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LR-SDC-350 Automatic Tilt Contact Angle Measuring Instrument

1, Preface

Contact Angle refers to the tangent of gas-liquid interface made at the intersection of gas, liquid and solid. This tangent is in the Angle theta between the liquid side and the solid-liquid boundary. Contact Angle measurement is the main method of surface performance detection nowadays.

LR-SDC – 350 type the tilting contact Angle measurement instrument is using the principle of optical imaging, image contour analysis way to measure the surface contact Angle, wettability, interfacial tension of table, surface energy, rolling slip (Angle), forward backward Angle and hysteresis, such as performance, equipment using automatic liquid into the device and the tilting device automatically, fully functional, high cost performance, can meet the demａnd of conventional measurement, has been widely used in many colleges and universities institutes and enterprises.

2. LR-SDC-350 Automatic Tilt Contact Angle Measuring Instrument
3. Instrument Application Field

S Contact Angle measurement instrument is widely used in various fields, such as mobile phone manufacturing, glass manufacturing, surface treatment, material research, chemical engineering, semiconductor manufacturing, coating ink, electronic circuit, textile fiber, medical biology and other fields, contact Angle measurement has become an important instrument to evaluate the surface performance.

(select special accessories for some test functions)

1. The wetting behavior of the liquid on the solid surface, such as spreading, penetration and absorption, is measured by the static contact Angle with the droplet method;
2. Measure the forward Angle, backward Angle, contact Angle lag, rolling Angle and dynamic contact Angle of the material on the solid surface;
3. Continuous real-time study of absorption materials, process record, and analysis of contact Angle curve with time;
4. Contact Angle measurement of various special materials, such as powder, curved surface, super hydrophobic/super hydrophilic samples;
5. Test the contact Angle of the material immersed in the liquid by the adhesive drop method;
6. Measuring interfacial tension of various liquid surfaces and their polarity and dispersion components by hanging drop method;
7. Calculate the Surface free energy and its polar dispersion component;
8. Analysis of the liquid on the solid surface adhesion (Adhersion), assessment of solid surface uniformity, cleanliness, etc.

LR-SDC-350 Automatic Tilt Contact Angle Measuring Instrument

3.Principle

As shown in the figure above, the contact Angle measuring instrument is mainly composed of light source, injection unit, sample table, collection system, overall tilt platform and analysis software. The equipment adopts the principle of optical imaging.

The light source adopts the design of dense LED cold light with uniform luminescence, image cleaning and long service life.

The injection unit adopts high precision injection pump, controlled by software quantitative and constant speed, stable drop, high precision;

The sample table adopts 3d manual fine-tuning platform, which is flexible in operation and accurate in positioning. The sample table can be customized according to the actual sample size.

The acquisition system adopts a black-and-white imported CCD camera, which can take stable pictures, make the images clear and reliable. The lens is equipped with German industrial import configuration, with adjustable magnification of 0.7-4.5 times and no distortion in the imaging.

The whole tilting platform adopts software to control tilting with high precision, with the accuracy as high as 0.01°

The analysis software has a powerful function, with one-button automatic fitting ability, with the world’s most advanced fitting method, to meet the precise fitting of various liquid droplet morphology;

4. LR-SDC-350 Automatic Tilt Contact Angle Measuring Instrument
5. Specification

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5. LR-SDC-350 Automatic Tilt Contact Angle Measuring Instrument
6. Accord with national standard

1.GB/T 24368-2009(detection of hydrophobic pollutants on glass surface);

2.SY/ t5153-2007 (reservoir rock wettability measurement method);

3.ASTM D 724-99 (2003) (test method for surface wettability of paper);

4.ASTM d5946-2004 (measurement of contact Angle between plastic film and water);

ISO15989 (measurement of water contact Angle of plastic film and thin plate corona treatment film);

6. Product features
7. The host adopts high-strength aviation aluminum alloy structure and modular design concept, independently developed integrated chip circuit control, adopts the design essence and configuration of the international top imported contact Angle equipment, to ensure the instrument has a strong stability;
8. Industrial grade dense adjustable LED cold light source system (life over 25000H) is adopted to ensure a clearer image and avoid the volatilization of small droplets caused by extra heat;

3.Adopt high-performance Japanese original imported industrial movement,

Industry Stage telecentric zoom zoom lens, basically can achieve no image loss

True situation, ensure the best imaging effect;

4. 0 standard interface, fast data transmission speed, high compatibility

ａnd strong imaging stability;

5. The first domestic company to provide the contact Angle measurement and calibration sample imported from Germany to ensure the precision of the instrument, and the Angle calibration standard piece 3°5°8°;60 ° 90 ° 120 °;115° (optional);
6. Flexible collection system design, suitable for most of the measurement environment, simple to cope with a variety of complex sample surface measurement;
7. Possess the most advanced contact Angle analysis method in the world,

satisfying all kinds of liquid.Accurate fitting of drip imaging, including the

unique differential ellipse of shengding

And differential circle special liquid imaging fitting method;

8. Adopt the international leading calculation method, the software has realized the full automatic fitting to avoid the error caused by human operation;
9. Quick fitting function for bilateral contact Angle measurement and more comprehensive quantitative analysis

Surface wettability of liquids and solids can be analyzed more accurately

Actual wettability;

10. Dynamic shooting and video fast test data, which can continuously record the change of test contact Angle, and then automatically batch fit by the software;
11. Software automatically generates reports, which cover

Word form, Excel form, spectrogram

Various forms of data reports;

12. With a variety of optional functional parts, our r & d team is strong enough to meet various customized measurement requirements put forward by customers;
13. With the function of forward and backward Angle measurement, it is convenient for the most efficient measurement of sample surface stability;
14. Equipped with the rolling Angle measurement function, which can intelligently distinguish the sliding point of material surface and the forward and backward Angle measurement in this way;