Phase behavior of oil/water/nonionic surfactant systems

被引:4
作者
Bayrak, Y [1 ]
Iscan, M [1 ]
机构
[1] Trakya Univ, Dept Chem, TR-22030 Edirne, Turkey
关键词
microemulsion; phase behavior; nonionic surfactants;
D O I
10.1081/DIS-200040133
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The phase behavior of oil/water/nonionic surfactant systems under the effect of temperature is usually only measured at an oil-to-water ratio of 1 : 1 (alpha = 0.5). It was found that with increasing oil-chain length and increasing hydrophilicity of the surfactant (Triton X-114 to Triton X-100), the three-phase region widens toward higher temperatures. The clear inclination of the "fishes" at constant oil-to-water ratios shows that the surfactant becomes more hydrophobic with increasing temperature. It was observed that the phase behavior of systems changes with the amount and kinds of added salts. The description of the experiments by the modified Landau-type model is satisfactory.
引用
收藏
页码:75 / 78
页数:4
相关论文
共 20 条
[1]   Quaternary N-alkylaldonamide-brine-decane-alcohol systems. Part I: phase behaviour and microemulsions [J].
Bastogne, F ;
David, C .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1998, 139 (03) :311-320
[2]  
BAYRAK Y, IN PRESS J SURFACT D
[3]  
CHAI JL, 2003, COLLOID SURF A, V1, P173
[4]  
Dorfler HD, 1995, TENSIDE SURFACT DET, V32, P484
[5]   WATER SOLUBILIZATION AND CHAIN-LENGTH COMPATIBILITY IN NONIONIC MICROEMULSIONS [J].
GARTI, N ;
ASERIN, A ;
EZRAHI, S ;
WACHTEL, E .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1995, 169 (02) :428-436
[6]   PHASE-BEHAVIOR OF TERNARY-SYSTEMS OF THE TYPE H2O-OIL-NONIONIC AMPHIPHILE (MICROEMULSIONS) [J].
KAHLWEIT, M ;
STREY, R .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1985, 24 (08) :654-668
[7]   PHASE-BEHAVIOR OF MULTICOMPONENT SYSTEMS WATER-OIL-AMPHIPHILE-ELECTROLYTE .3. [J].
KAHLWEIT, M ;
STREY, R ;
HAASE, D .
JOURNAL OF PHYSICAL CHEMISTRY, 1985, 89 (01) :163-171
[8]   CHARACTERIZATION OF MICELLAR SYSTEMS BY THE CONDUCTIVITY METHOD - SODIUM-SALT OF PERFLUOROPOLYETHER CARBOXYLIC-ACID [J].
KALLAY, N ;
TOMASIC, V ;
ZALAC, S ;
CHITTOFRATI, A .
COLLOID AND POLYMER SCIENCE, 1994, 272 (12) :1576-1581
[9]   Solution properties and PGSE-NMR self-diffusion study of C18:1E10/oil/water system [J].
Ko, CJ ;
Ko, YJ ;
Kim, DM ;
Park, HJ .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2003, 216 (1-3) :55-63
[10]   Phase behavior of polyglycerol didodecanoates in water [J].
Kunieda, H ;
Akahane, A ;
Jin-Feng ;
Ishitobi, M .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2002, 245 (02) :365-370