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

R. Pilawka; J. Kowalska; Z. Czech

doi:10.2478/pjct-2013-0065

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

Green Sciences

Volume 15 (2013): Issue 4 (December 2013)

By: R. Pilawka, J. Kowalska and Z. Czech

Open Access

|Dec 2013

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.

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Articles in this issue

DOI: https://doi.org/10.2478/pjct-2013-0065 | Journal eISSN: 3072-0389

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Language: English

Page range: 36 - 41

Published on: Dec 31, 2013

Published by: West Pomeranian University of Technology, Szczecin

In partnership with: Paradigm Publishing Services

Publication frequency: Volume open

Keywords:

curing process,

DSC investigation,

rheometric curves,

Coats-Redfern method,

autocatalytic curing process,

Sesták-Berggren model

Related subjects:

Industrial chemistry,

Biotechnology,

Chemical engineering,

Process engineering

© 2013 R. Pilawka, J. Kowalska, Z. Czech, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons License.

Volume 15 (2013): Issue 4 (December 2013)