Study of Antioxidant Effectiveness of Kraft Lignin in HDPE

Table 2

Statistical results of repeatability in the onset temperature for the oxidation of HDPE without additive.

(°C/min)	Onset temperature oxidation (, °C)
	Run 1	Run 2	Run 3		SD	RSD (%)
3	210,18	210,09	210,15	210,1	0,046	0,0002
5	215,35	215,40	215,39	215,4	0,026	0,0001
10	223,80	223,75	223,78	223,8	0,025	0,0001
15	226,35	226,30	226,31	226,3	0,026	0,0001
20	230,10	230,15	230,11	230,1	0,026	0,0001

= average, SD = standard deviation, and RSD = relative standard deviation (%).