LDPE>>Heavy Duty
It is a branched polymer with high melt strength and low density (0.91-0.93 g/cm³), exhibiting excellent impact resistance (dart impact strength >500g) and puncture resistance. Its physical properties include a medium to low melt index (0.5-2.0 g/10min, 190°C/2.16kg), high tensile toughness (elongation at break >600%), and good heat sealing performance; its chemical properties include resistance to weak acids, weak alkalis, and oils, but it is not resistant to strong oxidizers (such as concentrated nitric acid) and high-temperature aromatic solvents (soluble in xylene at >70°C).
- Parameters
It is a branched polymer with high melt strength and low density (0.91-0.93 g/cm³), exhibiting excellent impact resistance (dart impact strength >500g) and puncture resistance. Its physical properties include a medium to low melt index (0.5-2.0 g/10min, 190°C/2.16kg), high tensile toughness (elongation at break >600%), and good heat sealing performance; its chemical properties include resistance to weak acids, weak alkalis, and oils, but it is not resistant to strong oxidizers (such as concentrated nitric acid) and high-temperature aromatic solvents (soluble in xylene at >70°C).
Heavy-duty low-density polyethylene (LDPE) is primarily utilized in heavy-duty packaging due to its high impact resistance, puncture resistance, and excellent heat-sealing performance. It serves as the inner lining film for large-capacity packaging bags (with a load capacity of 25-50kg) for items such as fertilizers, feed, and chemical raw materials, as well as the sealing layer for container bags (ton bags). Its high toughness (dart impact >500g) and resistance to environmental stress cracking ensure tear resistance and leakage prevention during transportation and stacking, making it particularly suitable for industrial packaging scenarios that require high strength and moisture-proof sealing.
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