| Preparation and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite | |
| Department | 环境材料与生态化学研究发展中心 |
Wang WB(王文波) ; Zhang JP(张俊平); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
| |
| 2009 | |
| Source Publication | Applied Clay Science
 |
| ISSN | 0169-1317 |
| Volume | 46Issue:1Pages:21-26 |
| Abstract | 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). |
| Keyword | Guar Gum Organo-vermiculite Superabsorbent Swelling Graft Copolymerization Nanocomposites |
| 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/362003/157 |
| 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 WB,Zhang JP,Wang AQ,et al. 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 | 王文波,张俊平,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2009).Preparation and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite.Applied Clay Science,46(1),21-26. |
| MLA | 王文波,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. |
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| 20094612126.pdf（373KB） | 开放获取 | License | View Application Full Text | |||
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