
 Here away used to reduce the porosity of the nanofibers, which is removing PVA nanofibers from PVA/PA6 nanofibers by water treatment. Measuring the porosity of the electrospun web before and after treatment by the BET method proved this. The specific surface area of the web was 60 % reduced after water treatment. Surface roughness and pore volume have reduced after water treatment. Also, I introduced BET as the method for measuring the diameters of mesopores (or lower than 100nm). I used BET to prove that the cracks can make mesopores on the nanofibers.

Water treatment of PVA/PA6 nanofibers can reduce surface roughness, porosity, and pore volume by 60%, with mesopores formed by surface cracks.

Polyamide-6 surface cracked forms nanofibers: A novel way for increasing the surface roughness, and porosity

Key Takeaway: Water treatment of PVA/PA6 nanofibers can reduce surface roughness, porosity, and pore volume by 60%, with mesopores formed by surface cracks.