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
