THE THRESHOLD VOLTAGE SHIFT OF THE SULFUR MASTICS ON QUARTZ FILLER
An important property of sulfur composites, which characterizes the quality of the evolving structure of the material, is the fluidity and workability of the mixture. In the present work, the rheological properties of the sulfur mastics, filled with quartz flour and dressed quartz flour with a specific surface area of 180, 300, 420 m2/kg was assessed value of the limiting shear stress. The main method of research: gravitational method of blurring. Temperature definition: 150...160 °C. As a result of research, the regularities of changes in technological properties of sulfur composite materials on quartz flour and dressed quartz flour RX-technological factors. The mathematical model describing the effect of the duration of isothermal exposure on the mobility of sulfur mastics. It is shown that the introduction of the sulfur melt the filler treated with sprays, leads to an increase in the maximum shear stress sulfur composites, due to the flow of two competing processes associated with vulcanized rubber: the formation of polymer and sulfur vulcanizate (first process), and the formation of gaseous products of vulcanization (the second process).