Table 3.

Thermophysical characteristics of PLA/NR nonwoven fiber samples: before and after 20 and 50 h of UV-irradiation exposure (λ = 365 nm).

NR, wt.%	Tg, °C (Δ ± 0.5 °C)			Tm, °C (Δ ± 0.5 °C)			Tc, °C (Δ ± 0.5 °C)			χcr, % (Δ ± 1%)
	0 h	20 h	50 h	0 h	20 h	50 h	0 h	20 h	50 h	0 h	20 h	50 h
0	60	66	67	164	168	169	101	104	106	33	38	40
5	65	65	66	168	167	166	105	104	103	36	38	38
10	66	63	65	169	163	167	105	102	104	37	39	39
15	65	65	66	168	165	167	104	103	101	36	37	38