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Manual Contact Angle Measuring Instrument

The contact angle meter is used to measure the wettability of liquids on solids. It calculates and determines indicators such as the liquid's adhesion to the solid, surface tension, and surface energy of the solid by measuring the contact angle. This instrument is widely used in petroleum, chemical, pharmaceutical, papermaking, and dye industries for scientific research and educational purposes. The machine uses imported components and employs microcontroller technology to transfer captured images to a computer for storage, analysis, and printing. It is fast, provides accurate data, and is easy to operate.
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Product Applications

1. Measurement of liquid contact angle on solid surfaces (wetting angle/droplet angle);

2. Measurement and analysis of free energy/surface tension of solid surfaces;

3. Wettability characterization, including measurement and analysis of dynamic processes such as liquid spreading/penetration on solid surfaces;

4. Measurement and analysis of printability, adhesion/binder properties of liquids on solid surfaces;

5. Measurement and evaluation of the cleanliness of solid surfaces (after cleaning processes) or the effects of surface treatments (such as plasma treatment);

6. Hydrophobicity of solid surfaces (droplet angle test after solid coating + monitoring in conjunction with abrasion resistance);

7. Advance and retreat angle tests (continuous expansion and contraction of the liquid);

8. Roll-off angle test (tilting the platform to analyze the energy when the solid and liquid are not on a horizontal plane).

Measurement Methods:

1. Sessile Drop Method (Contact Angle/Wetting Angle Test)

2. Pendant Drop Method (Surface/Interfacial Tension Test)

3. Captive Bubble Method (Contact Angle Analysis of Petroleum)

4. Wetted Fiber Method (Testing of Single Fibers)

5. Sessle Fiber Drop Method (Testing of Sheet Fibers)

Contact angle measurement:
Range 0 ~ 180°
Accuracy < 0.1°
Resolution 0.001°
Repeatability 0.001°
Surface/interfacial tension measurement:
Range 0.01 ~ 2000 mN/m
Accuracy < 0.01 (relative to the measured value, when using the pendant drop method)
Resolution 0.01 mN/m or 0.01% (when using the pendant drop method)
Drop Method Software-controlled automatic dripping; accuracy: 0.01ul
Maximum Measurable Sample Size: Up to 12 inches (expandable)
Instrument Dimensions 600mm (L) x 200mm (W) x 540mm (H)
Weight 15KG

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