Preparation of W/O (water-in-oil) emulsions using a PTFE (polytetrafluoroethylene) membrane - A new emulsification device
文献类型：期刊论文
| 作者 | Yamazaki, N; Naganuma, K; Nagai, M; Ma, GH; Omi, S |
| 刊名 | JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2003 |
| 卷号 | 24期号:2页码:249-257 |
| 关键词 | membrane emulsification PTFE (polytetrafluoroethylene) membrane SPG (Shirasu porous glass) membrane W/O (water-in-oil) emulsion emulsification apparatus |
| ISSN号 | 0193-2691 |
| 英文摘要 | The potential of polytetrafluoroethylene (PTFE) membranes as water-in-oil (W/O) emulsification devices was investigated to obtain uniformly sized droplets and to convert them into microcapsules and polymer particles via subsequent treatments. Uniform W/O emulsion droplets have not been achieved using glass membranes unless the membrane was rendered hydrophobic by treatment with silanes. If a PTFE membrane is capable of providing uniform droplets for a W/O emulsion, a coordinated membrane emulsification system can be established since glass membranes have been so successful for O/W (oil-in-water) emulsification. In order to examine the feasibility of PTFE membrane emulsification, O/W and W/O emulsion characteristics prepared using PTFE membranes were compared with those prepared by the conventional SPG (Shirasu porous glass) membrane emulsification method. A 3 wt.% sodium chloride solution was dispersed in kerosene using a low HLB surfactant. Effects of the membrane pore size, permeation pressure, and the type of emulsifiers and concentration on the droplet size and on the size distribution (CV, coefficient of variation) were investigated. The CV of the droplets was fairly low, and the average droplet size was correlated with the critical permeation pressure of the dispersed phase, revealing that the PTFE membrane could be used as a one-pass membrane emulsification device. Low CV values were maintained with a Span 85 (HLB = 1.8) concentration, 0.2-5.0 wt.% and a range of HLB from 1.8-5.0. For a brief demonstration of practical applications, nylon-6,10 microcapsules prepared by interfacial polycondensation and poly(acrylamide) hydrogels from inverse suspension polymerization are illustrated. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | SHIRASU POROUS-GLASS ; POLYMERIC MICROSPHERES ; SPG EMULSIFICATION ; DROPLETS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000182550100011 |
| 公开日期 | 2013-09-20 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/1573]  |
| 专题 | 过程工程研究所_生化工程国家重点实验室 |
| 作者单位 | 1.Tokyo Univ Agr & Technol, Grad Sch Bioapplicat & Syst Engn, Tokyo 1848588, Japan 2.Chinese Acad Sci, State Key Lab Biochem Engn, Inst Proc Engn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yamazaki, N,Naganuma, K,Nagai, M,et al. Preparation of W/O (water-in-oil) emulsions using a PTFE (polytetrafluoroethylene) membrane - A new emulsification device[J]. JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY,2003,24(2):249-257. |
| APA | Yamazaki, N,Naganuma, K,Nagai, M,Ma, GH,&Omi, S.(2003).Preparation of W/O (water-in-oil) emulsions using a PTFE (polytetrafluoroethylene) membrane - A new emulsification device.JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY,24(2),249-257. |
| MLA | Yamazaki, N,et al."Preparation of W/O (water-in-oil) emulsions using a PTFE (polytetrafluoroethylene) membrane - A new emulsification device".JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY 24.2(2003):249-257. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。