期刊
POLYMERS
卷 14, 期 18, 页码 -出版社
MDPI
DOI: 10.3390/polym14183842
关键词
superabsorbent polymer composites; surface-crosslinking; central composite design; response surface methodology; absorption property
资金
- Ministry of Trade, Industry & Energy (MOTIE, Sejong-si, Korea) [20014546]
- MOTIE
- Technology Innovation Program (Parts and Materials Technology Development) - Ministry of Trade, Industry & Energy (MOTIE, Sejong-si, Korea) [20014546]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20014546] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The improvement of gel strength and absorption properties through the surface-crosslinking of superabsorbent polymers (SAPs) is essential for sanitary industry applications. In this study, core-SAP was prepared via aqueous solution copolymerization, and the optimal surface-crosslinking conditions were determined using response surface methodology. The surface-crosslinked SAP showed excellent absorbency under load of 50 g/g.
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 degrees 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.
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