Preparation of Hydrophobic PET Track-Etched Membranes for Separation of Oil-Water Emulsion

Ilya V Korolkov; Asiya R Narmukhamedova; Galina B Melnikova; Indira B Muslimova; Arman B Yeszhanov; Zh K Zhatkanbayeva; Sergei A Chizhik; Maxim V Zdorovets

doi:10.3390/membranes11080637

Preparation of Hydrophobic PET Track-Etched Membranes for Separation of Oil-Water Emulsion

Membranes (Basel). 2021 Aug 17;11(8):637. doi: 10.3390/membranes11080637.

Authors

Ilya V Korolkov^{1

2}, Asiya R Narmukhamedova¹, Galina B Melnikova^{1

3}, Indira B Muslimova¹, Arman B Yeszhanov^{1

2}, Zh K Zhatkanbayeva¹, Sergei A Chizhik³, Maxim V Zdorovets^{1

2

4}

Affiliations

¹ L.N. Gumilyov Eurasian National University, Satpaev str. 5, Nur-Sultan 010008, Kazakhstan.
² The Institute of Nuclear Physics, Ibragimov str. 1, Almaty 050032, Kazakhstan.
³ A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus, P. Brovki str., 15, 220072 Minsk, Belarus.
⁴ Ural Federal University, Mira str. 19, 620002 Ekaterinburg, Russia.

Abstract

The paper describes the separation of an oil-water emulsion by filtration using poly(ethylene terephthalate) track-etched membranes (PET TeMs) with regular pore geometry and narrow pore size distribution. PET TeMs were modified with trichloro(octyl)silane to increase their hydrophobic properties. Conditions for the modification of PET TeMs with trichloro(octyl)silane were investigated. The results of changes in the pore diameters and the contact angle depend on the concentration of trichloro(octyl)silane and the soaking time are presented. The obtained samples were characterized by FTIR, AFM, SEM-EDX and gas-permeability test. Chloroform-water and cetane-water emulsions have been used as a test liquid for oil-water separation.

Keywords: hydrophobic modification; silane; track-etched membranes; water–oil separation.

Abstract

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