University of Technology, Szczecin, Institute of Chemical Organic Technology, Pulaskiego 10, 70-322 Szczecin, Poland

2West Pomeranian University of Technology, Szczecin, Institute of Chemical Organic Technology, Pulaskiego 10, 70-322 Szczecin, Poland

Polish Journal of Chemical Technology

The kinetics of the curing process of isocyanate-epoxy materials hardened in the presence of 1- substituted imidazole derivatives was studied by the...

Effect of 1-substituted imidazole derivatives for the curing process of epoxy- -isocyanate composition

Publié en ligne: 31 déc. 2013

Pages: 36 - 41

DOI: https://doi.org/10.2478/pjct-2013-0065

This content is open access.