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Computational Approach to the Surface-Crosslinking Process of Superabsorbent Polymer via Central Composite Design.
- Source :
- Polymers (20734360); Sep2022, Vol. 14 Issue 18, pN.PAG-N.PAG, 11p
- Publication Year :
- 2022
-
Abstract
- The improvement of gel strength and absorption properties through the surface-crosslinking of superabsorbent polymers (SAPs) is essential for sanitary industry applications. We prepared core-SAP via aqueous solution copolymerization, and then surface-crosslinked the core-SAP under various conditions. The structure of the SAP was characterized using Fourier transform infrared (FT-IR) spectroscopy. Central composite design (CCD) of response surface methodology (RSM) has been applied to determine the optimum surface-crosslinking conditions such as surface-crosslinker content, reaction temperature, and reaction time. The optimal surface-crosslinking conditions were identified at a surface-crosslinker content of 2.22 mol%, reaction temperature of 160 °C, and reaction time of 8.7 min. The surface-crosslinked SAP showed excellent absorbency under load of 50 g/g with a permeability of 50 s. Other absorption properties were also evaluated by measuring the free absorbency and centrifuge retention capacity in saline solution. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20734360
- Volume :
- 14
- Issue :
- 18
- Database :
- Complementary Index
- Journal :
- Polymers (20734360)
- Publication Type :
- Academic Journal
- Accession number :
- 159333553
- Full Text :
- https://doi.org/10.3390/polym14183842