Improvement of Aerosol Filtering Performance of PLLA/PAN Composite Fiber with Gradient Structure.

ABSTRACT: Since commercial non-woven air filtering materials have unstable filtering efficiency and poor moisture permeability for the abundant condensed aerosol particles in the highly humid atmospheric environment, the PLLA/PAN composite fiber material with a hydrophobic and hydrophilic gradient structure is designed and prepared by using electrode sputtering electro spinning technology. By characterizing and testing the filtrating effect of SEM, XRD, FTIR, wettability, mechanical property, N₂ adsorption isotherm, and BET surface area, NaCl aerosol of PLLA fiber, PAN fiber, and PLLA/PAN composite fiber membranes, the study found that the electrode sputtering electrospinning is fine, the fiber mesh is dense, and fiber distribution is uniform when the diameter of the PAN fiber is 140-300

SUBMITTER: Zhu P 

PROVIDER: S-EPMC9697973 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature