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http://dx.doi.org/10.7317/pk.2014.38.4.530

Fabrication of a High Porous Polyethylene Membrane Using BET as a Novel Diluent  

Cho, Inhyun (School of Chemical Engineering and Materials Science, Chung-Ang University)
Lee, Soomi (School of Chemical Engineering and Materials Science, Chung-Ang University)
Kim, Chang Keun (School of Chemical Engineering and Materials Science, Chung-Ang University)
Publication Information
Polymer(Korea) / v.38, no.4, 2014 , pp. 530-534 More about this Journal
Abstract
Polyethylene (PE) membranes having various porosities are used as microfilters and separators in lithium ion batteries. Membranes having a high porosity are required for use as separators in a large scale lithium ion secondary battery. In this study, BET was examined for use as a new nontoxic diluent for the fabrication of highly porous PE membranes by thermally induced phase separation process. It was confirmed that BET can be used as a new diluent for the fabrication of the PE membranes by exploring upper critical solution temperature type phase behavior of PE mixtures with BET. When the porosity of the membrane prepared from the PE/PO mixture was compared with that prepared from PE/BET mixture, the latter was about 1.8 times higher than the former.
Keywords
microporous polyethylene membrane; high porosity; BET; diluent; upper critical solution temperature;
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Times Cited By KSCI : 2  (Citation Analysis)
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