1 / 7

Nanofiber Filter Technology

Nanofiber Filter Technology. Derek L. Balchuck MEEN 3344 Spring 2009. Likely Filter Materials. Cellulose for the base material Alumina powder with glass fibers bonded at 100 °C Polyvinyl-alcohol Polyvinylidene Chloride Polyvinylidene Fluoride Polyvinylidene Halide

bruno
Download Presentation

Nanofiber Filter Technology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Nanofiber Filter Technology Derek L. Balchuck MEEN 3344 Spring 2009

  2. Likely Filter Materials • Cellulose for the base material • Alumina powder with glass fibers bonded at 100°C • Polyvinyl-alcohol • Polyvinylidene Chloride • Polyvinylidene Fluoride • Polyvinylidene Halide • Melamine-formaldehyde as resin

  3. Fabrication of Filters • The base material is made from a web of cellulose • The cellulose web has the ability to retain a rigid shape • The nanofibers are then applied by electrospinning the desired material to the cellulose layers. • Resin is applied, most likely immediately before the nanofiber material leaves the pipette. • Forming various layers of nanofibers, cellulose and other materials result in a stepped filtration device • Note 1: the nanofibers are less than 200 nanometers in diameter • Note 2: Even though the gap between the nanofibers is greater than the particle’s size, the filter can still filter out that particle

  4. Benefits • High volume filtration efficiency in air or fluids • The filter is not made of paper so when moisture is present, the filter does not absorb the condensation. • Holds-up to sand and salt • In a relatively dry atmosphere, the maximum operating temperature is 250ºF.

  5. Applications • Military – sand, salt, water, high temperatures and radioactive materials (pre-filter for the HEPA filters) • Marine and liquids – condensation in the air flow and ultra fine dust particles (for engines), filter out particulates in the water or other various liquids • Industrial, Agricultural and Off-road vehicles – high volumes of sand, dirt, salt and high temperatures • After treatment compatible – particulate filters found on post January 1, 2007 will plug-up when using a wet gauze filter, charged with oil (K&N)

  6. Disadvantages • The nanofiber material will tear easily. • The nanofiber filters cost more than the typical paper filter, due to the additional manufacturing processes. • Maximum temperature sustained with the humidity above 90% is only 100ºF.

  7. Sources • http://www.donaldson.com/en/filtermedia/support/datalibrary/052023.pdf • http://www.donaldson.com/en/filtermedia/support/datalibrary/052025.pdf • http://www.google.com/patents?id=D0ESAAAAEBAJ&pg=PA6&dq=donaldson+nano+air+filter&source=gbs_selected_pages&cad=1_1#PPA1,M1

More Related