Fig. 15: The distribution of element F in the coatings under different PTFE nanoparticle concentrations in bath.

The distribution of element F under the concentration of PTFE nanoparticles was (a) 14 g L−1, (b) 16 g L−1.

The distribution of element F under the concentration of PTFE nanoparticles was (a) 14 g L−1, (b) 16 g L−1.