RESEARCH OF NEW CATALYTIC SYSTEMS FOR THE CURING PROCESS OF EPOXY VINYL ESTER BINDERS
HEQMPW
DOI:
https://doi.org/10.25712/ASTU.2072-8921.2024.02.024Keywords:
catalytic curing systems, polymer binder, epoxy vinyl ester resinAbstract
This work was aimed at the study of catalytic systems consisting of three components (resin, initiator and catalyst), which would provide sufficient time for complete impregnation of the reinforcing filler without adding additional compounds (inhibitors) to the system. In the course of the work, catalytic systems for curing a polymer binder based on epoxy vinyl ester resin of the Derakene Momentum 411-350 and the of methyl ethyl ketone peroxide (Butanox M50)as initiator of polymerization were investigated. New complexes based on cobalt and copper salts with nitrogen-containing heterocyclic compounds were used as catalysts. Gelation time and curing time were monitored after mixing the binder components. Based on the results of differential scanning calorimetry and thermogravimetry, the dynamics of the curing and destruction processes of polymer binder samples were studied. To confirm the catalytic action of the selected complexes, activation energy values were calculated for some samples and a sample without the addition of catalysts. The cured samples were examined for hardness by the Shore method.
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Copyright (c) 2024 Yana N. Budnikova, Alexander E. Protsenko, Alexandra N. Protsenko
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