METHOD OF DISPERSE POLYMER ELECTRETS PRODUCING Russian patent published in 2025 - IPC H01G7/02 

FIELD: performing operations.

SUBSTANCE: invention relates to a method of producing dispersed polymer electrets for various engineering fields as sources of an external electric field, particularly dispersed polymer electrets can be used in medicine for polarizing substances and activating regenerative processes in tissues. Method comprises the steps of processing polymer materials, at which their grinding is carried out to obtain polymer particles with surface defects by crushing and sending them for washing with an aqueous solution of detergents, after which washed polymer particles with surface defects are subjected to chemical activation and delivered for drying, after which chemically activated polymer particles are subjected to electrisation in electrostatic field of corona discharge, so that polymer particles surface defects obtained in the process of crushing and treatment with a chemical activator acquire the role of cells and accumulate electric charges, wherein the process of chemical activation involves the use of a chemical activator, which provides a possibility of increasing the depth of already existing surface defects and the formation of new defects on the surface of a polymer particle without its destruction.

EFFECT: high charge density of the polymer electret.

4 cl, 9 dwg, 4 tbl, 6 ex