ISO 15989 Optical Contact Angle Tester Liquid Surface Tension Test
Machine
1. Summary
The Contact Angle is the tangent to the gas-liquid interface at the point where the
gas, liquid and solid meet. This tangent has an angle between the
liquid and the solid-liquid boundary. Contact angle measurement is
now the main method of surface performance inspection.
SDC-80 basic contact angle measuring instrument using optical
imaging principle, through the image profile analysis to measure
the sample surface contact angle, wetness, surface energy and other
properties. It is a cost-effective and versatile instrument that
can meet the requirements of traditional sample surface moisture
measurement.
2. Application
Contact Angle Measuring Instrument is widely used in various
industries. In the fields of mobile phone manufacturing, glass
manufacturing, surface treatment, material research, chemical
industry, semiconductor manufacturing, coating and ink, electronic
circuit, textile and fiber, medical and biological, contact angle
measurement has become an important instrument for evaluating
surface properties.
1. Wetting behaviors of liquid on solid surface, such as spreading,
infiltration and absorption, etc., static contact Angle was
measured by droplet method;
2. Measurement of forward Angle, backward Angle, contact Angle lag,
rolling Angle and dynamic contact Angle of materials on solid
surface;
3. Continuous real-time research and process recording of
absorption materials, and curve analysis of contact Angle changes
with time;
4. Measurement of contact Angle of various special materials, such
as powder, curved surface, superhydrophobic/superhydrophilic
samples;
5. Test the contact Angle of the material immersed in the liquid by
adhesive drop method;
6. Measurement of interfacial tension, polarity and dispersion
components of various liquid surface by droplet method;
7. Calculate the Surface free energy and analyze its polar
dispersion component;
8. Analyze the adherent work of liquid on solid surface to evaluate
the uniformity and cleanliness of solid surface.
3. Principle
As shown in the figure above, the contact Angle measuring
instrument is mainly composed of five parts: light source,
injection unit, sample table, acquisition system and analysis
software. The equipment adopts the principle of optical imaging.
Light source adopts dense LED cold light design, uniform light
emitting, image cleaning, long life;
The injection unit adopts micro manual knob type liquid injection,
with stable drip and high precision;
The sample table adopts 3d manual fine adjustment platform,
flexible operation, accurate positioning, the sample table can be
customized according to the actual sample size;
The acquisition system adopts the black and white imported CCD
camera, which is stable to shoot, with clear and reliable images.
The lens is equipped with the German industrial-grade imported
configuration, with the magnification adjustable from 0.7 to 4.5
times, and the imaging is free from deformation.
The analysis software has powerful functions, has one-button
automatic fitting ability, has the most advanced fitting method in
the world, and meets the precise fitting of various droplet forms
4. Specifications
| Contact Angle main engine |
| Outside size | 550mm(L)*360mm(W)*470mm(H) |
| Weight | 11KG |
| Power | 220V /50/ 60HZ |
| light source system |
| Ligh source | Dense LED can adjust white tone industrial grade cold light source |
| lifetime | The service life is more than 25,000 hours |
| injection unit |
| injection syringe | Dedicated precision syringe capacity 1000μL |
| dropping liquid | Manual rotary injection, drip precision can be achieved 0.2μL |
| Injection unit movement | Up down 100mm; left right 100mm |
| Acquisition system |
| CCD | SONY Imported high speed industrial chip, 25 frames /S, 130W pixels |
| Lens | 0.7-4.5X High definition industrial class continuous variable magnification
microscope |
| Acquisition system adjustment | Around 30 mm, view Angle adjustable (smooth inspect, look down,
look up, rotate 360 ° Angle of view, etc) |
| Sample station installation |
| Table size | 120mm*150mm |
| Maximum sample size | 6inch |
| Sample table movement | Before-after move manual,stroke 60mm,accuracy 0.1mm
Left-right move manual,stroke 35mm,accuracy 0.1mm
UP Down move manual,stroke 80mm,accuracy 0.1mm |
| Analysis software |
| Contact Angle measurement range | 0-180° |
| Accuracy of contact Angle measurement | ±0.1° |
| Analyze software functions | 1. Automatic fitting method of the most advanced contact Angle
measurement and analysis software in China (one-key automatic
fitting,
There is no manual error) including: Circle method, Ellipse/Oblique ellipse LY,Differential circle / Differential ellipse;
2. Dynamic contact Angle fitting (batch fitting of multiple images)
includes:(Wettability),(Video analysis);3. Surface energy calculation; 4. Adhesion funciton; |
5. Accord with national standard
1.GB/T 24368-2009(Detection of hydrophobic contaminants on glass surface);
2.SY/T5153-2007(Method for determination of wettability of reservoir rocks);
3.ASTM D 724-99(2003)(Test method for wettability of paper surfaces);
4.ASTM D5946-2004(Measurement of the contact Angle between plastic film and water);
5.ISO15989(Measurement of water contact Angle of plastic film and thin plate
corona treated film);
6. Product features
1. The integrated chip circuit control independently researched and
developed, and adopts the design essence and configuration of the
international top imported contact Angle equipment to ensure the
instrument has a strong stability;
2. Industrial grade dense adjustable LED cold light source system
(life of more than 25000H) is adopted to ensure clearer imaging and
avoid evaporation of small droplets caused by extra heat;
3. High performance imported industrial movement from Japan,
industrial grade
Continuous variable-magnification microscope, to ensure the
authenticity of the image, to obtain
Optimal imaging results;
4. USB2.0 standard interface, fast data transmission speed, high
compatibility and strong imaging stability;
5. the contact Angle measurement calibration sample provide German
imports to ensure precision instruments, Angle calibration standard
3 ° 5 ° 8 °;60 ° 90 ° 120 °;115 ° (optional);
6. The collection system is flexible in design, suitable for most
of the measurement environment, and simple to deal with a variety
of complex sample surface measurement;
7. It has the world's most advanced contact Angle analysis method
to meet all kinds of liquids
Accurate fitting of droplet imaging, including shengding's unique
differential ellipse
Fitting method with differential circle special liquid imaging;
8. Adopting the internationally leading calculation method, the
software has realized automatic fitting to avoid errors caused by
human operation;
9. Quick fitting function for bilateral contact Angle measurement,
more comprehensive quantitative analysis
The wettability of liquid and solid surfaces for more accurate
Actual wetting conditions;
10. Dynamic shooting and video quick test data can continuously
record the change of test contact Angle, and then the software can
automatically batch fit;
11. The software automatically generates reports, which are covered
Word format, Excel format, spectrum
Various forms of data report;
