Recovery of Drying Agents’ Waste on Basis of Alumina and Silica by Means of Polyurethane Composites Preparation

Abstract

There was demonstrated a possibility of preparation of encapsulating materials on the basis of polyurethanes and solid waste of petrochemical manufacturing – alumina (alumina gel), silica gel, zeolites and cement, used as fillers. There was investigated particle size distribution depending on filler type, defined average grain diameter and polydispersity index of filler. There was defined influence of nature and quantity of waste on viscosity of original semi polymer, used for synthesis, as well as alteration of wetting properties of polyurethane composition in time and depending on tipe of filler. There were given results of physical testing of received materials. Taking into account summation of explored data for each filler was established optimal degree of extension. There was developed conceptual technique of polyurethane composites preparation with the use of investigated manufacturing waste.