This invention provides an apparatus and method for preparing polyurethane elastic melt-blown fabric, belonging to the technical field of polyurethane melt-blown fabric preparation. The apparatus includes a polymerization unit, a melt-blowing unit, and a winding unit connected in sequence according to the material transport direction. The polymerization unit includes a polyol storage tank, a diisocyanate storage tank, a chain extender storage tank, a static mixer, a buffer tank, a chain extension reactor, an auxiliary material adding device, and a twin-screw extruder; the melt-blowing unit includes a melt conveying component, a melt-blowing die head, and a receiving web former; and the winding unit includes an edge trimming and winding device. The apparatus integrates polymerization technology and melt-blowing technology, eliminating the cumbersome process of slice preparation, and achieving a one-step preparation route from the addition of polyurethane synthesis raw materials to the formation of melt-blown fabric, avoiding the problems of low product quality control associated with the two-step method.
Country Code: CN
Application Number: CN202311608888.2
