Preparation and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite
文献类型：期刊论文
| 作者 | Zhang JP(张俊平) ; Wang WB(王文波); Wang AQ(王爱勤)
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| 刊名 | Applied Clay Science
 |
| 出版日期 | 2009 |
| 卷号 | 46期号:1页码:21-26 |
| 关键词 | Guar gum Organo-vermiculite Superabsorbent Swelling Graft copolymerization Nanocomposites |
| ISSN号 | 0169-1317 |
| 通讯作者 | 王爱勤 aqwang@licp.cas.cn |
| 中文摘要 | Vermiculite (VMT) was modified with cetyl trimethylammonium bromide (CTAB). Superabsorbent nanocomposites were prepared by solution polymerization of natural guar gum (GG), partially neutralized acrylic acid (NaA) and organo-vermiculite (CTA+-VMT), ammonium persulfate (APS) as initiator and N,N′-methylene-bis-acrylamide (MBA) as crosslinking agent. FTIR spectra confirmed that NaA had been grafted onto GG and the \OH groups of CTA+-VMT participated in the polymerization reaction. The intercalated-VMT was exfoliated during polymerization and uniformly dispersed in the GG-g-PNaA matrix. Swelling tests show that CTA+-VMT improved swelling and swelling rate more remarkably than VMT, and the nanocomposite exhibited distinct kinetic swelling behavior in NaCl and CaCl2 solution. Organo-VMT improved the gel strength of the nanocomposite compared to VMT, and the maximum storage modulus of the nanocomposite reached 658 Pa (γ=0.5%, ω=100 rad/s). |
| 学科主题 | 功能高分子 |
| 收录类别 | SCI |
| 资助信息 | 科技部863项目(2006AA03Z0454,2006AA100215) |
| 语种 | 英语 |
| WOS记录号 | WOS:000270161300004 |
| 公开日期 | 2012-09-02 |
| 源URL | [http://210.77.64.217/handle/362003/157]  |
| 专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
| 推荐引用方式 GB/T 7714 | Zhang JP,Wang WB,Wang AQ. Preparation and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite[J]. Applied Clay Science,2009,46(1):21-26. |
| APA | 张俊平,王文波,&王爱勤.(2009).Preparation and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite.Applied Clay Science,46(1),21-26. |
| MLA | 张俊平,et al."Preparation and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite".Applied Clay Science 46.1(2009):21-26. |
入库方式： OAI收割
来源：兰州化学物理研究所
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