Contact Angle, Surface Interface Tools

Surface Tension Meter

DY-300

The DY-300 is a fully-automatic, multi-purpose, and easy-to-use surface tensiometer for reliable measurements of surface and interfacial tension, lamella length, sedimentation behavior, and liquid density. With its repetitive measurement function, the DY-300 is the ideal instrument for measurements in quality control. The high-quality components and the durable design combined with a video user manual integrated into the software guarantee user-friendly operation. Optional, jacket or heater type stages and a thermometer are also available.

Features
  • "One-click" fully automated operation
  • Pre-wetting function to eliminate measurement errors caused by unsuccessful wetting of Wilhelmy plate or du Noüy ring
  • Easy parameter setting to adapt various measuring standards
  • Video user manual for user-friendly operation
  • Adjustable level of the body
  • Calibration by external weights for periodic inspection of measurement accuracy
Options

Hardware

  • Sedimentation behavior measurement kit
  • Liquid density measurement kit
  • Jacket type sample stage for temperature measurements from +10 to 70℃
  • Heater type sample stage for temperature measurements from ambient to +150℃
Applications

Hardware

  • Surface tension: Paints, inks, additives for coating processes
  • Interfacial tension: Transformer oil, emulsions, surfactant solutions
  • Lamella length: Paint leveling, foaming stability of coatings and fire extinguishing agents
  • Sedimentation behavior: Flocculants used in wastewater treatment, stability of dispersions, such as paints and pigmented inks
Specifications
  DY-300
Measuring methods




surface tension (Wilhelmy plate and du Noüy ring method)
interfacial tension (Wilhelmy plate and du Noüy ring method)
lamella length (with use of the du Noüy ring)
liquid density 1)
sedimentation behavior 1)
Measuring range surface/interfacial tension: 1 to 1000mN/m
Resolution 0.01mN/m
Accuracy2) 0.2mN/m
Calibration method by external calibration weights
Sample stage operation:
Speed
Stroke
software-controlled
0.1 to 1.0mm/s
48mm
External dimensions
(WxDxH)
255x309x369mm

Approximately weight 12.5kg
Electric power:
Voltage
Frequency
Power consumption

AC100-240V
50/60 Hz
35W 75VA
Operating environment

temperature: +10 to +35℃, humidity: 30-80%RH (non-condensing)
positioned away from sources of electrical noise and vibration

 

 

DY-500 / DY-700

The DY-500 and DY-700 share the same body design and only differ by the integrated weighing system, with the DY-700 offering 10 times the readability of the DY-500. Both are fully automatic, high-precision, and easy-to-use surface tensiometers for reliable measurements of dynamic contact angle and powder contact angle, in addition to measurements of surface and interfacial tension, lamella length, liquid and solid density, sedimentation behavior, and evaporation rate. Due to their accuracy and high versatility, both models are ideal for use in R&D as well as for reliable measurements for routine quality assurance. High-quality components and the durable design combined with a video user manual integrated into the software guarantee user-friendly operation of the instrument and software.

Features

  • "One-click" fully automated operation
  • Jacket type sample stage with built-in stirrer function
  • Built-in temperature sensor
  • Connections to the sample chamber for inert gas
  • Pre-wetting function to eliminate measurement errors caused by unsuccessful wetting of Wilhelmy plate or du Noüy ring
  • Easy parameter setup to adapt various measuring standards
  • Video user manual for user-friendly operation
  • Adjustable level of the body
  • Calibration by an external weight for the DY-500 and by an internal calibration system for the DY-700

Options

Hardware

  • Powder contact angle measurement kit
  • Dynamic contact angle measurement kit
  • Automatic CMC measurement kit
  • Sedimentation behavior measurement kit
  • Liquid & solid density measurement kits
  • Heater type sample stage for temperature measurements from ambient to +150℃

Software

  • Dynalyzer software add-in [powder contact angle measurement]
  • Dynalyzer software add-in [dynamic contact angle measurement]

Applications

  • Surface tension: Paints, inks, additives for coating processes
  • Interfacial tension: Transformer oil, emulsions, surfactant solutions
  • Lamella length: Paint leveling, foaming stability of coatings and fire extinguishing agents
  • Sedimentation behavior:  Flocculants used in wastewater treatment, stability of suspensions, such as paints and pigmented inks
  • Powder contact angle: Wetting properties of powders, inks, and paints
  • Dynamic contact angle: Wetting and adhesion properties of coatings

Specifications

  DY-500 DY-700
Measuring methods






surface tension (Wilhelmy plate and du Noüy ring)
interfacial tension (Wilhelmy plate and du Noüy ring)
lamella length (du Noüy ring)
liquid & solid density 1)
sedimentation behavior 1)
powder contact angle (Washburn method) 1)
dynamic contact angle 1)
Measuring range


surface/interfacial tension: 1 to 1000mN/m
powder contact angle: 0-90°
dynamic contact angle: 0-180°
Resolution


surface/interfacial tension: 0.01mN/m
powder contact angle: 0.01°
dynamic contact angle: 0.01°
Accuracy2)


surface/interfacial tension: 0.2mN/m
contact angle: 0.2°
surface/interfacial tension: 0.02mN/m
contact angle: 0.02°
Calibration method by an external calibration weight by a built-in calibration system
Sample stage operation:
Speed
Stroke
software controlled
0.002 to 50mm/s
50mm
External dimensions
(WxDxH)
295x415x425mm

Approximately weight 20.0kg 23.0kg
Electric power:
Voltage
Frequency
Power consumption

AC100-240V
50/60 Hz
35W 75VA
Operating environment

temperature: +10 to +35℃, humidity: 30-80%RH (non-condensing)
positioned away from sources of electrical noise and vibration

 

 

 

 

BP-D5

The BP-D5 is a fully automatic bubble pressure tensiometer for measurement of the dynamic surface tension of aqueous surfactant solutions in a time function or at a fixed surface age. For monitoring the bubble formation, the pressure voltage waveform is displayed in real-time and bubble formation is made visible by a synchronized built-in stroboscope.

Temperature-dependent measurements can also be carried out with the built-in jacket type stage and thermometer.

Features
  • "One-click" fully automated operation
  • Surface tension against surface age (from 20 to 5,000ms) chart is computed and plotted automatically
  • Measurement of the dynamic surface tension at a specific surface age from 20 to 1000ms.
  • Real-time display of the bubble pressure waveform to monitor the conditions of the bubble generation
  • Extrapolation of the averaged raw data according to a method suggested by Hua & Rosen
  • The bubble generation from the capillary is made visible by a synchronized built-in stroboscopic lamp
  • Built-in jacket type stage and platinum resistance thermometer for measurements in the range of +10 to +70℃
  • Ultrasonic cleaner for cleaning of the glass probes
Options

Hardware

  • Air tank for a surface age range from 20 to 15000ms
Applications
  • Determination of the characteristics of surfactants, such as concentration, lifetime, and dynamic surface tension
  • Dynamic surface tension and instant wettability of inks and coating fluids
  • Determination of the absorbing rate of surfactants to control the dynamic surface tension
  • Instant forming of microdroplets with regards to aerosols and emulsifiers
  • Determination of instant foaming of detergents and fire extinguishing fluids
Specifications
  BP-D5
Measuring methods Maximum bubble pressure method
Measuring range 10 to 100mN/m
Resolution 0.01mN/m
Accuracy1) 0.5mN/m
Surface age range of dynamic surface tension in a time function: 20 to 5000ms, optional: 20 to 15000ms
at a fixed surface age: 20 to 1000ms
Sample volume about 80mL
Sample viscosity range 0.5 to 10mPa・s
Sample stage operation by software-controlled pneumatic cylinder
Air supply pressure 0.4 to 0.7Mpa
External dimensions
(WxDxH)
320x315x475mm
Approximately weight 18.5kg
Electric power:
Voltage
Frequency
Power consumption

AC100-240V
50/60Hz
50W 80VA
Operating environment

temperature: +10 to +35℃, humidity: 30-80%RH (non-condensing)
positioned away from sources of electrical noise and vibration