APPARATUS AND METHOD USING AN ELECTRIC FIELD FOR CREATING UNIFORM NANOFIBER PATTERNS ON NONCONDUCTIVE MATERIALS TO ENHANCE FILTRATION AND FOR EMBEDMENT OF FIBERS INTO MATERIALS FOR OTHER APPLICATIONS

摘要

A filtration device including a base filtration material having openings for fluid flow there through and a filtration medium. The filtration medium includes a plurality of patterned nanofibers formed on the base filtration material. The filtration medium has a figure of merit greater than 30 kPa−1, where the figure of merit is given by −Log (Pt)/ΔP, where Pt is the fractional penetration of a specific aerosol particle diameter and ΔP is a pressure drop across the filtration medium corresponding to a face velocity of 5.3 cm/s and particle size of 0.3 microns.

主权项

1. A filtration device comprising:
a base filtration material having openings for fluid flow therethrough; and a filtration medium disposed in contact with the base filtration material, said filtration medium comprising a plurality of patterned nanofibers formed on the base filtration material, wherein the filtration medium has a figure of merit greater than 30 kPa−1, where the figure of merit is given by −Log (Pt)/ΔP, where Pt is the fractional penetration of a specific aerosol particle diameter and ΔP is a pressure drop across the filtration medium corresponding to a face velocity of 5.3 cm/s and particle size of 0.3 microns.