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Simple approach for the plasma treatment of polymeric membranes and investigation of the aging effect
Author(s) -
Marques Ingrid R.,
Silveira Camila,
Leite Monique J. L.,
Piacentini Artur M.,
Binder Cristiano,
Dotto Marta E. R.,
Ambrosi Alan,
Di Luccio Marco,
Costa Cristiane
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50558
Subject(s) - membrane , wetting , contact angle , ultrafiltration (renal) , materials science , scanning electron microscope , chemical engineering , dielectric barrier discharge , zeta potential , permeation , plasma , surface modification , polymer chemistry , dielectric , composite material , chemistry , chromatography , nanotechnology , nanoparticle , optoelectronics , biochemistry , physics , quantum mechanics , engineering
The modification of the surface characteristics after treatment with plasma in polymeric materials, such as the aging phenomenon, calls the attention of research in the area of nonthermal plasma technology. In this work, a direct treatment with dielectric‐barrier discharge plasma was used on the surfaces of ultrafiltration membranes. The measurements of the contact angle with water, attenuated total reflectance accessory, zeta potential, atomic force microscopy and scanning electron microscopy‐MEV were performed on the surfaces to verify changes after plasma treatment and to understand the occurrence and timing of the plasma aging effect. In the analysis of the membrane performance, hydraulic permeation and protein retention tests were performed. The results showed an improvement in wettability and hydrophilic properties in the post‐treated membranes. The study of reversibility/aging of the post‐plasma surface is important for research that deals with the modification of polymeric membranes. Changes in surface morphology, topography and wettability of the membranes were observed up to seven days after treatment, with a tendency to return to the initial characteristics of the membranes.