Análise superficial do compósito PEUAPM/Quasicristal

Abstract

The need to create new materials that would satisfy the demands of modern society led research to develop on the improvement of material properties, among those are composites, which are the combination of two or more different materials, that together add mechanical, chemical, thermal and other properties. Composite materials are made up of a matrix and a reinforcement, matrices can be ceramic, polymeric or metallic, an example of reinforcement are particulate fillers, such as the quasicrystal metal fillers of AlcuFe used in this work, where composites were made by mixing a polymeric matrix of Polyethylene of Ultra High Molecular Weight with the metallic fillers of the quasicrystal, in volumetric fractions of 1%, 2%, 5% and 10% in volume of quasicrystal fillers. The specimens were cast in a MARCONI hydraulic pressure at a temperature of 200 ° C to 12 tonnes for 20 minutes, and then the bodies were cooled and demolded. The X-ray diffractometry (XRD) and Scanning Electron Microscopy (SEM) microstructures and the surface moisture analysis were included. The XRD analyzes proved to be crystalline phases of the materials, a scanning electron microscopy, made a reading of the surface of the material showing that the material presented a good porosity. Distilled water, salt water and motor oil, with a continuous surface of composites and pure PEUAPM, showing the action once hydrophysics, does not have pure PEUAPM, as in the four compositions of the composites.