Study of the Effect of Various Fillers on the Properties of Epoxy Oligomers

Abstract

: The shell of eggs, kaolin and fiberglass epoxy oligomers and fillers were taken as the object of research and compositions based on them were prepared, the physical and mechanical properties of the composition were studied using the most modern research methods. properties were determined by conducting several tests (tensile, bending, composite density, water absorption, hardness). Epoxy-based compositions were prepared and their properties were studied using various fillers. For this purpose, polyethylene polyamine ED-20 brand epoxy oligomer and its hardener were used. In scientific research, the effect of various fillers on the properties of epoxy resin has been studied experimentally. The dependence of the composition of the insoluble part of ENO on the drying time at a temperature of 110°C - 150°C was determined. It was found that the inclusion of fillers in the composite material greatly affects the mechanical properties. Thus, in a certain mass fraction of kaolin and eggshell powder, the adhesion strength increased, but the subsequent increase in the amount of fillers decreased. In general, it can be noted that the tensile strength of unmodified epoxy resin is higher than the strength of epoxy compositions, and the modulus of elasticity is lower. This indicates that the addition of filler to the epoxy resin and glass / epoxy resin reduced the tensile strength and increased the modulus of elasticity. The result allows the buoy to be used in industry.