Researchers have always been interested in magnesium hydroxide along with its potential to be synthesized in a variety of morphologies and distinctive fire-retardant features. The hydrothermal method is one of the most effective techniques to synthesize nanoparticles with controlled size and shape, as well as high purity. In this study, the hydrothermal method was used to synthesize four distinct morphologies of MH, such as plate, flake, spherical, and disk, functionalized with APTES from magnesium chloride and sodium hydroxide raw materials. The influence of each morphology on surface roughness and hydrophobicity of Polyurethanes nanocomposite was then investigated using different analyses such as XRD, SEM, AFM, and contact angle. The observations demonstrated that the presence of nanoparticles with different morphologies would lead to different surface topography. Thanks to the surface roughness, extremely high water contact angles were obtained showing the super hydrophobic behavior of the developed nanocoatings.
Surface Modification of Polyurethane Nano Coatings: Effect of Different Morphology of Mg(OH)2 Nanoparticles on Hydrophobicity
Zahra RajabiMashhadi
Writing – Original Draft Preparation
;Carola Esposito Corcione
2022-01-01
Abstract
Researchers have always been interested in magnesium hydroxide along with its potential to be synthesized in a variety of morphologies and distinctive fire-retardant features. The hydrothermal method is one of the most effective techniques to synthesize nanoparticles with controlled size and shape, as well as high purity. In this study, the hydrothermal method was used to synthesize four distinct morphologies of MH, such as plate, flake, spherical, and disk, functionalized with APTES from magnesium chloride and sodium hydroxide raw materials. The influence of each morphology on surface roughness and hydrophobicity of Polyurethanes nanocomposite was then investigated using different analyses such as XRD, SEM, AFM, and contact angle. The observations demonstrated that the presence of nanoparticles with different morphologies would lead to different surface topography. Thanks to the surface roughness, extremely high water contact angles were obtained showing the super hydrophobic behavior of the developed nanocoatings.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
