The Effect of Ultrasonic Treatment on Thermal Stability of the Cured Epoxy/Layered Silicate Nanocomposite

Table 1

The analysis of glass transition temperatures during the second heating process.

Sample	Onset of glass transition temperature, 𝑇𝑔 (°C)	Inflection slope of glass transition, 𝑚𝑔 (mW/min)	The specific heat increment, Δ𝑐𝑝𝑔 at glass transition (J/gK)
Ep 530B US 1 hr	85.03	0.69	0.393
Ep 530B US 3 hr	82.57	0.78	0.439