Optical Properties of Polypropylene upon Recycling

Table 2

Cooling rates imposed during solidification and average radius of the spherulites.

Recycling steps	Cooling rate at 70°C (K/s)	Radius (𝜇m)
0	0.3	8.5±3
0	5	Not detectable
0	110	n.d.
5	0.3	8.8±3
5	5	4.8±2
5	170	n.d.
10	0.3	20±3
10	5	5.8±2
10	180	n.d.