High-Accuracy & High-Performance Surface Tensiometers: DY-700 & DY-500
The DY-700 and DY-500 are fully automated, multi-purpose surface tensiometers designed for high-precision surface and interfacial tension measurement, as well as advanced characterization of dynamic contact angle, powder wettability, lamella length, sedimentation behavior, evaporation rate, and density.
Key Features:
Multi-Method Measurement Capability
• Wilhelmy plate method (standard) for static and time-dependent surface tension
• du Noüy ring method (optional) with automatic correction
• Supports both surface tension and interfacial tension measurements
• Enables lamella length and rupture behavior analysis
This flexibility allows a single instrument to replace multiple conventional testers.
• du Noüy ring method (optional) with automatic correction
• Supports both surface tension and interfacial tension measurements
• Enables lamella length and rupture behavior analysis
This flexibility allows a single instrument to replace multiple conventional testers.
Ultra-Stable High-Resolution Force Measurement
• DY-700: repeatability down to 0.02 mN/m
• DY-500: repeatability down to 0.2 mN/m
• High sampling frequency enables smooth, noise-free force curves
• Ideal for detecting subtle formulation changes or surfactant effects
This level of sensitivity is critical for R&D, surfactant screening, and high-value materials.
• DY-500: repeatability down to 0.2 mN/m
• High sampling frequency enables smooth, noise-free force curves
• Ideal for detecting subtle formulation changes or surfactant effects
This level of sensitivity is critical for R&D, surfactant screening, and high-value materials.
Advanced Time-Dependent & Dynamic Analysis
• Continuous monitoring of surface tension over time
• Enables dynamic contact angle measurement (advancing/receding)
• Accurate evaluation of surfactant adsorption kinetics
• Automated Critical Micelle Concentration (CMC) determination
These functions provide insight beyond simple equilibrium values.
• Enables dynamic contact angle measurement (advancing/receding)
• Accurate evaluation of surfactant adsorption kinetics
• Automated Critical Micelle Concentration (CMC) determination
These functions provide insight beyond simple equilibrium values.
Powder Wettability & Infiltration Analysis
• Measures powder contact angle using the Wilhelmy method
• Evaluates liquid infiltration speed into powders
• Useful for pigments, fillers, pharmaceuticals, battery materials, and ceramics
• This capability is especially valuable where powder dispersion behavior affects product performance.
• Evaluates liquid infiltration speed into powders
• Useful for pigments, fillers, pharmaceuticals, battery materials, and ceramics
• This capability is especially valuable where powder dispersion behavior affects product performance.
Integrated Temperature & Environmental Control
• Built-in surface temperature sensor
• Jacket-type temperature-controlled stage (standard on DY-500, optional on DY-700)
• Supports external circulators for precise thermal studies
Ensures reproducible results even for temperature-sensitive liquids.
• Jacket-type temperature-controlled stage (standard on DY-500, optional on DY-700)
• Supports external circulators for precise thermal studies
Ensures reproducible results even for temperature-sensitive liquids.