Influence of plasticizer on the physical and mechanical properties of composites based on low density polyethylene and quartz

The influence of quartz (silicon dioxide) content on main physical and mechanical properties of composites based on low density polyethylene is considered. It is shown that the introduction of a compatibilizer – a copolymer of high-density polyethylene with maleic anhydride – into the composition improves the properties and compatibility of the mixed components. The use of synthesized polyethylene wax as a plasticizer made it possible to significantly improve the deformability of highly filled composites. The method of thermomechanical studies shows the patterns of change in thermomechanical curves in the temperature range of 20 –200°C, depending on the concentration of quartz in the presence of a plasticizer and a compatibilizer.