Naslov
Effect of Hydrolysis on porosity of cellulose acetate reverse osmosis membranes

Autori
Košutić, Krešimir ; Kunst, Branko

Izvornik
Journal of Applied Polymer Science (0021-8995) 81 (2001), 7; 1768-1775

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
asymmetric membranes; cellulose acetates; hydrolysis; pore size distribution; membrane performance

Sažetak
The alkaline hydrolysis of asymmetric cellulose acetate membranes was investigated. The hydrolysis was performed in reverse osmosis equipment. The changes of cellulose triacetate and cellulose diacetate membrane performances caused by hydrolysis of the membrane material were measured, and the data were analyzed in terms of pore size distributions and effective number of pores in the upper membrane layer before and after hydrolysis. The resulting membranes rejection factors decrease and the permeation rates increase were caused by closing of a part of the smallest “network” membrane pores and by increasing the size of the other pores.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA