The Optimum Dispersion of Carbon Nanotubes for Epoxy Nanocomposites: Evolution of the Particle Size Distribution by Ultrasonic Treatment

Figure 15

Particle size distributions of CNTs (symbols) at different sonication times at 40% tip amplitude: 10 min (♦), 1 h (●), 2 h (■), and 3 h (▲). The dotted lines show the corresponding fitted log-normal distributions.