[Retracted] Influence of Epoxy/Nanosilica on Mechanical Performance of Hemp/Kevlar Fiber Reinforced Hybrid Composite with an Ultrasonic Frequency

Figure 10

Hygroscopic behavior: (a) 0 wt.% of silica, (b) 3 wt.% pf silica; (c) 6 wt.% of silica, and (d) 9 wt.% of Silica.

(a)

(b)

(c)

(d)