Modeling of the curing process of a polymer resin and changes in microhardness in its volume

Postnov V.I., Kachura S.M., Veshkin E.A
UDC
678.8
DOI
10.18577/2307-6046-2021-0-4-92-99
Article PDF (Russian) (758.95 KB)
How to cite
Postnov V.I., Kachura S.M., Veshkin E.A Modeling of the curing process of a polymer resin and changes in microhardness in its volume // Proceedings of VIAM. 2021. No. 4. DOI: 10.18577/2307-6046-2021-0-4-92-99. URL: https://test.viam.ru/en/journal/2021/4/7
Keywords
polymer composite materials, binder EDT-69N, thermophysical modeling, finite element method, microhardness, degree of conversion.
Abstract

Curing parameters have the greatest impact on the physical and mechanical properties of FRP, therefore their optimum value is of particular importance for obtaining quality products. During curing temperature of the inner layers of the FRP can increase unevenly, which can lead to the formation of a gradient in the degree of conversion and heterogeneity of physical and mechanical properties. The article is devoted to the development of a mathematical model of the curing process of the EDT-69N resin, taking into account the kinetic parameters of curing and implementation thermophysical modeling using the finite element method.The correspondence of the family of curves for the degree of conversion along the sample cross-section and the family of microhardness curves is also shown.

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