Construction of the diagram of isothermal transformations of thermosetting polymers on the example of the adhesive matrix

Naydenov D.D., Khaskov M.A., Petrova A.P.
UDC
678.8
DOI
10.18577/2307-6046-2020-0-1-47-57
Article PDF (Russian) (1.01 MB)
How to cite
Naydenov D.D., Khaskov M.A., Petrova A.P. Construction of the diagram of isothermal transformations of thermosetting polymers on the example of the adhesive matrix // Proceedings of VIAM. 2020. No. 1. DOI: 10.18577/2307-6046-2020-0-1-47-57. URL: https://test.viam.ru/en/journal/2020/1/5
Keywords
adhesive composition, curing, time–temperature–transformation diagram, curing curve, DSC, gelation, degree of conversion.
Abstract

The paper gives an idea of the processes taking place in the epoxy adhesive system during its curing. Kinetics of curing of thermosetting component of adhesive system by DSC method is investigated. A kinetic model of curing is proposed and experimentally confirmed. The dependence of the glass transition temperature on the degree of curing was determined experimentally. The analysis of the obtained experimental data is carried out and the diagram of isothermal transformations (TTT-diagram) of the studied composition is constructed. Isoconversion curves are applied to the resulting curve, which can be used to predict the storage time of the adhesive composition.

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