Surface Treatments of Powder

Abstract

New products with unprecedented functions are expected in various industrial fields. Surface treatment is one of the important technologies to make the original products. In the case of the surface treatment of powders, it is necessary to grasp not only bulk, but also particle and surface properties. First, this paper describes the nature of particles and surface properties of powders, and then surface treatments of powders are explained. Furthermore, nano-coating of polymethylsiloxane (PMS) with tetramethylcyclotetrasiloxane by chemical vapor deposition on the powders, and the addition reaction of unsaturated compounds to Si-H groups of PMS film, so-called “functional nano-coating” is also described.