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Views: 0 Author: Site Editor Publish Time: 2025-05-15 Origin: Site
Interfacial tension (IFT) between liquids dictates emulsion stability, extraction efficiency, and enhanced oil recovery performance. The Fully Automatic Interfacial Tension Meter from Changsha Friend Experimental Analysis Instrument Co., Ltd. automates classic methods—such as pendant drop and spinning drop—providing accurate, reproducible IFT data for research and quality control.
In petrochemicals and pharmaceuticals, IFT influences formulation stability, droplet size distribution, and mixing behavior. Reliable measurement allows engineers and scientists to optimize surfactant concentrations, solvent selections, and process parameters.
Pendant Drop: A droplet of one liquid is suspended in another; its shape under gravity is analyzed to derive IFT.
Spinning Drop: A droplet is elongated by centrifugal force in a rotating capillary; the resulting shape relates directly to interfacial tension.
Changsha Friend’s instrument supports both techniques via interchangeable modules, controlled through an intuitive software interface.
Motorized stage and high‑resolution camera: Capture drop profiles with sub‑micron precision.
Temperature‑controlled chamber: Maintains sample environment from ambient up to 100 °C.
Automated image analysis: Applies Young–Laplace or Vonnegut equations for direct IFT calculation.
Batch processing: Programs sequential tests with different samples or conditions.
Enhanced oil recovery (EOR): Screens surfactants and polymers for reservoir conditions.
Cosmetic formulations: Ensures emulsion stability in creams and lotions.
Pharmaceutical emulsions: Controls droplet size for drug delivery systems.
Food science: Optimizes ingredient interactions in dressings and beverages.
Calibrate with standard IFT fluids before use. Clean optical windows and replace seals to prevent sample carryover. Regular software updates and alignment checks maintain measurement integrity.
