| Preparation, swelling behaviors and application of polyacrylamide/attapulgite superabsorbent composites | |
| Department | 环境材料与生态化学研究发展中心 |
Zhang JP(张俊平) ; Liu RF(刘瑞凤); Li A(李安); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2006 | |
| Source Publication | Polymers for Advanced Technologies
 |
| ISSN | 1042-7147 |
| Volume | 17Pages:12-19 |
| Abstract | A series of superabsorbent composites, polyacrylamide/attapulgite (PAMA), were prepared from acrylamide (AM) and attapulgite micropowder in aqueous solution, using N,N′-methylenebisacrylamide (MBA) as a crosslinker and ammonium persulfate (APS) as an initiator and then saponified with sodium hydroxide solution. This paper focuses on swelling behaviors of the PAMA superabsorbent composites in various saline solutions. The results indicate that saline solutions can weaken the swelling abilities of the PAMA compsites greatly. Water absorbency of the PAMA composites with 20 and 40?wt% attapulgite in aqueous chloride salt solutions has the following order: Li+?=?Na+?=?K+, Mg2+?>?Ca2+?=?Ba2+ all through the range of concentration investigated. However, swelling properties of the composites are complicated in CuCl2(aq), AlCl3(aq) and FeCl3(aq) solutions and are related to saline solutions concentration. The deswelling behavior of PAMA composites is more obvious in univalent chloride salt solutions than in divalent and trivalent ones. The influence of kind and valence of anions on swelling ability of the composites is limited and almost the same. Moreover, reswelling capability, practical water retention ability in sand soil of the composites and the effect of pH on water absorbency of the PAMA composites were investigated. The PAMA composite shows good water retention and reswelling ability in sand soil, and may be used as a recyclable water-managing material for the renewal of arid and desert environment. |
| Keyword | Superabsorbent Composites Water Absorbency Swelling Recycling |
| Subject Area | 功能高分子 |
| Funding Organization | the Western Action Project of CAS(No. KGCXZ-SW-502);“863” major project of the Ministry of Science and Technology, P. R. China (No. 2005AA2Z4030) |
| 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/362003/225 |
| 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 | Zhang JP,Liu RF,Li A,et al. Preparation, swelling behaviors and application of polyacrylamide/attapulgite superabsorbent composites[J]. Polymers for Advanced Technologies,2006,17:12-19. |
| APA | 张俊平,刘瑞凤,李安,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2006).Preparation, swelling behaviors and application of polyacrylamide/attapulgite superabsorbent composites.Polymers for Advanced Technologies,17,12-19. |
| MLA | 张俊平,et al."Preparation, swelling behaviors and application of polyacrylamide/attapulgite superabsorbent composites".Polymers for Advanced Technologies 17(2006):12-19. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 20061711219.pdf（190KB） | 开放获取 | License | View Application Full Text | |||
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