| Study on superabsorbentcompositeXVI. Synthesis, characterization and swellingbehaviors of poly(sodiumacrylate)/vermiculitesuperabsorbentcomposites | |
| Department | 环境材料与生态化学研究发展中心 |
Zheng YA(郑易安) ; Li P(李平); Zhang JP(张俊平); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
| |
| 2007 | |
| Source Publication | European Polymer Journal
 |
| ISSN | 0014-3057 |
| Volume | 43Issue:5Pages:1691-1698 |
| Abstract | A series of superabsorbentcomposites were synthesized by copolymerization reaction of partially neutralized acrylic acid on unexpanded vermiculite (UVMT) micropowder using N,N′-methylenebisacrylamide (MBA) as a crosslinker and ammonium persulfate (APS) as an initiator in aqueous solution. And the samples were further characterized by means of fourier-transform spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA). The effects of vermiculite content on water absorbency were studied. Swellingbehaviors of the superabsorbentcomposites in various cationic salt solutions (NaCl, CaCl2 and FeCl3), anionic salt solutions (NaCl, Na2SO4 and Na3PO4) and pH solutions were also systematically investigated. Results obtained showed that the equilibrium water absorbency increased with increasing UVMT content and the concentration of 20 wt.% clay gave the best absorption (1232 g/g in distilled water and 89 g/g in 0.9 wt.% NaCl). Data achieved also suggested that the water absorbency in various saline solutions decreased with an increase in the ionic strengths of these solutions. And it was found that at a higher ionic strength (>1 × 10?3 M), the water absorbency in monovalent cationic solutions was higher than those in multivalent cationic solutions. However, at the same ionic strength (>1 × 10?3 M), the effect of three anionic salt solutions on the swelling has the following order: NaCl < Na2SO4 < Na3PO4. |
| Keyword | Superabsorbentcomposite Vermiculite Water Absorbency Swelling Behavior |
| Subject Area | 功能高分子 |
| Funding Organization | 国家863计划项目(2006AA100215,2006AA03Z0454);中国科学院“西部行动”计划(KGCX2-YW-501) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/203 |
| 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,Li P,Zhang JP,et al. Study on superabsorbentcompositeXVI. Synthesis, characterization and swellingbehaviors of poly(sodiumacrylate)/vermiculitesuperabsorbentcomposites[J]. European Polymer Journal,2007,43(5):1691-1698. |
| APA | 郑易安,李平,张俊平,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2007).Study on superabsorbentcompositeXVI. Synthesis, characterization and swellingbehaviors of poly(sodiumacrylate)/vermiculitesuperabsorbentcomposites.European Polymer Journal,43(5),1691-1698. |
| MLA | 郑易安,et al."Study on superabsorbentcompositeXVI. Synthesis, characterization and swellingbehaviors of poly(sodiumacrylate)/vermiculitesuperabsorbentcomposites".European Polymer Journal 43.5(2007):1691-1698. |
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