(186h) Wetting Behavior in Water + CiPj and Water + C3P1 + Tetradecane Systems
AIChE Annual Meeting
2010
2010 Annual Meeting
Engineering Sciences and Fundamentals
Poster Session: Interfacial Phenomena
Monday, November 8, 2010 - 6:00pm to 8:00pm
Binary systems, water + C3P1, water + C3P2, water + C4P1, water + C4P2 and water + C4P3, were chosen to perform the surface/interface tension measurements over the experimental temperature ranging from 10 to 40 °C at the normal pressure by pendent drop method. The symbol CiPj is the abbreviation of a oxypropylene glycol ether CH3(CH2)i-1(OCH2CH(CH3))jOH. It is found that there is a wetting transition from partial wetting to complete wetting in the system water+C3P2. The water + C3P1 system exhibits complete wetting and the other three systems of water + C4Pj exhibit partial wetting in the temperature window ranging from 10 to 40 °C. In the ternary system, water + C3P1 + tetradecane, the middle surfactant phase undergoes a sequence of wetting transitions: complete wetting → partial wetting → complete wetting in the three-liquid-phase-coexisting region driven from lower critical solution temperature to upper critical solution temperature. In addition, the phase equilibrium data of this ternary system were also measured by the gas chromatography at 25, 35 and 45 °C.