Abstract: Employing single screw extrusion, by changing the quality content and the types of the ultra-high molecular weight polyethylene (PE-UHMW), prepared the activated carbon / PE-UHMW microporous tubing; what is more, using SEM and mercury porosimetry analyzed the microporous structure and parameters of the microporous tubing, also tested microporous tubing s density and compressive strength was introduced. As the results shows, PE-UHMW contributes to the extrusion of activated carbon, but it is easily wrap the active carbon and clog the micro porous when its content is too high；The microporous materials, prepared by single screw extrusion and sintering, have similar pore size and porosity；With the increase of PE-UHMW’s molecular weight, the density and compressive strength of the microporous materials increase; with the increase of PE-UHMW’s content, the density and compressive strength of the microporous materials decrease.

Key words: ultra-high molecular weight polyethylene;active carbon, extrusion;microporous piping