| abstract |
It is an object of the invention to provide polyethylene porous matter hollow-fibre membrane and possess filter element for water purifier and the hollow fiber film assembly of described polyethylene porous matter hollow-fibre membrane, described polyethylene porous matter hollow-fibre membrane uses the resin combination that the mobility containing polyethylene is excellent, keep excellent film quality and rigidity, permeable amount is many, and filtering feature is excellent.Polyethylene porous matter hollow-fibre membrane is formed by the resin combination that the mobility containing polyethylene is excellent, the average pore diameter of this hollow-fibre membrane is 0.1～0.5 μm, and pore diameter distribution is: the pore diameter distribution in the region of described average pore diameter ± 0.05 μm is more than the 70% of all well diameter Distribution, the melt flow rate (MFR) that the code D according to JISK7210 of described polyethylene measures is 0.1～0.9g/10 minute, the melt flow rate (MFR) measured according to the code G of JISK7210 is 50～100g/10 minute, their ratio FRR(G/D) be 50～100 and density be 0.962～0.968g/cm 3 .It addition, the present invention is provided with filter element for water purifier and the hollow fiber film assembly of described polyethylene porous matter hollow-fibre membrane. |