Research Article

Research on Fabrication of Flame Retardant Nanocomposite Coating to Protect Steel Structures on Epikote 240 Epoxy Resin Base with the Synergy of MWCNTs and Fly Ash

Figure 7

The results of SEM imaging of the coating surface after burning. (a) F3 (1.5 wt.% MWCNTs, 10 wt.% FA). (b) F2 (1 wt.% MWCNTs, 10 wt.% FA). (c) F4 (1 % wt.% MWCNTs, 0 wt.% FA). (d) F1: neat epoxy.