METHOD FOR FORMING POLYURETHANE ABSORPTIVE MATERIAL OF VEHICLE AND THE POLYURETHANE ABSORPTIVE MATERIAL THEREOF

摘要

The present invention, by adding an airgel powder when foaming a polyurethane sound absorbing material, a method for manufacturing a polyurethane sound absorbing material for automobiles and a polyurethane that minimizes weight gain and enhances an insulating effect through an airgel well known as a heat insulating material and a lightweight material The purpose is to provide a sound absorbing material. In particular, the present invention is to prepare a masterbatch stock solution by mixing the airgel with a polyol in advance, add the polyol to adjust the concentration, and then mix and foam MDI (Methylene Diphenyl Diisocyanate) to control the concentration of the airgel. Another object is to provide a method for manufacturing a polyurethane sound absorbing material for automobiles, and to provide the polyurethane sound absorbing material, which makes it possible to obtain a homogeneous sound absorbing and insulating performance by increasing the dispersion effect while making it easy.