| Study on superabsorbent composite. XI. Effect of thermal treatment and acid activation of attapulgite on water absorbency of poly(acrylic acid)/attapulgite superabsorbent composite | |
| Department | 环境材料与生态化学研究发展中心 |
Wang WJ(王文己); Li A(李安); Zhang JP(张俊平) ; Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2007 | |
| Source Publication | Polymer Composites
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| ISSN | 0272-8397 |
| Volume | 28Issue:3Pages:397-404 |
| Abstract | The effect of acid activation and thermal treatment of attapulgite on water absorbency of superabsorbent composite were investigated. Under the same preparation conditions, superabsorbent composite prepared with natural attapulgite exhibited a water absorbency of 639 g/g and it merely kept 71% of its initial water absorbency after 5 times of swelling–deswelling–reswelling test. However, superabsorbent composites prepared with 2–10 M hydrochloric acid acidified attapulgite and 100–400°C thermal treated attapulgite respectively exhibited the water absorbency of 884–1,241 g/g and 701–1,515 g/g. Also, those superabsorbent composites can keep 87% and 85% of their initial water absorbency after 5 times of swelling–deswelling–reswelling test, respectively. These results showed that, compared with superabsorbent composite prepared with natural attapulgite, the comprehensive water-absorbing properties of poly(acrylic acid)/ attapulgite superabsorbent composites were improved effectively by acid activation and thermal treatment of attapulgite. This improvement of water absorbencies and gel strength of superabsorbent composite may be due to synthetical factors such as changes in the crystalline structure and the specific surface area and improvement of the number and the activity of hydroxyl groups of attapulgite, which in turn influence the grafting efficiency of monomer, crosslinking density, and the structure of superabsorbent composite network. |
| Subject Area | 功能高分子 |
| Funding Organization | 科技部863重大专项子课题(2005AA2Z4030);中国科学院“西部行动”计划项目(KGCXZ-SW-502) |
| 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/362003/205 |
| 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 | Wang WJ,Li A,Zhang JP,et al. Study on superabsorbent composite. XI. Effect of thermal treatment and acid activation of attapulgite on water absorbency of poly(acrylic acid)/attapulgite superabsorbent composite[J]. Polymer Composites,2007,28(3):397-404. |
| APA | 王文己,李安,张俊平,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2007).Study on superabsorbent composite. XI. Effect of thermal treatment and acid activation of attapulgite on water absorbency of poly(acrylic acid)/attapulgite superabsorbent composite.Polymer Composites,28(3),397-404. |
| MLA | 王文己,et al."Study on superabsorbent composite. XI. Effect of thermal treatment and acid activation of attapulgite on water absorbency of poly(acrylic acid)/attapulgite superabsorbent composite".Polymer Composites 28.3(2007):397-404. |
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| 2007283397404.pdf（387KB） | 开放获取 | License | View Application Full Text | |||
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