Table 1.

Main mechanical properties, i.e., elastic modulus, E, tensile strength, TS, and elongation at break, EB, and fusion (ΔHf) and crystallization (ΔHc) enthalpies for neat PE and PE containing different compounds before UVB exposure.

	E [MPa]	TS [MPa]	EB [%]	ΔHf, J/g	ΔHc, J/g
PE	215 ± 5	23.3 ± 1.5	578 ± 23	117	−109
PE + 2 wt.% Ca stearate	212 ± 6	22.7 ± 1.2	625 ± 25	109	−93
PE + 3 wt.% Ca stearate	207 ± 7	23.8 ± 1.3	661 ± 27	102	−91
PE + 2 wt.% VE	191 ± 5	23.2 ± 1.3	604 ± 21	105	−98
PE + 3 wt.% VE	177 ± 5	22.4 ± 1.2	626 ± 22	104	−96
PE + 2 wt.% FA	209 ± 6	24.5 ± 1.6	624 ± 23	106	−97
PE + 3 wt.% FA	211 ± 7	21.6 ± 1.3	642 ± 21	102	−101