Preparación y caracterización de nanofluidos: Influencia de variables sobre su estabilidad, estado de aglomeración y propiedades físicas

Abstract

In recent years it has spread the use of suspensions containing nanometre sized particles, known as nanofluids, in many applications owing the good properties having nanocrystalline materials. One of the main advantages of using nanofluids is its high stability, which causes the particles do not settle over long periods of time. This stability depends on the preparation conditions such as pH, the presence of electrolytes or the solids content. Moreover, there are a number of physical properties which are influenced and altered by agglomeration of the particles. This article will analyze all the variables that affect agglomeration of the particles, nanofluids stability and properties from which it can obtain information on the state of suspension. It then lays out the different methods of dispersion of nanoparticles and their effectiveness.