【Scope of application】:
Contact angle refers to the tangent line of the gas-liquid interface at the intersection of gas, liquid and solid, and the angle θ between the liquid side and the solid-liquid junction line is the main method of surface performance testing today.
WBE-200S research contact angle measuring instrument is the principle of optical imaging, the equipment adopts the image profile analysis method to measure the sample surface contact angle, wetting performance, surface interface tension, forward and backward angle, surface energy and other performances, the equipment adopts a fully automatic liquid inlet device, cost-effective, strong expandability, comprehensive functions, can meet various conventional measurement needs, has been widely used in many universities and enterprises.
[Meet the standard]:
GB/T 24368-2009 (Detection of hydrophobic pollutants on glass surfaces);
SY/T5153-2007 (Determination method of rock wettability of reservoirs);
ASTM D 724-99(2003) (Test method for surface wettability of paper);
ASTM D5946-2004 (Measurement of Angle of Contact Between Plastic Film and Water);
ISO15989 (measurement of water contact angles of plastic films and sheet corona treated films);
【Product Details】:
Application
Contact angle measuring instruments are widely used in various industries, such as mobile phone manufacturing, glass manufacturing, surface treatment, materials research, chemical industry, semiconductor manufacturing, coating inks, electronic circuits, textile fibers, medical biology, etc., contact angle measurement has become an important instrument for evaluating surface properties.
(Some test functions need to be completed by purchasing special accessories)
1. The wetting behavior of liquid on the solid surface such as spreading, penetration, and absorption, and the static contact angle is measured by the seat drop method.
2. Measurement of the forward angle, retreat angle, contact angle hysteresis, rolling angle, and dynamic contact angle of the material on the solid surface;
3. Continuous real-time research and process recording of absorbing materials, and analysis of the curve of contact angle with time;
4. Contact angle measurement of various special materials, such as powders, curved surfaces, superhydrophobic/superhydrophilic samples;
5. Adhesion drop method test The contact angle test of the material immersed in the liquid;
6. The suspension drop method measures the surface tension of various liquids, their polarity and dispersion components.
7. Calculation of surface free energy of solids and analysis of their polar dispersion components;
8. Analyze the adhesion work of liquids on solid surfaces, evaluate the uniformity and cleanliness of solid surfaces, etc.
Accord with national standard
1. GB/T 24368-2009 (Detection of hydrophobic pollutants on glass surfaces);
2.SY/T5153-2007 (method for determining the 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 sheet corona treated film);
【Product Features】:
Principle
As shown in the figure above, the contact angle measuring instrument is mainly composed of five parts: light source, injection unit, sample stage, acquisition system, and analysis software, and the equipment adopts the principle of optical imaging. The light source adopts dense LED cold light design, with uniform luminescence, image cleaning, and long life.
The injection unit adopts high-precision syringe pump infeed, which is controlled by software quantitative and fixed speed, and the drop is stable and the accuracy is up to 0.01 microliters;
The sample stage adopts a three-dimensional manual fine-tuning platform, which is flexible in operation and 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, stable shooting, clear image, real and reliable, the lens adopts German industrial-grade imported configuration, 0.7-4.5 times magnification adjustable, imaging without deformity and distortion;
The analysis software is powerful, with one-click automatic fitting capabilities, and has the world’s leading fitting method to meet the accurate fitting of various droplet morphology.
Product features
1. The main engine adopts high-strength aviation aluminum alloy structure with modular design concept, self-developed integrated chip circuit control, and adopts the design essence and configuration of the world’s top imported contact angle equipment to ensure that the instrument has strong stability.
2. Adopt industrial-grade dense adjustable LED cold light source system (life more than 25000H) to ensure clearer imaging and avoid small droplet volatilization caused by additional heat;
3. The use of high-performance Japanese original imported industrial movement and industrial-grade telecentric zoom zoom lens can basically achieve no image distortion to ensure the best imaging effect;
4. Adopt USB2.0 standard interface, fast data transmission speed, high compatibility, and strong imaging stability;
5. The first in China to provide contact angle measurement calibration samples imported from Germany to ensure the accuracy of the instrument, angle calibration standard sheet 3°5°8°; 60°90°120°； 115° (optional);
6. The acquisition system is designed flexibly, suitable for most measurement environments, and can easily cope with a variety of complex sample surface measurements.
7. It has the world’s most advanced contact angle analysis method to meet the accurate fitting of all kinds of droplet imaging, including Shengding’s unique differential ellipse and differential circle special liquid imaging fitting method.
8. Using the international leading calculation method, the software has achieved fully automatic fitting to avoid errors caused by human operation;
9. It has the function of quick fitting of bilateral contact angle measurement, which can analyze the surface wetting performance of liquids and solids more comprehensively and more accurately.
10. Dynamic shooting and video rapid test data can continuously record the changes of the test contact angle, and then automatically batch fit by the software;
11. The software automatically generates reports, covering various data reports such as Word form, Excel form, spectral form, etc.;
12. It has the function of measuring the angle of forward and backward, which is convenient for the most efficient measurement of the stability of the sample surface;
13. With a variety of optional functional parts, our R&D team can meet various customized measurement requirements put forward by customers;
Optional Accessories
[Technical specifications]:
| Contact angle host |
| Dimensions |
800mm(L)*190mm(W)*640mm(H) |
| weight |
21KG |
| Power supply |
220V / 60HZ |
| Light source system |
| Light source |
Dense LED adjustable blue tone industrial grade cold light source |
| Lifespan |
The service life is more than 25,000 hours |
| Injection unit |
| Syringe |
Special supporting high-precision quartz syringe with a capacity of 500μL |
| Drops |
Software controls automatic liquid feeding with an accuracy of up to 0.01μL |
| The injection unit moves |
up and down 50mm; 50mm left and right |
| Acquisition system |
| CCD |
SONY original imported high-speed industrial-grade chip, 25 frames/s, 130W pixels |
| Lens |
0.7-4.5x high-definition industrial-grade continuous zoom microscope |
| Acquisition system adjustment |
Before and after50mm (3mm trim), the angle of view is adjustable (head-up, overhead, looking up,360° rotation and other multi-perspective observation) |
| Sample stage device |
| Table size |
160mm*200mm |
| Maximum sample size |
6 inches |
| The sample stage moves |
Forward and backward movement Manual, stroke 60mm, accuracy 0.1mm
Left and right movement manual, stroke 35mm, accuracy 0.1mm
Move up and down manually, stroke 80mm, accuracy 0.1mm |
| Analysis software |
| Contact angle measurement range |
0-180° |
| Contact angle measurement accuracy |
±0.1° |
| Measurement range of surface tension |
0-2000mN/m |
| Measurement accuracy of surface interface tension |
0.01 mN/m |
| Analyze software features |
1. The most advanced contact angle measurement and analysis software in China is automatically fitted (one-click automatic fitting,There is no manual error) including: Circle method,elliptical/obliqueellipse is legal（Ellipse/Oblique ellipse）、LY、Differential ellipse/microCircle method（Differential circle / Differential ellipse）；
2、Dynamic contact angle fitting(Batch fitting multiple images) includes: wetting performance test(Wettability), videoContinuousFitCalculation（Video analysis）；
3、 Surface energy calculation;
4、 Tension measurement at the surface interface（Surface tension）；
5、 Forward and backward angle measurement;
6、 Adhesion work; |
