Good evening everybody;
I am doing a research to produce a nanofiber membrane for HEPA (H14) filter production via electrospinning.
I have some questions:
1. I am spinning on a nonwoven substrate, should I calculate its area density (gsm) in the total gsm of the spun mat?
2. how could I judge on electrospun nanofiber based on the air permeability test results? i.e. I will check it according to standards (e.g. EN ISO 9237), the values will decrease by increasing gsm, when can I stop (range in mm/s)? before doing filtration efficiency test.
3. with your experience; should I keep some beads in the nanofiber web? or the spun mat should be beads-free? in literature both points of view are found.
Best Regards,
Dear Jafar, thank your for posting interesting technical question on RG. Please note that I'm not a specialist in this field, as we are synthetic inorganic chemists. However, can suggest to you the following potentially useful articles which might help you in your analysis:
Air permeability of nanofiber membrane with hierarchical structure
Article Air permeability of nanofiber membrane with hierarchical structure
This article is freely available as public full text on RG, so that you can download it as pdf file.
Optimization of electrospinning parameters for polyacrylonitrile-MgO nanofibers applied in air filtration
Article Optimization of Electrospinning Parameters for PAN-MgO Nanof...
and
Incorporation of Electrospun Nanofibers Into Functional Structures
Article Incorporation of Electrospun Nanofibers into Functional Structures
(see attached pdf file)
For the second part of your question ("how could I judge on electrospun nanofiber based on the air permeability test results?") the following RG links should be quite informative:
In vivo evaluation of electrospun poly (vinyl alcohol)/sodium alginate nanofibrous mat as wound dressing
Article In vivo evaluation of electrospun poly (vinyl alcohol)/sodiu...
and
Design of polyamide nanofiber air filter media with glass particles
Conference Paper Design of polyamide nanofiber air filter media with glass particles
You can also find and access other helpful references by searching the "Publications" section of RG.
Please stay safe and healthy!
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