Modification of polymeric membranes with unipolar corona discharge to intensify the separation of oil-in-water emulsions

Hydraulics

Shaikhiev, I.^1 ; Dryahlov, V.^1 ; Galikhanov, M.^1 ; Sverguzova, S.^2 ; Ivanov, M.^3

Kazan National Research Technological University, Kazan, Russia^1

Belgorod State Technological University Named after V.G. Shukhov, Belgorod, Russia^2

Bauman Moscow State Technical University, 5 Second Baumanskaya Street, Moscow

105005, Russia^3

关键词: Corona discharges;    Corona treatment;    Degree of crystallinity;    Edge wetting;    Hydrophilic characteristics;    Oil-in-water emulsions;    Polyethersulfones;    Polymer membrane;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/492/1/012031/pdf
DOI  :  10.1088/1757-899X/492/1/012031

来源: IOP

【 摘 要 】

The data on the unipolar corona treatment of polymer membranes made of polyethersulfone and polyacrylonitrile and their use for the separation of a 20% model oil-in-water emulsion based on an "I-20A" industrial oil stabilized by a "Kosintol-242" surfactant are given.It is shown that corona treatment of polymer membranes contributes to an increase in membrane productivity and the efficiency of separation of water-oil emulsion.It has been determined that corona discharge treatment leads to a decrease in the degree of crystallinity of the membranes, roughness due to oxidation of the surface with ozone produced during corona processing and the edge wetting angle, which indicates an increase in hydrophilic characteristics.