As is known to all, nanomaterials science and engineering have become the world’s research hotspots. When studying the surface modification of nanomaterials, the concept of wetting contact Angle is often involved.Contact Angle refers to the level of a solid plane drops of a droplet and solid on the surface of the solid – liquid – gas three-phase junction, the gas-liquid interface and the solid-liquid interface two tangent to clamp the liquid phase in the Angle.

The surface can be a measure of the breakdown of chemical bonds between molecules on the surface of the material.In the theory of solid physics, the surface atoms have more energy than the atoms inside the material, and therefore, according to the principle of the lowest energy, the atoms spontaneously tend to the interior rather than the surface.Another definition of surface energy is that the material’s surface is more energy than the interior of the material.

Accord with relevant national standards

GB/T 24368-24368 (glass surface hydrophobic pollutants detection)

SY/T5153-2007 (reservoir rock wettability determination method)

ASTM D 724-99 (2003) (the surface wettability of paper test method)

ASTM D5946-2004 (plastic film and water contact Angle measurement.)

ISO15989 (plastic film and sheet corona processing thin film of water contact Angle measurement)

Instrument parameters

contact Angle measuring range: 0-1800

contact Angle measuring accuracy:±0.10

high precision drip system: differential head + blue core syringe;Drip accuracy 0.2 mu l

contact Angle with high precision instrument calibration tablets: Germany imported from contact Angle calibration standard 3 ° 5 ° 8 ° to 60 °, 90 °, 120 °, 115 ° (optional)

irregular surface contact Angle detection: can measure for irregular surface, (such as concave and convex, surface, etc.)

table interfacial tension measurement range: 0-1000 mn/m;Measurement accuracy: 0.01 mN/m

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