FILTRATION MEDIAS, FINE FIBERS UNDER 100 NANOMETERS, AND METHODS

摘要

AN ELECTROSPINNING FINE FIBER PRODUCTION METHODOLOGY FOR GENERATING A SIGNIFICANT AMOUNT OF FIBERS WITH DIAMETERS OF LESS THAN 100 NANOMETERS IS PROVIDED. ALSO, A FILTER MEDIA COMPOSITE COMPRISING A SUBSTRATE LAYER (24) AND AN ELECTROSPUN FINE FIBER LAYER (26) HAVING A INCREASED EFFICIENCY RELATIVE TO PRESSURE DROP AND/OR A CONTROLLED PORE SIZE DISTRIBUTION IS PROVIDED. ACCORDING TO SOME EMBODIMENTS NYLON IS ELECTROSPUN FROM A SOLVENT COMBINATION OF FORMIC AND ACETIC ACIDS.