Intensification of mixing and heat exchange in polymerizes

¹ Almalyk branch of Tashkent State Technical University named after Islam Karimov, Almalyk, 100000, Uzbekistan
² Tashkent Institute of Chemical Technology Academic Lyceum, Tashkent, Uzbekistan
³ Nukus Mining Institute at Navoi State Mining and Technological University, Karakalpakstan, Nukus city, Uzbekistan
⁴ Kokan branch of Tashkent State Technical University named after Islam Karimov, Fergana, 100095, Uzbekistan
⁵ Eastern University, Sri Lanka, 30350, Chenkalady, Sri Lanka

^* Corresponding author: rifkyalm@esn.ac.lk

Abstract

In this article, polymerization processes are carried out under various physicochemical conditions. The reaction medium can be a solution of the polymer in a monomer or solvent with a viscosity from 10^-3 to 10² -10³ Pa, a suspension of solid polymer particles in a hydrocarbon diluent or water with a polymer concentration from 10 to 60%, aqueous dispersions, gas systems solid. Thermodynamic conditions and kinetic characteristics can also vary within wide limits: temperature from 70 to 300 °C, and contact time from tens of seconds to several hours. Polymerization processes typically involve significant heat release (60-100 kJ/mol). In a number of cases, directly or indirectly, temperature and hydrodynamic (shear) conditions affect the molecular weight distribution or dispersed composition of polymer particles and, thus, determine the physical and mechanical properties of the polymer. Naturally, the implementation of the necessary temperature, concentration, and hydrodynamic conditions depends on the design and type of reactor.