Georgian Scientists/ . 6 N 3, 2024 365 Georgian Scientists Vol. 6 Issue 4, 2024 https://doi.org/10.52340/gs.2024.06.04.33 1 , 2 , 3 , 3 , 4 , 5 1 , - e-mail l.ebanoidze@gtu.ge ORCID ID: https://orcid.org/0009-0008-9232-3515 Z- ( ) Zetasizer Nano Zen 3690, , -30mV- +30mV- . KCl- . , . , , , . : , , , . , , . , , , . , , Georgian Scientists/ . 6 N 3, 2024 366 , . , Li+>Na+>K+>Rb+>Cs+ , , - ( ) . ( - ) . , , [1-5]. Z- ( ) Zetasizer Nano Zen 3690, , -30 mV- +30 mV- . , , , , . - (PS), - (DMAc), (KCl). Zetasizer Nano ZN3690, , . M3-PALS- „Zetasizer Software 6.2“ - -200 mV- +200 mV- . U- , - ( 1730, 633 4 mW ). ( ) Georgian Scientists/ . 6 N 3, 2024 367 MTSI-JM-5. 1. 1. , 1, mV % 2, mV % 3, mV % Zeta Potential, mV - . - , J, 2 M1 -21.0 100 - - - - -21.0 2300 M2 +1%KCl -17.3 94.8 81.1 5.2 - - -12.1 3100 M3 +3%KCl 7.95 100 - - - - -7.66 3735 M5 +5%KCl -7.40 99.9 71.9 0.1 - - -7.31 945 M6 +10%KCl 10.1 100 - - - - -2.55 810 M7 +20%KCl 45.5 75.4 -141 24.6 - - -0.456 675 M8 +40%KCl 0.798 100 - - - - 9.75 150 1. . 1. . - 1%- KCl- 1. . 3%- KCl- Georgian Scientists/ . 6 N 3, 2024 368 . 1. 2. , KCl- . 1. . -21.1 mV- . (SO2-) . . 1. . , KCl- -21.1 mV- -12.1 mV- . (K+) . . 2. . - 5%- KCl- 2. . - 10%- KCl- 2. . - 20%- KCl- 2. . - 40%- KCl- Georgian Scientists/ . 6 N 3, 2024 369 2. (-7.31 mV), (-0.456 mV) (+9.75 mV) . . KCl- . 20%- KCl- ( =0), (-0.456 mV). , , . 40%- KCl- +9.75 mV- , , - - . ( , ) . . 1 (5735 2 ) M3 , 5%- . KCl- (40%) 150 2 . [6-7] , , , . 1. . , . . , II . . 2017. .186-219; 2. Yehia Manawi, Viktor Kochkodan, Ebrahim Mahmoudi, Daniel J. Johnson, Abdul Wahab Mohammad, Muataz Ali Atieh. Characterization and Separation Performance of a Novel Polyethersulfone Membrane Blended with Acacia Gum. Scientific Reports. Vol.7, 2017. pp.523- 547; 3. Matias Ernst, Alexander Bismarck, Gurgen Springer, Martin Jekel. Zeta-Potential and Rejection Rates of Polyethersulfone Nanofiltration Membrane in Single Salt Solution. Journal of Membrane Science, Vol.165(2), 2016. pp.251-259; 4. Sema Solgin, Ugur Salgur Salgin, Nagihan Soyer. Streaming Potential Measurements of Polyehersulfone Ultrafiltration Membranes to Determine Salt Effects on Membrane Zeta Potential. International Journal of Electrochemical Science 8(3), 2013. pp.4073-4084; Georgian Scientists/ . 6 N 3, 2024 370 5. A. Marti, F. Marti, J. Malfeiro, L. Polacio, P. Prodanos. Zeta Potential of Membranes as as function of pH: Optimization of Isoelectric Point Evaluation. Journal of Membrane Science. Vol. 213, 2003. pp.225-230; 6. Obtaining of Natural Water Microfiltration Membranes Based on Polyethersulphone With PEG 300, PEG600 and LiCl Additives. Oxidation Communication, V.47(3), 2024. pp.543–550; 7. ., ., ., ., . . , .98, 2, 2023, .59-61. The dependence of the electrokinetic potential of the polymer composition with the resulting solid tape impregnation 1Liana Ebanoidze, 2Giorgi bibileishvili, 3Elene Kakabadze, 4Zaza Javashvili, 5Mzia Kezherashvili, 6Tinatin Butkhuzi The paper presents the determination of -potential of polymer solution of different concentration by dynamic light scattering (electrophoretic light scattering) method on Zetasizer Nano Zen 3690 analyzer to evaluate the properties of electric double layer in the range of potential difference from -30 mV to +30 mV. The effect of KCl concentration in polysulfone solutions on the aggregate stability of the solution was studied. It was found that the magnitude of aggregate stability of the electrokinetic potential largely determine the specific performance of the membrane made from the poured solution. It was found that the aggregate stability of the polymer solution can be changed by a certain amount of electrolyte, which affects the physical-chemical parameters of the polymer composition, determines the phase inversion process and the asymptotic value of the specific productivite of the obtained membrane. Keywords: -potential, Polymer, Membrane,