fundamentals of interface chemistry  
measure method of surface tensiometer  
measure mehod of contact angle meter  
measure mehod of spinning drop tensiometer  
References and Applications  
Dictionary and Glossary  
Glossary A-G  
Glossary H-M  
Glossary O-T  
Glossary U-Z  
Standards  
Video Collection  
product
about
News
  View Products
 
  contact us
 
 
> HOME > References and Applications >Measurement of Dynamic Interfacial Tension by an Expanding Drop Tensiometer
Measurement of Dynamic Interfacial Tension by an Expanding Drop Tensiometer

          R. NagarajanD.T. Wasan

  • Department of Chemical Engineering, Illinois Institute of Technology, Chicago, Illinois 60616

 

 

Abstract

An accurate, nonintrusive method is described to measure the dynamic tension of dilated liquid-liquid interfaces. In this method, the time-dependent pressure difference across the curved interface of an expanding spherical drop, immersed in the second immiscible phase, was measured as a function of time. A sensitive apparatus employing this principle was constructed. Experiments were performed with a drop of dodecane expanding in an aqueous solution of a nonionic surfactant. In such a system, the dynamic interfacial tension depends upon the adsorption kinetics of the surfactant. A diffusion/adsorption model was formulated to describe the transport and exchange of surfactant species with the interface and the bulk phases. The analytical solution for this model was in good agreement with experimental data. The experiment also provided a direct value of the Gibbs elasticity. The noninvasiveness and the direct measurement of the capillary pressure make this technique an attractive and powerful tool.

http://www.sciencedirect.com/science/article/pii/S0021979783713081

 

 
 

Hot keywords of USA KINO:
contact anglecontact angle measurement,  contact angle meter,  contact angle goniometer,  surface tensiometer, interfacial tensiometer,  surface tension measurement,  surface tension, surface tensiometry, contact angle measurement equipment and device, calculating surfac free energy, Determining Critical Micelle Concentration (CMC) of surfactant, made in China

 

Home / News / Products / Articles / Downloads / About USA KINO / Feedback / Jobs / Contact USA KINO

 
Copy Right(C)2005-2014 USA KINO Industry Co., LTD. sales@uskino.com. sales@kinochina.com All rights reserved. Sitemap
Follow US: youtube of USA KINO facebook of USA KINO

Link: KINO China, USA KINO
surface_tension.org
contact_angle.org contact_angle.com.cn contact_angle.net surface_tension.com.cn interfacial_tension.com surface_tensiometer.com

KeyWords of USA KINO: we are the manufacturer of surface tensiometer which is used to measurement of surface tension or surface tension of liquid/ and supplier of contact angle meter also named as contact angle goniometer for measurement of contact angle or contact angle between liquid-solid and expert of interfacial tensiometer which is used to measure interface tension interfacial tension by pendant drop method, sessile drop method, Wilhelmy plate method ,DuNouy Ring method and spinning drop method