The SEM microphotographs of the results of the heterocoagulation process: a mixture of PTFE latex and CTAB-stabilized MWCNT dispersion by ultrasonication, b the surface of the PTFE/CTAB-stabilized MWCNT composite particles after the growth step, and 1 wt.% MWCNT/PTFE composite particles upon the completion of the heterocoagulation process prepared with c MWCNT-COOH and d CTAB-stabilized MWCNT
Figure 3 represents the morphology of the hybrid
Figure 3a shows the simple mixture of 1 wt.%
CTAB-stabilized MWCNT with PTFE dispersions prior to the
Figure 3b shows the surface of the particles containing
1 wt.% MWCNT/CTAB in the PTFE matrix after the particle-growth
Figure 3c, d represent the morphology of the ultimate
composite particles prepared with MWCNT-COOH and MWCNT/CTAB after
the stabilization process.
In Fig. 3c, a great deal of PTFE latex particles still remains
after the heterocoagulation process due to the lack of interaction
between both negatively charged MWCNT and PTFE.
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