A new kind of dispersion - colloidal emulsion aphrons
文献类型：期刊论文
| 作者 | Deng, T; Dai, YJ; Wang, J |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2005-09-15 |
| 卷号 | 266期号:1-3页码:97-105 |
| 关键词 | colloidal emulsion aphron colloidal liquid aphron dispersibility stability leakage |
| ISSN号 | 0927-7757 |
| 英文摘要 | A new kind of dispersion named as colloidal emulsion aphrons (CEAs) has been prepared and their structure was postulated. They can be considered as the micron-sized water-in-oil (W/O) emulsion-cores encapsulated by a "soapy shell" consisting of multi-layer surfactant molecules. In this work, CEAs were made using span 80 (sorbitan monooleate) as hydrophobic surfactant, NP 10 (nonylphenol ethoxylate) as hydrophilic surfactant and n-heptane as the oil phase. In this dispersion, the emulsion-core sizes are mainly in 10-100 mu m and that of the inner phase droplets are in 1-5 mu m. Some of CEA properties, especially the dispersibility and stability were studied. CEAs disperse more easily in water compared with that of emulsion liquid membranes (ELMs). Some affecting factors, such as deposit time, mixing speed, oil-internal ratio and concentrations of hydrophilic and oil-soluble surfactants on leakages of CEA dispersion were characterized under various conditions by using Co2+ as a tracer ion. In order to gain the high stability and low leakage, suitable surfactant concentrations and oil-inner phase ratio (R-oi) are necessary for CEA preparation. In this study, span 80 and NP 10 were supposed to be in 0.5-2.5% (w/v) and 0.25-0.75% (w/v), respectively and R-oi >= 1. Because of the large interface areas and high dispersibility which CEAs possess, it is hopeful for CEAs to fulfill the requirement of quick extraction without sufficient stirring, such as the treatment of drug overdose or food poisoning. (c) 2005 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | PREDISPERSED SOLVENT-EXTRACTION ; LIQUID APHRONS ; STABILITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000232520100012 |
| 公开日期 | 2013-09-20 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/1583]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Tianjin Univ Sci & Technol, Coll Biotechnol, Key Lab Ind Microbiol, Tianjin 300222, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, T,Dai, YJ,Wang, J. A new kind of dispersion - colloidal emulsion aphrons[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2005,266(1-3):97-105. |
| APA | Deng, T,Dai, YJ,&Wang, J.(2005).A new kind of dispersion - colloidal emulsion aphrons.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,266(1-3),97-105. |
| MLA | Deng, T,et al."A new kind of dispersion - colloidal emulsion aphrons".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 266.1-3(2005):97-105. |
入库方式： OAI收割
来源：过程工程研究所
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