Effect of surfactant on the fabrication and characterization of Ni-P-CNT composite coatings

The effect of sodium dodecyl sulfate surfactant on the electrodeposition of Ni-alumina composite coatings

“…It seems that the incorporation of nano-sized Al 2 O 3 particles in the coating plays a major role in improving the corrosion resistance of the coatings. They could fill all pores and micro-holes of the coatings and decreased the tendency of the coatings to corrosion [26]. This could be also attributed to lower reactivity of nano-alumina particles [26].…”

“…They could fill all pores and micro-holes of the coatings and decreased the tendency of the coatings to corrosion [26]. This could be also attributed to lower reactivity of nano-alumina particles [26]. Beyond this optimum level, lower participation of nanoalumina particles shifted the corrosion potential (E corr ) to more negative values (À0.307 V) and corrosion current density (i corr ) to higher values (3.776 Â À7 A cm À2 ).…”

Electroless Nanocomposite Coatings: Synthesis, Characteristics, and Applications

“…3b), which would be beneficial to improve their dispersion ability in the electroless plating bath. It has been reported that removal of impurities by acid treatment and decrease in length by ball milling have enabled a better dispersion of CNTs/MWCNTs in the plating bath [7,[10][11][12]. The decrease in length of the CNTs/MWCNTs also helped them to accommodate easily in the Ni-P matrix [6].…”

“…Various types of surfactants, namely, anionic, cationic, and nonionic, are used for this purpose. The most commonly used surfactants are cetyltrimethylammonium bromide (CTAB), dodecyltrimethylammonium bromide (DTAB), hexadecyltrimethylammonium bromide (HTAB), sodium dodecyl sulfate (SDS), 1,3-toloyltriethanolammonium chloride (TTAC), tetraethyleneglycol dodecyl ether (Brij 30), polyethylene glycol (PEG), and fluorosurfactants [6,11,14,16,17,[27][28][29][30]. It is important to understand the role of surfactants and its interaction with the nanoparticles so that an effective dispersion of nanoparticles could be achieved in the plating bath.…”

Effect of surfactants on the coating properties and corrosion behaviour of Ni–P–nano-TiO2 coatings

“…In order to maintain nano powder suspension in the solution, ultrasonication and magnetic stirring are widely used. Surfactants are often used to help particle separation in the plating baths [18,19]. Surfactants are responsible for enhancing the stability and uniformity of a suspension by increasing the wettability and their ability to modify the surface charge.…”