Investigation of the effect of treatment with supercritical carbon dioxide on structure and properties of polypropylene microfiltration membranes
Katarzyna Tarabasz , Jan Krzysztoforski , Maciej Szwast , Marek Henczka
AbstractThe effects of treatment with supercritical carbon dioxide of two types of polypropylene microfiltration membranes, which may occur in novel membrane processing techniques such as membrane cleaning using supercritical carbon dioxide as solvent, were investigated. The membranes were treated with scCO2 at three different pressures (8 MPa, 16 MPa, and 24 MPa) and at two various temperatures (40 °C and 70 °C) for different treatment times (5 min and 100 min). The morphology of the membranes was investigated using various analytical methods, using non-treated membranes as reference samples. No critical changes in membrane structure and properties, which would limit the usability of the membranes in microfiltration processes, were observed. Supercritical carbon dioxide can be safely applied in polypropylene membrane production, maintenance and modification.
|Journal series||Materials Letters, ISSN 0167-577X|
|Publication size in sheets||0.5|
|Keywords in English||upercritical carbon dioxide, polypropylene, microfiltration membrane, filtration performance, membrane cleaning|
|Score|| = 35.0, 28-11-2017, ArticleFromJournal|
= 35.0, 28-11-2017, ArticleFromJournal
|Publication indicators||: 2016 = 2.572 (2) - 2016=2.426 (5)|
|Citation count*||5 (2018-02-17)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.