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表面张力仪
Wilhelmy plate and Du Noüy ring tensiometer
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Overview - Principle
表面张力仪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.
表面张力仪原理
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.
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 Surfactants properties Powder wettability Fibers (individual or not), membranes wettability Capillary rising Ascending and receding contact angle Liquid density Sedimentation Surface tension (liquid - gas) Interfacial tension (liquid - liquid) Critic Micellar Concentration Contact angle (liquid - solid) Powder wettability Density Sedimentation表面张力仪Specifications
表面张力仪Applications
Mesures
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