Title of Paper:Behaviors of aerosol oil droplets on modified PAN fibrous webs

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Date of Publication:2020-01-01

Journal:Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science)

Included Journals:EI

Volume:54

Issue:1

Page Number:196-201

ISSN No.:1008973X

Abstract:The morphology and evolution of aerosol oil droplets on PAN fibrous webs and modified PAN fibrous webs was analyzed based on the filtration treatment of aerosol suspending oil droplets in the atmosphere. The experimental results show that aerosol oil droplets exhibit different structures and evolution behaviors on fibrous webs with different surface energy. Aerosol oil droplets form axisymmetric structures on PAN fibers and non-axisymmetric structures on modified PAN fibers. Non-axisymmetric structure of aerosol oil droplets on modified PAN fibers switches to axisymmetric structure during the growth of aerosol oil droplets on the fibers. The final structure of aerosol oil droplets on the modified PAN fibers and PAN fibers do not form the liquid film on the fibers, and form large axisymmetric aerosol oil droplets. The pressure drop and the liquid entry pressure of the fibrous membrane were measured. Results show that modified PAN fibrous membrane can prevent aerosol oil droplets from infiltrating compared to original PAN fibrous membranes and have the function of blocking aerosol oil droplets from invading the fibrous membranes. ? 2020, Zhejiang University Press. All right reserved.