A kind of high-density polyethylene resin for PE100+ tubing

The invention discloses a kind of high-density polyethylene resin for PE100+ tubing, the degree of branching of the high-density polyethylene resin is 1.9 ‰~2.6 ‰, and melt flow rate (MFR) is 6.0~7.3g/10min, and density is 0.948~0.953g/cm 3 , melt flow ratio is 29~35, and comonomer is 1- hexenes.High-density polyethylene material of the present invention is applied to the processing of high-grade pressure resistant pipe material, especially the water-feeding pipes or combustion gas tubing of PE100+ and requirements above, with excellent mechanical property, environmental stress cracking resistance and the energy of resistance to crack growth resistance.