A 300-mesh copper mesh was placed on the collector, the nanofibers were collected and dried, and then the internal structure of the nanofibers was observed at a voltage of 200 kV using a transmission electron microscope (F20, FEI Company).
Place a 300 mesh copper mesh on a collector, collect and dry the nanofibers, and then observe the internal structure of the nanofibers using a transmission electron microscope (F20, FEI company) at a voltage of 200kV.
A 300-mesh copper mesh was placed on a collector, and the nanofibers were collected and dried. Then, the internal structure of the nanofibers was observed with a transmission electron microscope (F20, FEI Company) at a voltage of 200kV.