Post-Heat Treatment and Mechanical Assessment of Polyvinyl Alcohol Nanofiber Sheet Fabricated by Electrospinning Technique

Figure 1

Typical SEM micrographs of the PVA electrospun nanofibers: (a) as spun; (b) heat treated at 𝑇_𝑔 (85°C, which is ~0.5 𝑇_𝑚); and (c) heat treated at ~1.65 𝑇_𝑔 (140°C, which is ~0.7 𝑇_𝑚).

(a)

(b)

(c)