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hongjin
Main Measurement Principles/Applications:
Contact angle measuring instruments primarily analyze the surface profiles of liquid and solid samples through optical projection.
The contact angle refers to the angle θ formed at the intersection of the gas, liquid, and solid phases. This angle is currently the best method for determining the wettability of a material surface.
Surface tension refers to the pulling force between any two adjacent parts of a surface, perpendicular to their unit-length boundary.
Interfacial tension refers to the force generated between a liquid and another immiscible liquid.
Surface energy refers to the force between molecules on the surface of an object.
Adhesion work refers to the work required to separate two condensed phases due to the interaction forces between their molecules.
Measurement methods:
Sit-drop method (Contact angle/wetting angle test)
Dangling drop method (Surface/interfacial tension test)
Pollution method (Contact angle analysis of petroleum)
Fiber-coated method (Testing of single fibers)
Fiber sit-drop method (Testing of sheet fibers)
| Equipment Specifications | |
| Overall machine dimensions | 730x380x750mm |
| Weight | Approx. 35KG |
| Power supply | Voltage 220V, Power 60W, Frequency 60HZ |
| Platform dimensions | 180x200x80mm |
| Overall platform tilt | Electric tilting platform |
| Platform tilt angle | 0°--90° |
| Sample dimensions | 300 x∞x70mm |
| Adjustment Range | X-axis manual travel: 80mm, accuracy: 0.1mm |
| Y-axis manual travel: 50mm, accuracy: 0.1mm | |
| Z-axis manual travel: 100mm, accuracy: 0.1mm | |
| Camera | Original imported chip |
| Camera Frame Rate | 300fps (higher frame rate optional) |
| Camera Pixels | 5MP |
| Lens | Telecentric zoom lens |
| Lens Tilt | ±10° accuracy (0.5°) |
| Lighting System | Single-wave cold light source with focusing ring protective cover, lifespan over 60,000 hours |
| Lighting Adjustment | Hardware and software co-control |
| Drip System | Software-controlled automatic drip pump |
| Droplet movement range | X-axis manual adjustment 80mm, accuracy 0.01mm |
| Z-axis manual adjustment 80mm, accuracy 0.01mm | |
| syringe | High-precision quartz syringe, 500ul capacity |
| Software parameters | |
| Contact angle measurement range | 0-180° |
| Contact angle resolution accuracy | 0.001° |
| Interfacial tension range | 0～2000mN/m |
| Surface tension resolution accuracy | 0.01mN/m |
| Dynamic tension | Software reads automatically |
| Surface energy measurement method | OWRK method, Zisman method, EOS method, Fowkes method, Wuwim method, dispersion force, polar force (algorithms and liquid libraries can be added). |
| Adhesion work | One-click automatic analysis |
| Spreading coefficient | One-click automatic analysis |
| Wetting work | One-click automatic analysis |
| Software algorithm | Resolution fitting method, arc surface method, θ/2, tangent method, angle measurement method, width and height method, L-Y method, circle method, ellipse method, oblique ellipse method |
| Analysis method | Seat drop method, fiber method, dynamic wetting method, pendant drop method, inverted pendant drop method, attached drop method, pin method, 3D morphology method, bubble trapping method |
| Analysis mode | Wettability analysis, roll-off angle analysis, static analysis, real-time dynamic analysis, photo analysis, video analysis, forward and backward angle analysis |
| Measurement mode | Fully automatic, semi-automatic, manual |
| Saving mode | Word, EXCEL, spectrum, photo, video |
Main Measurement Principles/Applications:
Contact angle measuring instruments primarily analyze the surface profiles of liquid and solid samples through optical projection.
The contact angle refers to the angle θ formed at the intersection of the gas, liquid, and solid phases. This angle is currently the best method for determining the wettability of a material surface.
Surface tension refers to the pulling force between any two adjacent parts of a surface, perpendicular to their unit-length boundary.
Interfacial tension refers to the force generated between a liquid and another immiscible liquid.
Surface energy refers to the force between molecules on the surface of an object.
Adhesion work refers to the work required to separate two condensed phases due to the interaction forces between their molecules.
Measurement methods:
Sit-drop method (Contact angle/wetting angle test)
Dangling drop method (Surface/interfacial tension test)
Pollution method (Contact angle analysis of petroleum)
Fiber-coated method (Testing of single fibers)
Fiber sit-drop method (Testing of sheet fibers)
| Equipment Specifications | |
| Overall machine dimensions | 730x380x750mm |
| Weight | Approx. 35KG |
| Power supply | Voltage 220V, Power 60W, Frequency 60HZ |
| Platform dimensions | 180x200x80mm |
| Overall platform tilt | Electric tilting platform |
| Platform tilt angle | 0°--90° |
| Sample dimensions | 300 x∞x70mm |
| Adjustment Range | X-axis manual travel: 80mm, accuracy: 0.1mm |
| Y-axis manual travel: 50mm, accuracy: 0.1mm | |
| Z-axis manual travel: 100mm, accuracy: 0.1mm | |
| Camera | Original imported chip |
| Camera Frame Rate | 300fps (higher frame rate optional) |
| Camera Pixels | 5MP |
| Lens | Telecentric zoom lens |
| Lens Tilt | ±10° accuracy (0.5°) |
| Lighting System | Single-wave cold light source with focusing ring protective cover, lifespan over 60,000 hours |
| Lighting Adjustment | Hardware and software co-control |
| Drip System | Software-controlled automatic drip pump |
| Droplet movement range | X-axis manual adjustment 80mm, accuracy 0.01mm |
| Z-axis manual adjustment 80mm, accuracy 0.01mm | |
| syringe | High-precision quartz syringe, 500ul capacity |
| Software parameters | |
| Contact angle measurement range | 0-180° |
| Contact angle resolution accuracy | 0.001° |
| Interfacial tension range | 0～2000mN/m |
| Surface tension resolution accuracy | 0.01mN/m |
| Dynamic tension | Software reads automatically |
| Surface energy measurement method | OWRK method, Zisman method, EOS method, Fowkes method, Wuwim method, dispersion force, polar force (algorithms and liquid libraries can be added). |
| Adhesion work | One-click automatic analysis |
| Spreading coefficient | One-click automatic analysis |
| Wetting work | One-click automatic analysis |
| Software algorithm | Resolution fitting method, arc surface method, θ/2, tangent method, angle measurement method, width and height method, L-Y method, circle method, ellipse method, oblique ellipse method |
| Analysis method | Seat drop method, fiber method, dynamic wetting method, pendant drop method, inverted pendant drop method, attached drop method, pin method, 3D morphology method, bubble trapping method |
| Analysis mode | Wettability analysis, roll-off angle analysis, static analysis, real-time dynamic analysis, photo analysis, video analysis, forward and backward angle analysis |
| Measurement mode | Fully automatic, semi-automatic, manual |
| Saving mode | Word, EXCEL, spectrum, photo, video |
