Naslov
Characterisation of polymeric nanofiltration membranes

Autori
Petrinić, Irena ; Pušić, Tanja ; Mijatović, Ivan ; Šostar Turj, Sonja

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Book of Proceedings of the 3rd ITCDC : Magic World of Textiles / Dragčević, Zvonko - Zagreb : Tekstilno-tehnološki fakultet Sveučilišta u Zagrebu, 2006, 693-698

Skup
International Textile, Clothing and Design Conference (3 ; 2006)

Mjesto i datum
Dubrovnik, Hrvatska, 08.10.2006. - 11.10.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
characterisation; nanofiltration membrane; MWCO; streaming potential; fouling; contact angle.

Sažetak
The characterisation of commercial nanofiltration membranes is necessary to explain and to control membrane fouling. This study, therefore, characterises three different polymeric membranes (NFT-50, DL and DK) used. The molecular weight cut-off value was determined using a set of reference solutes within the molecular range of 150– 600 Da, whereas streaming potential measurements enabled quantification of the surface charge characteristics. Hydrophobicity was studied using contact angle measurements. The results indicated that even though all three membranes have very similar layer compositions which consisted of polyamide/polysulphone as top layers and as polyamide a support showed different values for the measured parameters. The NFT-50 membrane had the lowest MWCO value and the most hydrophilic membrane surface, followed by DK and DL. Membranes fouling as measured by the flux reduction were determined by streaming potential measurements and were accompanied by a positive change in zeta potential and the iso-electric point (IEP) of the membrane.

Izvorni jezik
Engleski

Znanstvena područja
Tekstilna tehnologija

POVEZANOST RADA