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Description
Title: | Thermodynamics of Polyamide Separation Membrane in Contact With Aqueous Solutions |
Author(s): | Zhang, Xijing |
Doctoral Committee Chair(s): | Cahill, David G. |
Department / Program: | Materials Science and Engineering |
Discipline: | Materials Science and Engineering |
Degree Granting Institution: | University of Illinois at Urbana-Champaign |
Degree: | Ph.D. |
Genre: | Dissertation |
Subject(s): | Engineering, Materials Science |
Abstract: | The absorption of water in reverse osmosis membranes FT30 and LF10 is investigated by a combination of measurements of water mass uptake and biaxial stress as a function of relative humidity. Water solubility in polyamide active layer is 12 wt% at a relative humidity of 95%. The slope of a water concentration versus humidity curve can be used to calculate inter-diffusivity of water in polyamide active layers. By combining the measurements of water mass uptake and biaxial stress, we estimate the specific volume of water in the active layers to be ∼ 30%. |
Issue Date: | 2008 |
Type: | Text |
Language: | English |
Description: | 99 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008. |
URI: | http://hdl.handle.net/2142/82837 |
Other Identifier(s): | (MiAaPQ)AAI3347570 |
Date Available in IDEALS: | 2015-09-25 |
Date Deposited: | 2008 |
This item appears in the following Collection(s)
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Dissertations and Theses - Materials Science and Engineering
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Graduate Dissertations and Theses at Illinois
Graduate Theses and Dissertations at Illinois