Figure 13

Water droplet contact angle on mild steel surfaces exposed 24 h to 3.5 wt.% NaCl solution: (a) bare surface, and (b) coated surface by Ch/GA nanocomposite.

Water droplet contact angle on mild steel surfaces exposed 24 h to 3.5 wt.% NaCl solution: (a) bare surface, and (b) coated surface by Ch/GA nanocomposite.