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Titre du document / Document title

Nano additives : A Review

Auteur(s) / Author(s)

MARATHE Bhupesh ; KANTAK Abhishek ;

Résumé / Abstract

Nano-scale materials are said to have unique and potentially valuable properties in comparison to the same materials that exist naturally in larger than nano-scales, which can include greater tensile strength, enhanced electrical conductivity, and the ability to contribute to new chemical synthesis pathways. Nanotechnology is the science of manipulating materials at the atomic and molecular level to develop new or enhanced materials and products. One of the most advanced markets in the field of nanotechnology is in the area of modifying surface properties using nanotechnology. By using certain nanosized oxides well dispersed into the coating formulation, the mechanical properties of these coatings can be improved significantly. Especially nanosized alumina and silica is ofinterest because high-gloss, high-transparent coatings can be achieved by using nanosized fillers instead of micron-sized materials. Due to the nature of the particles, the viscosity of those dispersions is very low since there is no tendency for bridging flocculation, as for example in materials made by flame pyrolysis. When incorporating a small amount of nano alumina in a UV-curable coating system, the resistance against mechanical scratching can be increased significantly. Nano-Additives include stable colloidal suspensions of titania, ceria and alumina. These are the most technologically advanced nanomaterials available, with particle sizes less than 10 nanometers. The advantage of these Nano-Additives includes no use of surfactants, yet our colloidal suspensions remain stable. These Nano-Additives for coatings that must exhibit extraordinary ultraviolet light resistance and they have proven to help prevent marring and scratching as well. Nano silver is used as antimicrobial additive in hygienic coating application. Comb-shaped block copolymer and reduction by tertiary amine, which helps production of stable and highly concentrated pastes of Gold nanoparticles. Electronics, optics, catalysis, colorants and surface metal coatings are the possible fields of application of these gold nano particles pastes.

Revue / Journal Title

Paintindia    ISSN  0556-4409   CODEN PANTAH 

Source / Source

2008, vol. 58, no7, [Note(s): 113-132 [11 p.]]

Langue / Language

Anglais

Editeur / Publisher

Colour Publications, Bombay, INDE  (1951) (Revue)

Localisation / Location

INIST-CNRS, Cote INIST : 2521, 35400018518861.0050

Nº notice refdoc (ud4) : 20619332



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