Description
Contact Angle Meter Summary
The contact angle is the angle θ between the tangent to the gas-liquid interface at the gas-liquid-solid three-phase contact point and the solid-liquid boundary line on the liquid side. Contact angle measurement is one of the main methods for surface property detection today.
– The contact angle meter mainly analyzes the profile of the liquid and the solid sample surface through optical appearance projection.
– The contact angle is the angle θ formed at the gas-liquid-solid three-phase contact point, which is the best method for determining the wettability of material surfaces today.
– Surface tension refers to the tensile force acting between two adjacent parts of a surface, perpendicular to their unit length boundary line.
– Interfacial tension is the force generated by the interaction between a liquid and another immiscible liquid.
– Surface energy refers to the intermolecular forces acting on the surface of an object.
– Adhesion work refers to the work required to separate two different condensed phases when there is an intermolecular interaction force between them.
The contact angle meter, based on high-precision motion control and intelligent image analysis technology, enables rapid measurement of contact angles on sample surfaces to assess wettability, cleanliness, and coating uniformity. The peristaltic pump automatic dropper model, with its high flexibility, is suitable for precise measurement of non-planar, ultra-thin, or flexible samples (such as fabrics, films, cover plates, and tempered glass). It is cost-effective and easy to operate, making it ideal for rapid detection in small and medium-sized laboratories or production lines without the need for complex automation systems.
Contact Angle Meter Application
Contact angle meters are widely used across various industries, including mobile phone manufacturing, glass production, surface treatment, materials research, chemical engineering, semiconductor manufacturing, coatings and inks, electronic circuits, textile fibers, and medical biology. Contact angle measurement has become an essential tool for assessing surface properties in these fields (some testing functions may require the purchase of specific accessories).
1、Wetting behavior of liquids on solid surfaces, such as spreading, penetration, and absorption, measured by the sessile drop method for static contact angles.
2、Measurement of advancing angle, receding angle, contact angle hysteresis, roll-off angle, and dynamic contact angles of materials on solid surfaces.
3、Continuous real-time study and process recording of absorbent materials, with analysis of contact angle variation over time.
4、Measurement of contact angles for various special materials, such as powders, curved surfaces, and superhydrophobic/superhydrophilic samples.
5、Measurement of contact angles for materials immersed in liquids using the captive drop method.
6、Measurement of surface and interfacial tensions of various liquids, as well as their polar and dispersive components, using the pendant drop method.
7、Calculation of solid surface free energy and analysis of its polar and dispersive components.
8、Analysis of adhesion work of liquids on solid surfaces to evaluate surface uniformity and cleanliness.
Contact Angle Meter Specifications
| Contact Angle Meter Overall Parameters | |
| Dimensions | 540mm×480mm×200mm |
| Weight | Approximately 10KG |
| Power Supply | AC：100-240V |
| Power Consumption | 30W |
| Frequency | 50/60HZ |
| Sample Stage Dimensions | 180mm×180mm |
| Sample Size | 200×200×30mm |
| Adjustment Range | X-axis (Front-Back Adjustment): Manual, Travel 80mm, Precision 0.1mm
Y-axis (Left-Right Adjustment): Manual, Travel 50mm, Precision 0.1mm Z-axis (Up-Down Adjustment): Manual, Travel 80mm, Precision 0.1mm |
| Light Source System | |
| Light Source | Industrial-grade monochromatic cold light source with a focusing ring and protective cover, lifespan over 60,000 hours |
| Wavelength | 460nm |
| Light Source Adjustment | Controlled by both software and hardware, with infinite speed adjustment |
| Injection System | |
| Droplet Method | Peristaltic pump automatic droplet |
| Droplet Movement Range | X-axis (Left-Right Adjustment): 100mm, Precision 0.1mm Y-axis (Up-Down Adjustment): 100mm, Precision 0.1mm |
| Control Method | Software intelligent dynamic liquid control |
| Droplet Precision | 0.1μl |
| Syringe | Micro-volume loader |
| Volume | 1L |
| Needle Sizes | 0.51mm and 0.24mm (standard configuration) |
Accord with National Standards
1. GB/T 36086-2018 Nanotechnology – Dynamic Pressure Method for Nanopowders
2. GB/T 24368-2009 Detection of Hydrophobic Contaminants on Glass Surfaces
3. GB/T 30447-2013 Measurement Method of Contact Angle for Nano Films
4. ISO 19403-2:2017 Paints and Varnishes – Hydrophilicity
5. ASTM D7334-08(2022) Standard Test Method for Surface Wettability of Coatings, Substrates, and Pigments by Advancing Contact Angle Measurement
6. ASTM D5946-17 Standard Test Method for Measuring the Surface Wettability of Corona-Treated Polymer Films by Water Contact Angle
7. ASTM D7334-08(2013) Standard Test Method for Surface Wettability of Coatings, Substrates, and Pigments
8. SY/T 5153-2007 Method for Determining the Wettability of Reservoir Rocks
9. ISO/TS 14778:2021 Paper and Board – Measurement of Water Contact Angle by Optical Method
10. ASTM D5946-2004 Measurement of Contact Angle of Plastic Films with Water
11. ISO 15989 Measurement of Water Contact Angle of Corona-Treated Plastic Films and Sheets
12. EN 828:2013 Adhesives – Measurement of Contact Angle and Surface Free Energy for Determining Surface Wettability
13. KS L ISO 27448:2011(2021) Fine Ceramics (Advanced Ceramics, Advanced Technical Ceramics) – Test Method for Self-Cleaning Performance of Semiconductor Photocatalytic Materials
