Contact Angle Goniometer

Product Introduction

Contact angle refers to the tangent line at the intersection of gas, liquid and solid at the gas-liquid interface, and the angle between the liquid side and the solid-liquid junction.

The automatic contact goniometer is a method that uses the appearance image analysis (shape image analysis) method to measure the surface contact angle, wetting energy, surface interface tension, surface energy, rolling (sliding angle), front and back angle and hysteresis, multi-point automatic intelligent contact angle measurement and other performances. The equipment is highly automated and can be installed with an automatic assembly line.

Application

Contact angle goniometers are widely used in various industries, such as mobile phone manufacturing, glass manufacturing, surface treatment, etc., and have become used in the fields of surface performance, material research, chemical manufacturing, semiconductor manufacturing, coating ink, electronic circuits, textile fibers, medicine and biology.

(Some test functions require the purchase of special accessories)

1. Measure the wetting behavior of liquid diffusion, penetration and absorption on the solid surface by the seating method, as well as the static contact angle;

2. Measure the forward, backward, contact, backward, rolling and dynamic contact angles of the material on a solid surface;

3. Continuous real-time research and process recording of absorbing materials, and curve analysis of contact angle over time;

4. Contact angle measurement of various special materials, such as powder, curved surface, superhydrophobic/superhydrophilic samples;

5. Accessory droplet test The contact angle test of the material immersed in the liquid;

6. Measure the interfacial tension and polarity and dispersion composition of various liquid surfaces by the suspension droplet method;

7. Calculate the free energy of the solid surface (surface free energy) and its polar dispersion components;

8. The adhesion work (adhesion) of the liquid on the solid surface was analyzed to evaluate the uniformity, cleanliness, etc. of the solid surface.

Standards

1. GB/T 24368-2009 (Detection of hydrophobic contaminants on glass surfaces);

2. SY/T5153-2007 (Determination of wettability of reservoir rocks);

3. ASTM D 724-99 (2003) (Test method for wettability of paper surfaces);

4. ASTM D5946-2004 (Measurement of water contact angle of plastic films);

5. ISO 15989 (Measurement of water contact angle of plastic films and sheet corona-treated films);

Features

The contact angle meter is mainly composed of a light source, an injection unit, a sample stage, an acquisition system and analysis software. The device adopts the principle of optical imaging.

The light source adopts dense LED cold light design, with uniform luminescence, image cleaning, and long life.

The injection unit uses a high-precision syringe pump to inject, which is quantified by software and controlled by the speed. Droplet stability and high precision. Injection unit automatic lifting connection;

The sample platform adopts 3D automatic displacement device and full software control to realize automatic fixed-point positioning and measurement, and different test schemes can be set according to different products.

The acquisition system adopts black and white imported CCD camera, stable shooting, clear image, real and reliable, the lens adopts the imported configuration of German industrial telecentric zoom multiplication, 0.7-4.5x magnification adjustable 3mm fine adjustment, imaging without deformity and distortion;

The analysis software is powerful, with one-click automatic fitting capability, and has an internationally leading fitting method to meet the accurate fitting of various droplet morphology.

Technical Data