Electrospinning fabrication of polystyrene-silica hybrid fibrous membrane for high-efficiency air filtration

Hongzhe Tang (1, 2) , Dong Han (2, 3) , Jian Zhang (4)

1 BUAA - Beihang University
2 Ecole Centrale de Pékin
3 INL - MFN - INL - Matériaux Fonctionnels et Nanostructures
4 ICGM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier

The development of new materials for air filtration and particulate matter (PM) pollution is critical to solving global environmental issues that threaten human health and accelerate the greenhouse effect. In this study, a novel electrospun polystyrene-SiO 2 nanoparticle (PS-SNP) fibrous membrane was explored by a single-step strategy to obtain the composite multi-layered filter masks. In addition, the air filtration performance of this fibrous membrane for PM was evaluated. The effects of SiO 2 on the composition, morphology, mechanical property, and surface wetting of PS-SNP membranes were studied. Allowing SiO 2 to be incorporated into the PS polymer was endowed with promising superhydrophobicity and demonstrated excellent mechanical properties. As-prepared PS-SNP membranes possess significantly better filtration efficiency than pure PS membrane. Furthermore, a three-layered air filter media (viscose/PS-SNP/polyethylene terephthalate) used in this study has considerable performances compared to the commercial masks. Since this air filtration membrane has excellent features such as high air filtration and permeability, we anticipate it to have huge potential application in air filtration systems, including cleanroom, respirator, and protective clothing.

Mots clés: fibrous membrane; electrospinning; air filtration; polystyrene; silica

Domaines: Micro et nanotechnologies/Microélectronique

Hongzhe Tang, Dong Han, Jian Zhang. Electrospinning fabrication of polystyrene-silica hybrid fibrous membrane for high-efficiency air filtration. Nano Express, 2021, 2 (2), pp.020017. ⟨10.1088/2632-959X/abfe3d⟩. ⟨hal-03777593⟩