SEM Images

The SEM images that were obtained are important for analyzing the mat. The SEM images that were obtained show that the first prototype was a success. Although the images show very distinct fibers, there are still certain abnormalities that were unavoidable.

Figure 1

Figure 2

Figure 3

Figures 1-3 show the successful images of the nano-fibers at 9000X maginification. These are the images that are being processed using the program ImageJ in order to complete pore size and fiber diameter analysis.

Figure 4 - Image of a spindle in the fiber

Figure 5 - Image of a beaded fiber

Figures 4 and 5 show abnormalities that occur when spinning a sample. Figure 4 shows a spindle which can be caused by numerous parameters such as humidity, voltage, flow rate, etc. Figure 5 shows a bead in the mat that can probably be associated with the machine turning off and on several times during the process, causing the polymer to bead up on the syringe. These can be caused by many other factors as well.