| 초록 |
Particulate matters with various sizes in the air have become a leading environmental threat to human health globally. Herein, we have successfully fabricated a series of Polyacrylonitrile/poly(acrylic acid) fibrous membranes with various diameters (PAN:PAA with weight radios of 3:7, 4:6, 5:5, 6:4, 7:3 and 10:0) with high tensile strength via electrospinning. The porous structure of the membranes was evaluated using nitrogen adsorption/desorption isotherms and calculated pore size ranges from 17-44 nm. Air filtration efficiency and pressure drop of the as prepared membranes were evaluated. An optimized (PAN: PAA= 6:4) membrane showed high filtration efficiency of 99.99 % with lowest pressure of 160 Pa for 300-500 nm NACL aerosol particles at a 5.3cm/s airflow velocity. Therefore, our optimized PAN/PAA nanofibrous membrane could be a potential candidate for high performance filters. |
