HIGH-DENSITY POLYETHYLENE RESIN COMPOSITION HAVING HIGH ENVIRONMENTAL STRESS CRACK RESISTANCE

摘要

The present invention relates to a high-density polyethylene resin composition having high environmental stress cracking resistance, comprising 60 to 70% by weight of a polyethylene resin and 30 to 40% by weight of an ethylene-alpha-olefin copolymer resin, wherein the polyethylene resin is melt flow The index is 100 to 300 g / 10 min (measured at 190 ° C., a load of 2.16 kg), the density is 0.950 to 0.980 / ㎤, and the ethylene-alpha-olefin copolymer resin has a melt flow index of 0.01 to 2 g / 10 min ( 190 ° C., and a load of 2.16 kg), and a density of 0.930 to 0.960 g/cm 3 , as a melt-mixed mixture of the polyethylene resin and the ethylene-alpha-olefin copolymer resin, and a melt flow index (MFI) of 5 to 10 g/10 min (measured under the conditions of 190° C. and a load of 2.16 kg) and a density of 0.950 to 0.970 g/cm 3 is provided.