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

• Authors: R. Pilawka , J. Kowalska , Z. Czech
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

curing process; DSC investigation; rheometric curves; Coats-Redfern method; autocatalytic curing process; Sesták-Berggren model

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2013
• Volume: 15
• Issue: 4
• Pages: 36-41

Dates

published

1 - 12 - 2013

online

31 - 12 - 2013

Contributors

author

R. Pilawka

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

author

J. Kowalska

• 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

author

Z. Czech

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

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Identifiers

DOI

10.2478/pjct-2013-0065