| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Absorption property of superabsorbent polymer according to the ratio of surface-crosslinking medium solution |
| 초록 |
We synthesized core-superabsorbent polymer (core-SAP) by aqueous solution polymerization using carboxylized acrylic monomer and vinyl sulfonic acid. The absorption properties of SAP are closely related to the crosslinking density of SAP matrix. In this study, we adjusted surface-crosslinking density on the SAP particles to improve the absorption properties. This made it possible to achieve adequate property of CRC and AUL, despite their trade-off relationship. The surface-crosslinking reaction was done by mixing the core-SAP with ethylene glycol diglycidyl ether as a surface-crosslinker using medium solution and then heating at 120 °C for 10 minutes. We confirmed the structure of SAP using FT-IR and measured absorption properties such as centrifuge retention capacity and absorbency under load in 0.9 wt.% NaCl solution. Consequently, we obtained the optimum composition ratio of the surface-crosslinking medium solution and the content of surface-crosslinking agent. |
| 저자 |
임승호1, 김정수2, 신우승2, 김유진2, 김수현2, 장영욱3, 김동현2
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| 소속 |
1한국생상기술(연), 2한국생산기술(연), 3한양대 |
| 키워드 |
superabsorbent polymer; surface-crosslinking; ethylene glycol diglycidyl ether; centrifuge retention capacity; absorbency under load
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| E-Mail |
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