Fig. 1. Schematic fabrication process of LLDPE/co-PP

Fig. 2. Variation in melt index of various polyolefin samples at different absorbed doses

Fig. 3. XRD patterns of LLDPE (a), LLDPE:co-PP=3:1 (b), LLDPE:co-PP=2:2 (c), LLDPE:co-PP=1:3 (d) and co-PP (e) (color online)

Fig. 4. DSC curves of LLDPE (a, c) and co-PP (b, d) samples irradiated by electron beam

Fig. 5. DSC curves of LLDPE:co-PP=3:1 (a, d), LLDPE:co-PP=2:2 (b, e), and LLDPE:co-PP=1:3 (c, f) samples irradiated by electron beam

Fig. 6. Polarizing microscope photographs of LLDPE (a), LLDPE:co-PP=3:1 (b), LLDPE:co-PP=2:2 (c), LLDPE:co-PP=1:3 (d), and co-PP (e)

Fig. 7. Stress-strain curves of LLDPE (a), LLDPE:co-PP=3:1 (b), LLDPE:co-PP=2:2 (c), LLDPE:co-PP=1:3 (d), and co-PP (e) samples irradiated by electron beam and their elongation at break after electron beam irradiation (f) (color online)

Fig. 8. Digital photographs of LLDPE, LLDPE:co-PP=3:1, LLDPE:co-PP=2:2, LLDPE:co-PP=1:3, and co-PP samples (irradiation modification dose of 2 kGy) after stress-strain test

Fig. 9. Polarizing microscope photos of LLDPE (a), LLDPE:co-PP=3:1 (b), LLDPE:co-PP=2:2 (c, f), LLDPE:co-PP=1:3 (d) and co-PP (e) samples after stretching (the stretching direction is left and right); (a~e): 0 kGy, (f): 10 kGy