Effects of multi-walled carbon nano tubes on corrosion protection of zinc rich epoxy resin coating

Corrosion Assessment of Zn-Rich Epoxy Primers With Carbon Nanotube Additions in an Electrolyte With a Bacteria Consortium

“…However, a balance must be considered in the formulation in order to assure cathodic protection for an extended time. A load of 90 wt.% of Zn particles may be beneficial for the charge transfer process (Park and Shon, 2015). However, that amount can reduce substrate adhesion and cause problems with the spraying application related to the high viscosity and poor dispersion of zinc particles (Park and Shon, 2015).…”

“…A load of 90 wt.% of Zn particles may be beneficial for the charge transfer process (Park and Shon, 2015). However, that amount can reduce substrate adhesion and cause problems with the spraying application related to the high viscosity and poor dispersion of zinc particles (Park and Shon, 2015). Hence, research has sought to decrease the percentage of Zn load while retaining the connection among the particles and maintaining or increasing mechanical coating properties (Weinell and Rasmussen, 2007;Jeon et al, 2013;Park and Shon, 2015).…”

“…The authors incorporated colored pigments to differentiate between steel substrate and the grayish Zn primer, adding oilabsorbing pigments to decrease the Zn load while maintaining the same level of cathodic protection. Park and Shon suggested the addition of multi-walled carbon nanotubes (MWCNTs) to a maximum load of 0.6 wt.%, which resulted in improved conductivity, adhesion strength, and corrosion protectiveness as the MWCNTs increased from 0 to 0.25 wt.% (Park and Shon, 2015). Similarly, the addition of MWCNTs in an epoxy coating provided greater adhesion strength, transport behavior, and hydrophobicity as the MWCNT concentration increased from 0 to 0.5 wt.% (Jeon et al, 2013).…”

Corrosion protection mechanisms of carbon nanotube and zinc-rich epoxy primers on carbon steel in simulated concrete pore solutions in the presence of chloride ions

“…In such conditions, selfcorrosion of zinc particles due to the presence of oxygen and water will lead to rapid loss of the electrical connection among themselves and with the carbon steel surface [19]. In addition, a high amount of zinc particles can reduce the adhesion to the metal substrate and create difficulties in spraying due to high viscosity and poor dispersion [20]. Therefore, studies have been performed to develop ZRPs with high electrical conductivity but with lower amounts of zinc particles [21][22][23].…”

Optimizing the manufacturing parameters of carbon nanotubes stiffened speaker diaphragm using Taguchi method

“…However, poor adhesion and over-weight problem occur and limit their application. It is reported that using CNTs as an additive can enhance the mechanical property of resin [1][2][3]. Compared with regular polymer, CNTs have lower expansion coefficient, which reduces the residual stress in laminated polymer composites.…”