SGC-QH6 automatic droplet angle contact angle measuring instrument (dynamic overall tilt type forward contact angle, backward contact angle, and rolling angle) 1. Host picture: 2. Function overview: In addition to using the stop drop method to test static contact angle, this machine focuses more on using the tilt plate method to test and analyze dynamic contact angle (including forward contact angle, backward contact angle, and rolling angle); At the same time, it can also test the surface tension of liquids, estimate the surface energy of solids, and analyze wettability
SGC-QH6 automatic droplet angle contact angle measuring instrument
(Dynamic overall tilt type forward contact angle, backward contact angle, and rolling angle)
1、 Host image:

2、 Function Overview:
In addition to using the stop drop method to test static contact angle, this machine focuses more on using the inclined plate method to test and analyze dynamic contact angle
(including forward contact angle, backward contact angle, and rolling angle); It can also test the surface tension of liquids and estimate solids
Surface energy and analytical wettability. Widely used in biochemistry, nanotechnology, coating processes, water-resistant materials, science and education
Testing and research in various fields.
3、 Technical indicators:
technology project |
Functional indicators |
1. Measurement of dynamic/static contact angle |
1-1. Analysis algorithms: height measurement method, angle measurement method, circular ring method, ellipse method, fitting method, Y-L method
1-2. It has the function of testing and comparing the left contact angle, right contact angle, and average contact angle separately
1-3. It has special surface analysis functions such as concave, convex, curved, superhydrophilic, superhydrophobic, etc
1-4. Analysis function with irregular and non axisymmetric intrinsic contact angle
1-5. Analysis function with forward contact angle, backward contact angle, and rolling angle
1-6. Batch testing function with automatic analysis of contact angle change process
|
|
1-7. Measurement range: 0 ° to 180 °
1-8. Measurement accuracy: ± 0.1 °
1-9. Provide calibration blocks to calibrate measurement accuracy at any time
1-10. Measurement resolution: 0.001 °
|
2. Surface/Interface Tension Measurement |
2-1. Analysis algorithms: manual method, automatic method
2-2. Measurement range: 0.01~1000mN/m
2-3. Measurement accuracy: ± 0.1%
2-4. Measurement resolution: 0.001mN/m
|
3. Estimation of surface energy |
3-1. Estimation models: Fowkes, Extended Fowkes, Owens Wendt, van OSS
Wu harmonic mean method, equation of state method
3-2. Solid surface energy, dispersion force, polarity force, hydrogen bonding force, van der Waals component can be obtained separately
Lewis acid content, Lewis base content, etc
|
|
3-3. Liquid database: pre-set surface tension and component data for 37 commonly used liquids,
The data can be directly imported for surface energy estimation
3-4. Liquid storage data can be added, deleted, and modified by oneself
|
4. Wettability analysis |
4-1. The wetting degree of a solid can be analyzed by the surface tension of the liquid and the contact angle with the solid,
Including adhesion work, spreading coefficient, and adhesion tension
|
5. Data management |
5-1. Save test information, test data, and images through test templates
5-2. The newly created test template can be repeatedly imported and used after being saved
5-3. The experimental data can be modified, deleted, and imported for reanalysis
5-4. The experimental data can be annotated on the image and saved together with the image
5-5. The test results can be exported to Word, Excel, and PDF
|
6. Image capture |
6-1. Single shot, continuous shot, video recording, and image playback
6-2. Optional use of camera external view function for automatic shooting
|
7. Optical imaging system |
7-1. Camera: 3 million pixels, frame rate of 36 frames per second
7-2. Lens: 0.6~4.0 x continuous zoom, focusing distance 82mm
7-3. Focusing range: ± 12.5mm; Focusing accuracy: 0.25mm
7-4. During focusing, the software automatically detects the clarity and eliminates human error
7-5. Horizontal and pitch adjustment range: ± 2 °
7-6. Backlight source: LED cold light source+shading plate, infinite brightness adjustment
|
8. Drip system |
8-1. Dropping method: Software controlled sampler for automatic dripping and automatic lifting
8-2. Droplet volume: 0.1 μ l/drop
8-3. Dropping accuracy: ± 0.05 μ l
|
9. Tilt the sample stage |
9-1. Table size: X100 × Y90mm
9-2. Travel distance: X50 × Y50 × Z50mm
9-3. Movement mode: Manual knob control for 3D movement positioning
|
|
9-4. Tilt Method: The software controls the coaxial overall tilt of the sample stage, imaging system, and droplet system
9-5. During the tilting process, the droplet remains at the center of the window without the need for manual adjustment of the sample stage position
9-6. Tilt range: 0 ° to ± 90 °
9-7. Tilt accuracy: ± 0.01 °
|
10. Host parameters |
10-1. Size: Approximately W585 × D280 × H650mm
10-2. Weight: Approximately 25kg
10-3. Power supply: 1 × AC220V 50HZ
|
Test interface:

5、 3-second continuous shooting of images:

6、 Single test chart
7、 Random attachments:
Controller: 1 set
Light source controller: 1 set
100 μ l and 50 μ l microinjectors: 1 each
Contact angle calibration block (for instrument calibration): 1 block
Mobile USB flash drive (including measurement software installation package): 1 unit
Horizontal ruler: 1 piece
Tool: 1 set
Dust cover: 1 piece
A set of computer
8: Optional accessories
Computer (purchased separately): yuan/unit
Brand: Lenovo Type: Commercial all-in-one computer
System: Windows 10 (genuine) Screen size: 19.5 inches
Graphics card: Integrated graphics card processor: AMD dual core
Memory: 4GB Hard drive: 500GB
Micro injector (additional purchase): yuan/piece
Selection of 10 μ l, 50 μ l, 100 μ l, and 250 μ l
Special microsampler (purchased separately): yuan/set
Used for adding samples to liquids that are frequently changing, difficult to clean, viscous, or corrosive
Can also be used for testing superhydrophobic surfaces
Including Ruhr glass injectors and disposable plastic injectors,
And plastic needles, stainless steel needles, polytetrafluoroethylene needles, etc
Fixture (purchased separately): yuan/set
Used for auxiliary testing of samples such as fibers, fabrics, films, paper, plant leaves, etc
Room temperature to 100 ℃ temperature controlled sample chamber (purchased separately): yuan/set
Room temperature to 200 ℃ temperature controlled sample chamber (purchased separately): yuan/set
-30-100 ℃ temperature controlled sample chamber (purchased separately): yuan/set
Used for sample testing that requires control of ambient temperature, including sample chambers, thermostats
Low temperature constant temperature bath (specially equipped below room temperature) and high temperature gloves, etc
Temperature fluctuation: 1%
Temperature resolution: 0.1 ℃
Sample size: W80 × D90 × H20mm
Bubble trapping method accessories (purchased separately): yuan/set
Used for testing liquid-liquid solid contact angle and liquid-liquid interfacial tension
Including sample slots, Ruhr injectors, replaceable straight and curved needles
Tablet preparation device (purchased separately): yuan/set
Used for compression molding of powder samples
Including tablet press, tablet mold (diameter Ø 13mm, thickness 0.1-0.5mm)
60 frame, 3-megapixel industrial camera (upgraded): yuan/unit
100 frames per second, 3-megapixel industrial camera (upgraded): yuan/unit
200 frames per second, 3-megapixel industrial camera (upgraded): yuan/unit
Replace the original camera to improve camera performance for high-speed continuous shooting
Note: To achieve the desired continuous shooting effect, the computer needs to be equipped with a solid-state drive