Figure 4

TG and DTG curves of (a) PW, (b) MPW1, (c) MPW2 and (d) MPW3 with heating rates of 10, 20, 30 and 40 °C/min in nitrogen atmosphere.

TG and DTG curves of (a) PW, (b) MPW1, (c) MPW2 and (d) MPW3 with heating rates of 10, 20, 30 and 40 °C/min in nitrogen atmosphere.