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      表面張力儀

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      表面張力儀WilhelmyplateandDuNoüyringtensiometerOverview-Principle表面張力儀TensioCADisatensiometerbasedontheprincipleofmeasuringaforceagainstadisplacement

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      表面張力儀

      Wilhelmy plate and Du Noüy ring tensiometer

      Overview - Principle

      表面張力儀TensioCAD is a tensiometer based on the principle of measuring a force against a displacement. This method, often called force tensiometry or Wilhelmy method, consists in diving a platinium plate of perimeter L in a liquid having a superficial tension σ. Platinium plate is then lift and, with the help of a balance, the capillary force F exerted on the plate is measured.

      表面張力儀原理

      Equiped with a high precision weighing cell and coupled to a user-friendly and full software, TensioCAD is a tensiometer which helps you in numerous type of applications and measurements. TensioCAD offers 3 types of measurements: Wilhelmy plate, Du Noüy ring or Washburn method.

      表面張力儀Specifications

      Weight

      0,001 à 120 g

      Weight sensitivity

      0,0001 g

      Surface Tension

      1 à 1 000 mN.m-1

      Surface tension accuracy

      0.01 mN.m-1

      Temperature (optional)

      5 à 60 °C

       

      表面張力儀Applications

      • Surfactants properties

      • Powder wettability

      • Fibers (individual or not), membranes wettability

      • Capillary rising

      • Ascending and receding contact angle

      • Liquid density

      • Sedimentation

      Mesures

      • Surface tension (liquid - gas)

      • Interfacial tension (liquid - liquid)

      • Critic Micellar Concentration

      • Contact angle (liquid - solid)

      • Powder wettability

      • Density

      • Sedimentation












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