【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.
The standard contact angle measuring instrument is based on the principle of optical imaging, measuring the surface contact angle, wetting performance, surface interface tension, surface energy and other properties of the sample through image profile analysis.
【Product Details】:
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);
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; Analyze the adhesion work of liquids on solid surfaces, evaluate the uniformity and cleanliness of solid surfaces, etc.
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 micro manual knob type inlet, which is stable and has high precision.
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 a 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 deformation;
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.
Optional Accessories
【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. Adopt high-performance imported industrial movement from Japan and industrial-grade continuous zoom microscope to ensure the authenticity of the image and obtain 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, and the angle calibration standard sheet is 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 world’s leading calculation method, the software has achieved fully automatic fitting to avoid errors caused by human operation.
9. It has the function of bilateral contact angle measurement and rapid fitting, 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, including various data reports in Word form, Excel form, spectral form, etc.;
12. With a variety of optional functional parts, our R&D team can meet various customized measurement requirements put forward by customers;
[Technical specifications]:
| Contact angle host |
| Dimensions |
550mm(L)*196mm(W)*485mm(H) |
| weight |
11KG |
| 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 |
Dedicated precision syringe with a capacity of 1000μL |
| Drops |
Manual rotary feeding with a drop accuracy of up to 0.2μL |
| The injection unit moves |
up and down 100mm; 100mm 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 |
60mm front and rear, adjustable viewing angle (head-up, top-down, 360° rotation and other multi-perspective observation) |
| Sample stage device |
| Table size |
120mm*150mm |
| 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° |
| 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、 Adhesion work; |
