Melt Blowing: Experiments and Modeling

The project aims at an in-depth study of melt blowing process from both experimental and theoretical perspectives. The experimental part of the project will consist of two major phases. In the first phase, we aim to investigate the effect of utilizing new die designs (based on preliminary CFD simulations) on process aerodynamics and fiber characteristics. We would also examine the effects of changing the polymer properties, and the operating conditions on fiber motions, air velocities, air temperatures, final fiber diameter, web strength, and the fiber bending instabilities. In the second phase of the project, we will investigate a novel methodology of melt blowing using super critical carbon dioxide (ScCO2). ScCO2 is known as an inert polymer processing aid and its ability to plasticize polymers allows lower operating temperatures, and melt blowing longer chain polymers.

Schematic drawing for the MB Process using ScCO2