PROCESS FOR THE PREPARATION OF NANOCOMPOSITS, NANOCOMPOSITS OBTAINED AND COMPOSITIONS OF NANOCOMPOSITS WITH POLYMERIC MATRIXES

摘要

process for the preparation of nanocomposites, nanocomposites obtained and compositions of said nanocomposites with polymeric matrices. A process for the preparation of nanocomposites from metallic and non-metallic oxide nanoparticles obtained by the sol-gel process in a hydrophilic polymer matrix is described, the process comprising forming a colloidal suspension of nanoparticles of said oxides and dispersing said nanoparticles in a organic continuous phase, generally a high surface hydrophilic polymer under agitation and optional heating, to form a nanocomposite where the polymer forms a shell around the oxide. by spray drying, the powdered nanocomposite product is recovered, used as such or included in a proportion of from 1 to 95% by weight in any polymeric matrix, such as a low surface energy matrix.