THE PREPARATION METHOD OF HOLLOW FIBER MEMBRANE WITH HIGH MECHANICAL PROPERTIES USING HYDROPHILIZED POLYVINYLIDENEFLUORIDE FOR WATER TREATMENT

摘要

PURPOSE: A method of making hollow fiber for highly strengthening water treatment is provided to have hydrophilicity by reforming to increase the speed of permeability. CONSTITUTION: A method of making hollow fiber for highly strengthening water treatment comprises the following steps. An akali aqueous solution and hydrophilized poly vinylidene fluoride resin are made. The hydrophilized poly vinylidene fluoride resin is separated from the akali aqueous solution, washed, neutralized, filtered and dried. A spraying solution and an inner coagulant are sprayed through a spinneret to make a hollow fiber. The hollow fiber film is hydrothermal-processed.