Preparation and Separation Properties of Oleyl Alcohol-Modified PDMS Membranes

Yi Ping Liao; Hong Ye; Yu Wang

doi:10.4028/www.scientific.net/AMR.1096.470

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1096Preparation and Separation Properties of Oleyl...

Preparation and Separation Properties of Oleyl Alcohol-Modified PDMS Membranes

Abstract:

Polydimethylsiloxane (PDMS) pervaporation (PV) membranes are promising for the recovery of aromatic compounds in water. The novel oleyl alcohol-modified PDMS membranes were prepared using n-heptane as solvent, tetraethyl orthosilicate (TEOS) as crosslinker, di-n-butyltin dilaurate (DBTL) as catalyst and oleyl alcohol as organic modifier. The PV performances were investigated for separating phenol/water mixtures at different temperatures. The results showed that the oleyl alcohol-modified PDMS membranes had better selectivity than those without oleyl alcohol. For 0.50 wt% phenol in feed mixture at 80 °C, these membranes had a flux of 0.115 kg m^-2 h^-1 and separation factor of 8.77.

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Periodical:

Advanced Materials Research (Volume 1096)

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470-473

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1096.470

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Online since:

April 2015

Authors:

Yi Ping Liao, Hong Ye*, Yu Wang

Keywords:

Membrane Separation, Pervaporation, Polydimethylsiloxane

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