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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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