Along with high strength and high oxygen polyolefin pipe prepared

Meanwhile, the invention disclosed includes a method for preparing high-strength high oxygen polyolefin pipes are uniformly blended with 1 to 60 parts by 100 parts of the fiber-forming resin with the polyolefin matrix, and then placed in a twin-screw extruder a temperature of the melt in the melting zone 180 ~ 280 deg.] C, die temperature of 170 ~ 280 ℃, extrusion extruded using a rotary mode and in the stretch-forming process, with a die diameter sizing sleeve diameter ratio of 1.25 to 4, the extrusion rate ratio of the traction speed 20 ~ 200rpm: 0.2 ~ 6.5m / min, the prepared pipe loop than the conventional pipe extruder to increase the tensile strength of 7.9 ~ 69%, an oxygen permeability than conventional pipe extrusion fell from 7 to 47%. Since the present invention provides a method of preparing in the prior art based on the introduction of the "Melt convergence traction - sizing cooling" mode, so that the deformation of the fiber-forming phase can occur in the pipe, combined fiber-situ, to obtain the corresponding and the aspect ratio of the content of microfibers, so that the pipe hoop tensile strength and oxygen barrier properties while achieving greatly improved.