emulsion characterisation

 DBMM-1M Drop Bubble Micro Manipulator

The DBMM-1M allows mimicking the situation in foams and emulsions, i.e. mimics the contact of two bubbles or two drops in a respective liquid medium.

emulsion characterisation

DBMM-1M Drop Bubble Micro Manipulator

At present, we do not provide yet an instrument for direct studies of the main emulsion properties. The concept of our DBMM1, however, allows mimicking the situation in foams and emulsions, i.e. mimics the contact of two bubbles or two drops in a respective liquid medium. Also asymmetric systems like interaction of a drop and a bubble can be studied. Combined with our fast video technique HSC it is feasible to study the coalescence process between drops and/or bubbles in real time, i.e. on the scale of microseconds.

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PAT-1M Main
PAT-1M View 2
PAT-1M View 3
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Overview Information Applications Inquiry
Key facts
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special equipment is dedicated to studies of the direct interaction between droplets or bubbles.

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Systems like emulsions or foams or foamed emulsions consist of ensembles of drops or bubbles or mixed drops and bubbles. The direct interaction of these entities yields information on the stability of the liquid disperse systems.

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fits as accessory into the profile analysis tensiometer PAT-1M

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gives access to the capillary pressure inside the individual drops or bubbles

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allows to manipulate the size of the two entities

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allows to move the entities against each other to bring into interaction

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measures the time of coalescence

Features

Measurement Features

  • • surface and interfacial tension of liquids (also of iso-dense systems)
  • • coalescence of drop-drop, bubblebubble, and drop-bubble systems
  • • dynamic interfacial tensions in the short time range (0.01 - 100 s)
  • • available needles allow to form drops or bubble on a scale between 50 μm
    and 1 mm or more
  • • drops or bubbles can be manipulated by a very fine piezo dosing system
  • • entities of different size can be used at the two sides
Software

Main features of the software

  • • on-line registration of capillary pressure at both sides
  • • control of fine dosing systems for definite changes of a drop or bubble
  • • fast capillary pressure registration for dynamic interfacial tension measurements according to a maximum drop pressure routine

Work in Progress

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Applications & Use Cases

Case 3

Enhanced Oil Recovery (EOR)

Analyzing ultra-low interfacial tension for tertiary oil production optimization.

Case 3

Oil-Water Separation

Optimizing demulsifiers for efficient separation in refineries and wastewater plants.

Case 2

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If your specific use case is not listed here, please contact us for further information. Our team will be happy to discuss your enquiry with you

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