Figure 7.
Morphology of the prepared PVDF hollow fiber membrane with 190 μm thickness. Magnification: cross section 120×; enlarged cross section 1000×; inner surface 25000× [28]. Reproduced with permission.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.