ZL-2823C Standard Type Contact Angle Analyzer

Overview:

Contact angle (Contact angle) is the tangent line of the gas-liquid interface made at the intersection of gas, liquid and solid phases, and the angle θ between this tangent line on the liquid side and the solid-liquid junction line, contact angle measurement is the main method of surface performance testing nowadays.

ZL-2823C standard contact angle measuring instrument adopts the principle of optical imaging to measure the sample surface contact angle, wettability, surface interfacial tension, surface energy and other properties by means of image contour analysis, the equipment is cost-effective, comprehensive, and can meet various conventional measurement needs, and has been widely used in many universities, institutes and enterprises.

Application:

Contact angle measurement is used in a wide range of industries and has become an important instrument for assessing surface properties in areas such as mobile phone manufacturing, glass manufacturing, surface treatment, materials research, chemical and chemical engineering, semiconductor manufacturing, coatings and inks, electronic circuits, textiles and fibres, and medical and biological applications.

1. spreading, penetration, absorption and other wetting behaviour of liquids on solid surfaces, static contact angle measurement by the seat-drop method;
2. forward angle, backward angle, contact angle hysteresis, rolling angle, dynamic contact angle measurements of materials on solid surfaces;
3. continuous real-time study and process recording of absorbing materials, contact angle variation curve analysis with time;
4. contact angle measurements of various special materials, e.g. powders, curved surfaces, superhydrophobic/superhydrophilic samples;
5. contact angle testing of materials submerged in liquids by the attached drop method;
6. suspended drop method for measuring surface interfacial tension and its polar and dispersive components for various liquids;
7. calculation of surface free energy (Surface free energy) of solids and analysis of its polar and dispersive components;

Analysis of the Adhersion of liquids on solid surfaces and assessment of the homogeneity and cleanliness of solid surfaces.

Principle:

As shown above, the contact angle measuring instrument is mainly composed of five major parts: light source, injection unit, sample tables, acquisition system and analysis software, and the equipment adopts the principle of optical imaging.

Light source adopts intensive LED cold light design, uniform luminescence, image cleaning and long life;

Injection unit adopts micro manual knob feed, with stable drops and high precision;

Sample tables adopts three-dimensional manual fine-tuning platform, flexible operation, accurate positioning, and the sample stage can be customized according to the actual sample size

The acquisition system adopts black and white imported CCD camera, with stable shooting, clear and reliable images, and the lens adopts German industrial grade imported configuration, with 0.7-4.5 times magnification adjustable and no distortion of imaging;

The analysis software is powerful, with one-key automatic fitting capability, with the most advanced international fitting method, to meet the accurate fitting of various droplet forms;

Specifications：

Accord Standard:

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

2.SY/T5153-2007 (Determination method of wettability of reservoir rocks);

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)
5. ISO 15989 (Measurement of water contact angle of plastic films and thin corona treated films);

Product Features:

1. the host adopts high-strength aviation aluminum alloy structure with modular design concept, self-developed integrated chip circuit control, adopting the design essence and configuration of the international top imported contact angle equipment to ensure that the instrument has excellent stability;;
2. the use of industrial-grade dense adjustable LED cold light source system (life of 25000H or more) to ensure clearer imaging, while avoiding the volatilization of small liquid droplets caused by additional heat;

3. Adopt high performance Japanese original imported industrial movement, industrial grade continuous zoom microscope, to ensure the authenticity of the image and obtain the best imaging effect;

4. using USB2.0 standard interface, fast data transmission speed, high compatibility, imaging stability;
5. The first one in China to provide the contact angle measurement calibration sample imported from Germany to ensure the accuracy of the instrument, the angle calibration standard piece 3°5°8°; 60°90°120°; 115° (optional)
6. flexible design of the acquisition system, applicable to most of the measurement environment, simple to cope with a variety of complex sample surface measurements;
7. With the world’s most advanced contact angle analysis method, to meet all kinds of liquid

The world’s most advanced contact angle analysis method can meet the accurate fitting of all kinds of liquid droplet imaging, including the unique differential ellipse and differential circle special liquid imaging fitting methods;

8. Using the international leading calculation method, the software has achieved fully automatic fitting to avoid errors caused by human operation;
9. With bilateral contact angle measurement fast fitting function, more comprehensive analysis

Liquid and solid surface wettability, more accurate analysis of the surface actual wetting situation;

10. dynamic filming, video fast test data, which can continuously record the changes in the test contact angle, and then automatically batch fitting by the software;
11. The software automatically generates reports, which cover Word form, Excel form, spectrogram form and other kinds of data reports;