Thermogravimetric analysis of melamine cyanurate

Thermogravimetric analysis of melamine cyanurate

The results of thermogravimetric analysis of melamine cyanurate and Melamine/cyanuric acid and their mixtures are shown as follows:

As can be seen from the results of thermo gravimetry, the initial thermal decomposition temperature of melamine, cyanuric acid and melamine cyanurate is respectively 288 °C, 345 °C and 362 °C. The thermal stability of MCA is higher than that of melamine and cyanuric acid, the thermal stability is consistent with the activation energy data in the table.

From the result of thermo gravimetric of the mixture of melamine and cyanuric acid, the decomposition of the mixture has gone through three stages, the first stage is the same as that of Melamine, which is the decomposition of Melamine, and the second stage is the decomposition of cyanuric acid, the decomposition process of the third stage was consistent with the melamine cyanurate, which indicated that the MCA was formed by the reaction of Melamine and cyanuric acid during heating. This is consistent with the fact that the MCA can be synthesized in the dry state.