The Adsorption of Water Vapor on Super Absorbent Product at Low Temperatures and Low Mass

Abstract

The adsorption isotherms of water vapor on super absorbent product have the same form of type III isotherm at ambient temperature with the hysteresis phenomena. For temperatures lower than ambient, the isotherms become deformed because of the chains effect. the polymer is characterized by a multilayer adsorption, which occurs before a full-course is complete. During adsorption reactions, the polymer undergoes rearrangement polymeric network, which results from a cooperative diffusion of the water molecules and from a chain spacing followed by an expansion of the polymeric network. Three types of water molecules adsorbed on polymer were identified: strongly dependent water, adsorbed water, and the water only trapped between the macromolecular chains. © 2006 Wiley Periodicals, Inc.

Department(s)

Chemistry

International Standard Serial Number (ISSN)

0021-8995

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 Wiley-Blackwell, All rights reserved.

Publication Date

01 Jan 2006

Link to Full Text

Share

 
COinS