Peculiarities of the Kinetics of Composite Material Composition Based on Polytetrafluoroethylene in the Constant Speed Mode of the Press Pluger

The work presents a theoretical analysis of the process of one-sided pressing, under conditions of constant speed on the press plunger and taking into account external friction, of powder composite polymer materials based on polytetrafluoroethylene (PTFE) with small additives (less than 5%), such as silicon dioxide SiO2, kaolinite Al4[Si4O10](OH)8, carbon nanotubes, and carbon fiber. The influence on the process of compaction of materials of the speed of the press plunger, the coefficient of external friction, and the composition of the pressed material (depending on its additives) is analyzed. Based on a system of initial equations using Lagrangian variables and averaging over the radius, numerical calculations are carried out of the time dependence of the voltage on the plunger of the press for various values of the friction coefficient, geometric dimensions of the sample, and speeds of the press plunger. New visual representations are provided of the kinetics of compaction of powder materials based on polytetrafluoroethylene under constant speed of the press plunger.