
Product Usage
Contact angle refers to the tangent line of the gas-liquid interface at the intersection of gas, liquid, and solid phases. This tangent line forms the angle θ between the liquid side and the solid-liquid boundary line. Contact angle measurement is currently the main method for surface performance testing.
This contact angle measuring instrument adopts the principle of optical imaging to measure the surface contact angle, wetting performance, interfacial tension, surface energy and other properties of the sample through image contour analysis. The equipment has high cost-effectiveness, comprehensive functions, and can meet various conventional measurement needs. It is currently widely used in many universities, colleges and enterprises.
Contact angle measuring instruments are widely used in various industries, such as mobile phone manufacturing, glass manufacturing, surface treatment, material research, chemical engineering, semiconductor manufacturing, coatings and inks, electronic circuits, textile fibers, medical biology, etc. Contact angle measurement has become an important instrument for evaluating surface performance.
meet the standard
1. GB/T 24368-2009 (Detection of Hydrophobic Contaminants on Glass Surfaces);
2. SY/T5153-2007 (Determination Method for 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. ISO15989 (Measurement of water contact angle of plastic film and thin plate corona treated film).
Product Principle

1. As shown in the figure above, the contact angle measuring instrument mainly consists of five parts: light source, injection unit, sample stage, acquisition system, and analysis software. The equipment adopts the principle of optical imaging.
2. The light source adopts a dense LED cold light design, with uniform light emission, image cleaning, and long lifespan;
3. The injection unit adopts a micro manual knob type liquid inlet, with stable dripping and high accuracy;
4. The sample stage adopts a three-dimensional manual precision adjustment platform, which is flexible in operation and accurate in positioning. The sample stage can be customized according to the actual sample size;
5. The acquisition system adopts a black and white imported CCD camera, with stable shooting, clear images, and reliable authenticity. The lens adopts German industrial grade imported configuration, with adjustable magnification of 0.7-4.5 times, and no distortion or deformation in imaging;
6. The analysis software has powerful functions, with one click fully automatic fitting ability and the most advanced fitting method internationally, meeting the precise fitting of various droplet shapes;
Product Features
1. The mainframe adopts high-strength aviation aluminum alloy structure with modular design concept, independently developed integrated chip circuit control, and adopts the design essence and configuration of international top imported contact angle equipment to ensure that the instrument has extremely strong stability;
2. Adopting an industrial grade dense adjustable LED cold light source system (with a lifespan of over 25000H) to ensure clearer imaging while avoiding the evaporation of small droplets caused by additional heat;
3. Adopting high-performance Japanese imported industrial movement and industrial grade continuous zoom microscope, ensuring the authenticity of images and obtaining the best imaging effect;
4. Adopting USB 2.0 standard interface, it has fast data transmission speed, high compatibility, and strong imaging stability;
5. The first domestic provider of contact angle measurement calibration samples imported from Germany, ensuring the accuracy of the instrument, with angle calibration standard plates at 3 ° 5 ° 8 °; 60°90°120°; 115 ° (optional);
6. The collection system design is flexible and suitable for the vast majority of measurement environments, and can easily handle various complex sample surface measurements;
7. We have the world's most advanced contact angle analysis method, which can accurately fit all types of droplet imaging, including Shengding's unique differential ellipse and differential circle special liquid imaging fitting method;
8. Adopting internationally leading calculation methods, the software has achieved fully automatic fitting to avoid errors caused by human operation;
9. Equipped with fast fitting function for bilateral contact angle measurement, it can comprehensively analyze the surface wetting performance of liquids and solids, and more accurately analyze the actual wetting situation of the surface;
10. Dynamic shooting and rapid video testing data can continuously record changes in test contact angle, which can then be automatically fitted in batches by software;
11. The software automatically generates reports, including various data reports in Word format, Excel format, spectrum format, etc;
12. With a variety of optional functional components, our strong R&D team can meet various customized measurement requirements proposed by customers;




