Dose HDPEcolorless LDPE colorless LDPEblue/2craft layer PET
kGy E (%) T (Mpa) E (%) T (Mpa) E (%) T (Mpa) E (%) T (Mpa)
0.0 83.83 b 6.943 c 134.70 b 11.040 d 107.20 c 11.873 b 32.02 a 29.550b
3.0 208.38ab 41.250 a 383.33 a 33.333 ac 114.33 b 18.246 b 20.10 b 50.533 a
5.0 210.50 a 27.917ab 318.33ab 30.257abc 130.12ab 55.013ab 3.87 c 20.083b
10 2.90 c 13.820bc 270.17ab 19.167bcd 160.67 a 65.000 a - -
20 2.90 c 21.593bc 335.43ab 35.833 a 167.90 a 1.733 a - -
-"E": Elongation at Break, and "T": Tensile strength. Values with the same letter(s) are insignificant difference at 5%.
Table 2: Mechanical properties of irradiated packaging materials.