Static contact angle measurement involves the placement of microliter sized droplets on a sample surface. The angle formed at the boundary of the droplet is the contact angle, which characterizes a surface’s wettability. Dynamic contact angle measurements quantify contact angle hysteresis (the difference between advancing and receding contact angles), roll-off angle and absorption which can be useful for both non-absorbing and sponge-like materials. The single atomic layer sensitivity makes contact angle measurement ideal for surface cleanliness and contamination detection for medical devices, fabrics, thin films and wafers.

Kyowa sells a range of high quality instruments to measure contact angle to meet a variety of testing needs.

DMe-211

The DMe-211 is an economical yet fully-featured contact angle meter with a computer image analysis system.

The unit combines manual droplet volume regulation, stage up/down motion for gentle deposition of droplets with “FAMAS-basic” software controlled analysis of static and dynamic contact angle (30fps) as well as surface and interfacial tension using the pendant drop method. Analysis software to determine the surface free energy of solids is a standard feature. LINK

  • Automatic recognition of droplet deposition
  • Live image display and droplet volume monitoring
  • Movie converter
  • Manual dispenser with a set of 5 glass syringes and 5 SUS needles for precise adjustment of droplet volume and quick refilling and replacement of liquid samples
  • Fine adjustable stage in z-axis for gentle deposition of droplets without distortion
  • Adjustable level of the body and stage
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

DMs-401

The DMs-401 is a compact yet high-performance surface measuring instrument for the measurement of static and dynamic contact angles, surface free energy of solids and surface and interfacial tension of liquids. Its functions can be easily extended due to its sophisticated modular design. Optional accessories, such as a computer-controlled dispenser, temperature control devices, and an external tilting stage system are available. LINK

Features

  • Automatic recognition of droplet deposition
  • Live image display and droplet volume monitoring
  • Movie converter
  • Manual dispenser with a set of 5 glass syringes and 5 SUS needles for precise adjustment of droplet volume and quick refilling and replacement of liquid samples
  • Fine adjustable stage in z-axis for gentle deposition of droplets without distortion
  • Adjustable level of the body and stage
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

DMo Series

The four models of the DMo series are high-performance contact angle meters, only differing in their grade of automation. The high-speed camera and computer controlled dispenser allow for precise measurements of static and dynamic contact angles, surface and interfacial tension of liquids as well as analysis of surface free energy of solids. A wide range of options are available and lower grade models can also be upgraded later. LINK

Features

  • Fast image capturing system with standard 125 fps at 640×480 resolution USB 3.0 camera, max. 333fps at 640×136 resolution
  • Automatic single dispenser system
  • 150x150mm wide sample stage with a maximum load capacity (temperature chamber + sample) of 1.4kgs
  • Stage travel distance: x-axis: 150mm, y-axis: 75mm, z-axis: fixed
  • Focusing aid with displayed index graph and value and brightness adjustment to achieve perfect focus
  • Movie converter to convert data images to MPEG-1 or AVI movie format
  • Determination of contact angles, droplet volume, residual droplet volume, sessile drop volume, height and radius of sessile drop
  • Measured results are displayed in a spreadsheet for easy reference and comparison, and saved in csv format for easy export to and manipulation in MS Excel
  • User-specified analysis report function, providing measurement results and parameters
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

DMo-WA Series

The three models of the DMo-WA series are specially designed contact angle meters for measurements of disk-shaped substrates such as silicon wafer with a diameter of up to 300mm.
All models feature a 305mm diameter rotation table and a computer controlled dispenser which allow for automatic measurements of contact angle, advancing and receding angles, as well as analysis of surface free energy of solids.
Optional, a tilting stage for the measurement of roll-off angles is also available. LINK

Features

  • Automatic recognition of drop deposition
  • Live image display and droplet volume monitoring
  • Movie converter
  • Automatic dispenser with a set of 5 glass syringes and 5 SUS needles for precise adjustment of droplet volume and quick refilling and replacement of liquid samples
  • Fine adjustable stage in x- and z-axis for exact positioning and gentle deposition of droplets without distortion
  • Adjustable level of the body and stage
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

PCA-11

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The portable contact angle meter PCA11 is a compact and lightweight device for fully automated on-site measurements of contact angle, surface tension and surface free energy of solids.

Testing on-site for quality control and evaluation of surface wettability, which is characterized by the contact angle, is often required during manufacturing processes or in the field. The PCA-11 can be used on any material such as glass, metal, film, paper & pulp, polymer, wood, etc. that have to be measured on-site or that due to their size or shape cannot be analyzed with usual stationary contact angle measuring instruments.
Weighing only 650g, combined with the single-click fully automated operation and its precise measurements, the PCA-11 is the ideal solution for non-destructive surface evaluations. LINK

Features

  • Single-click fully automated operation
  • Precise measurement of contact angles, even on slopes of up to 90 degrees
  • Analysis of surface free energy
  • Measurement of surface tension using the pendant drop method
  • Time-dependent measurements by image capture of up to 30 fps
  • 500 droplets with a volume of 1μl can be generated with one prepared syringe
  • Simple replacement of syringe and liquid sample via easily accessible front door
  • Visible needle tip allows precise capture of the target point
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

FPD-CP11

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The FPD-CP11 system consists of the main measuring head, a metering pump with a 50mL capacity liquid container and a control box, and it has been developed for non-contact measurements of contact angles on flat panel displays such as LCD, LED, OLED and silicon wafer. It has been designed to be attached to metrology systems that combine several different measuring devices in one system. The communication and data transmission between this host system and our FPD-CP11 is achieved via an RS-232C serial port connection.

The system is specially designed to observe droplet with lateral image capturing system and the optical system is set at a slight angle, making it possible to measure contact angles without having contact with the panel’s delicate surfaces. Thanks to this lateral image capturing system, the FPD-CP11 is not limited to only 90 degrees, such as top-view measuring systems, but instead, it delivers high-accuracy and reliable measurements in a range from about 3 to 175 degrees. LINK

Features

  • Single-click automatic measurements, to be operated from a host system
  • Precise and reliable measurement of contact angles from about 3 to 175 degrees
  • Time-dependent measurements by image capture up to 30 fps
  • Metering pump, incl. a 50mL liquid container, allowing 50,000 1μl droplets with one prepared liquid container
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

MCA-3

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The MCA-3 utilizes a precise electric micro-injector system and a high-quality optical system for accurate contact angle measurements of micro-droplets on small surface areas of only 100 x 100µm. With special capillaries available with three different inner diameters, micro-droplets in a range of about 10 to 1000pL can be produced with high reproducibility. This state of the art system is equipped with an additional top-view camera that enables the deposition of droplets with pinpoint accuracy and the observation of the three-phase line and the spreading of micro-droplets on solid surfaces. LINK

Features

  • Automatic recognition of drop deposition by FAMAS analysis software
  • Top view camera allows for deposition of droplets with pinpoint accuracy and for observation of the spreading of micro-droplets
  • The high magnification lens and a 12-fold zoom provide a field of view from approximately 75×56µm to 910×680µm
  • Fine adjustable micro stage in x-, y- and z-axis for exact positioning
  • Fast image capture system allows accurate measurements of even quick evaporating pico-liter droplets
  • Droplet calibration standard bearing three sets of one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

For more information, please visit http://www.face-kyowa.co.jp/english/en_products/en_contact_angle/