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Funct. Mater. 2017; 24 (4): 673-677.

doi:https://doi.org/10.15407/fm24.04.673

Calorimetric study on relaxation characteristics of epoxy polymers

O.S.Tulzhenkova, T.G.Sichkar, L.K.Yanchevsky, A.M.Shut

National Pedagogical Dragomanov University,9 Pirogova Str., 01601 Kyiv, Ukraine

Abstract: 

It is proposed a method for identifying the set of relaxation characteristics of glass epoxy polymers, which allows to separate the vitrification process from the glass overlay processes of different nature (post-curing). Using the example of bisphenol epoxy resin ED-16 a method of determining the optimal amount of curing agent is developed, which achieves the maximum degree of conversion of epoxy groups. The proposed method allows to determine the degree of conversion of the epoxy composition even at the final stages of the reaction and in the final compositions.

Keywords: 
epoxy polymers, activation energy, glass transition range, conversion level.
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