10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
Abstract View
Preparation of Non-Woven PTFE Fibers Using Electrospinning
HAN-BIN KIM, Ki Bong Lee, Myong-Hwa Lee, Korea Institute of Industrial Technology, Korea University
Abstract Number: 625 Working Group: Control and Mitigation
Abstract Bag house system is commonly used to remove particulate matters in exhaust gases from various combustion facilities. Bag filter is the most important component to determine the performance of a bag house system. Bag filter made of PTFE polymer is widely used to collect particulate matters in dust-laden flue gas, due to its strong chemical resistance, low surface free energy. Especially, PTFE laminated membrane filter, which an expanded PTFE film is laminated on a woven glass fiber filter, is generally used in a bag house system because nonwoven PTFE bag filter is quite expensive. However, the filter has extremely low air permeability, which resulted in low filtration performance due to high pressure drop. PTFE foam coated filter, which has a high air permeability, was developed in our research group. However, the filtration efficiencies of the filter for fine particles are not high enough at initial stage of filtration, since the pore size of the filter is larger than 10 um1).
A new method was proposed to improve the performance of the PTFE foam coated filter in this study. The PTFE nanofibers fabricated by electrospinning were coated on a PTFE foam coated filter to decrease the pore size and improve the collection efficiencies for fine particles.
<Reference> 1. Park, B. H; S. B. Kim; Y. M. Jo; M. -H, Lee*. 2012. Aerosol and Air Quality Research. 12: 1257-1263. doi: 10.4209/aaqr.2012.03.0071
<Acknowledgment> This research was supported by the National Strategic Project-Fine particle of the National Research Foundation of Korea(NRF) funded by the Ministry of Science and ICT(MSIT), the Ministry of Environment(ME), and the Ministry of Health and Welfare(MOHW) (Project number : NRF-2017M3D8A1091125).