Issue |
MATEC Web Conf.
Volume 268, 2019
The 25th Regional Symposium on Chemical Engineering (RSCE 2018)
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Article Number | 04010 | |
Number of page(s) | 5 | |
Section | Materials and Processing | |
DOI | https://doi.org/10.1051/matecconf/201926804010 | |
Published online | 20 February 2019 |
Investigation of superabsorbent polymer absorbency at reduced chemical potential of water
Department of Chemical Engineering, Technological Institute of the Philippines, 363 P. Casal St., Quiapo, Manila 1001, Philippines
Corresponding author: arvmelen@yahoo.com
Different types of superabsorbent polymers (SAP) exhibiting varied absorbency properties were investigated for their performances at varying concentrations of an electrolyte. Water chemical potential, which is a function of concentration and pressure, was interpreted as a major parameter for absorbency and swelling properties of SAP. Superabsorbent polymers that were investigated gave different values of permeability which was carried out in a layer of swelled superabsorbent polymer. This result revealed differences on the structure of the superabsorbent polymers particularly on the crosslinking density. SAP’s absorbency properties were further tested and a correlation between the quantity of absorption and the chemical potential of water in terms of sodium chloride concentration was developed using experimental data on free swelling capacity and absorption under pressure. Results showed decreasing quantity of absorption by the superabsorbent polymers with decreasing chemical potential of water with higher reduction in the absorbency at higher pressure applied on the swelled SAP.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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