Table 3.

The crystallization half-time (t_½), Avrami constant (n), and crystallization rate (K) of Ti- and Sb-PET resins for melt–crystallization at different isothermal temperatures (195 °C, 205 °C).

Sample	Temperature (°C)	t1/2 (s)	n		K (s−1)
			n 1	n 2	K 1	K 2
Ti-PET	195	239	1.1	2.7	27.5 × 10−6	2.2 × 10−7
	205	471	1.4	2.7	4.0 × 10−6	0.5 × 10−7
Sb-PET	195	139	-	2.4	-	43.0 × 10−7
	205	241	1.3	2.5	25.1 × 10−6	7.9 × 10−7