Rate Equations used in Kinetic Analysis:
Therefore, it is probable to predict the life time for say 10 percent mass loss as a function of temperature. The benefits method for studying degradation kinetics is called as modulated temperature TG. This uses a temperature profile in that a sinusoidal temperature fluctuates upon conventional linear rising temperature. The curves displaying the heating rate (dT/dt) and rate of mass loss (-m/dt) make the effect of the temperature modulation apparent. Ea for the chemical decomposition is and compute as per to Eq. 10.13.
Ea = R [T2av - (0.5 T amp) 2] L / Tamp
where Tav is the average thermodynamic temperature here Tamp is the amplitude of the temperature modulation and L is the logarithm of the amplitude of the rate of mass loss over one modulation. The Plots of mass and Ea as a function of temperature. The mt-TG is an associative new method that promises to simplify the acquisition of kinetic data. The a few common kinetic models used in TGA studies are tabulated in Table 10.2. The major difficulty in studying kinetic analysis using TGA is deciding that of like a large number for equation. A proposed for the model is being observed. This is additional compounded because several equations might provide extremely same curves and therefore appear to give evenly good to some experimental data.