| Study on superabsorbent composite. XX. Effects of cation-exchanged montmorillonite on swelling properties of superabsorbent composite containing sodium humate | |
| Department | 环境材料与生态化学研究发展中心 |
Zheng YA(郑易安) ; Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2009 | |
| Source Publication | Polymer Composites
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| ISSN | 0272-8397 |
| Volume | 30Issue:8Pages:1138-1145 |
| Abstract | In this work, the effects of different cation-exchanged montmorillonite on water absorbency of poly(acrylic acid-co-acrylamide)/montmorillonite/sodium humate (PAA-AM/MMT/SH) superabsorbent composite were systematically investigated under the same preparation conditions. The superabsorbents doped with different cation-exchanged montmorillonite were characterized by Fourier-transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy technologies. Swelling behaviors of developing superabsorbent composite in various cationic saline solutions (NaCl, CaCl2, and FeCl3) were also investigated. The water absorbencies of superabsorbent composite with 20 wt% MMT and 30 wt% SH are 638, 723, 682, and 363 g g-1 in distilled water for incorporating natural Na?-MMT, Li?-exchanged MMT, Ca2?-exchanged MMT, and Al3?-exchanged MMT, respectively. The results showed that the cation-exchange process had some obvious influences on final water absorbency of superabsorbent composite. NaCl, CaCl2, and FeCl3 solutions did not alter the swelling characteristics of the superabsorbent materials at a concentration of less than 0.01 mM, however, a concentration of greater than 0.1 mM caused a collapse in the swelling curves. The excellent swelling-reswelling-swelling behavior and lower swelling rate testified that Al3?-exchanged MMT can act as an assistant crosslinker in the polymeric network. |
| Subject Area | 功能高分子 |
| Funding Organization | 科技部863项目(2006AA03Z0454,2006AA100215) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/146 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | 王爱勤 aqwang@licp.cas.cn |
| Recommended Citation GB/T 7714 | Zheng YA,Wang AQ,王爱勤 aqwang@licp.cas.cn. Study on superabsorbent composite. XX. Effects of cation-exchanged montmorillonite on swelling properties of superabsorbent composite containing sodium humate[J]. Polymer Composites,2009,30(8):1138-1145. |
| APA | 郑易安,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2009).Study on superabsorbent composite. XX. Effects of cation-exchanged montmorillonite on swelling properties of superabsorbent composite containing sodium humate.Polymer Composites,30(8),1138-1145. |
| MLA | 郑易安,et al."Study on superabsorbent composite. XX. Effects of cation-exchanged montmorillonite on swelling properties of superabsorbent composite containing sodium humate".Polymer Composites 30.8(2009):1138-1145. |
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| 200930811381145.pdf（351KB） | 开放获取 | License | View Application Full Text | |||
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