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P. Penczek, E. Rudnik, A. Zawadzka

A comparative study of the course of curing of epoxide resins with various curing agents and of thermal decomposition of the cured products

Polimery 1996, No 2, 97

DOI: dx.doi.org/10.14314/polimery.1996.097


The differential scanning calorimetry (DSC) method was used for comparative studies on the course of curing of low-molecular-weight bisphenol А-based epoxide resin with various amino compounds (including amino adducts of epoxide resin),dicyandiamide, and a biguanide derivative. The following parameters of the crosslinking process were determined: temperatures of the onset, the maximum and the end of the thermal effect of curing (T0, Tp and 7*, resp.), thermal effect of curing (AH), activation energy of this process (), its order (n) and pre-exponential coefficient (K0). Glass transition temperatures (Tg) of the cured resins were also determined. The course of the thermal decomposition of the epoxide resins cured with the above-mentioned curing agents was compared by the use of a derivatograph.

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