ASTM D 724 Optical ImagingOptical Contact Angle Tester

1. Test standard

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

2.SY/T5153-2007(Method for 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 the contact Angle between plastic film and water)；

5.ISO15989(Measurement of water contact Angle of plastic film and thin plate corona treated film)；

2. Summary

Contact Angle is the tangent line of the gas-liquid interface at the intersection point of gas, liquid and solid. This tangent line has an Angle between the liquid and the solid-liquid boundary. The measurement of contact Angle is the main method for surface performance detection nowadays.

SDC-80 basic contact Angle measuring instrument adopts the principle of optical imaging to measure the surface contact Angle, wettability, surface energy and other properties of the sample by means of image profile analysis. The equipment has high cost performance, comprehensive functions and can meet the requirements of conventional sample surface wettability measurement.

3. Application

Contact Angle measuring instrument is widely used in various industries, in the mobile phone manufacturing, glass manufacturing, surface treatment, material research, chemical and chemical industry, semiconductor manufacturing, paint and ink, electronic circuits, textile fiber, medical biological and other fields, contact Angle measurement has become an important instrument to evaluate the surface performance.

1. Wetting behaviors of liquid on solid surface, such as spreading, infiltration and absorption, etc., static contact Angle was measured by droplet method;

2. Measurement of forward Angle, backward Angle, contact Angle lag, rolling Angle and dynamic contact Angle of materials on solid surface;

3. Continuous real-time research and process recording of absorption materials, and curve analysis of contact Angle changes with time;

4. Measurement of contact Angle of various special materials, such as powder, curved surface, superhydrophobic/superhydrophilic samples;

5. Test the contact Angle of the material immersed in the liquid by adhesive drop method;

6. Measurement of interfacial tension, polarity and dispersion components of various liquid surface by droplet method;

7. Calculate the Surface free energy and analyze its polar dispersion component;

8. Analyze the adherent work of liquid on solid surface to evaluate the uniformity and cleanliness of solid surface.

4. Principle

As shown in the figure above, the contact Angle measuring instrument is mainly composed of five parts: light source, injection unit, sample table, acquisition system and analysis software. The equipment adopts the principle of optical imaging.

Light source adopts dense LED cold light design, uniform light emitting, image cleaning, long life;

The injection unit adopts micro manual knob type liquid injection, with stable drip and high precision;

The sample table adopts 3d manual fine adjustment platform, flexible operation, accurate positioning, the sample table can be customized according to the actual sample size;

The acquisition system adopts the black and white imported CCD camera, which is stable to shoot, with clear and reliable images. The lens is equipped with the German industrial-grade imported configuration, with the magnification adjustable from 0.7 to 4.5 times, and the imaging is free from deformation.

The analysis software has powerful functions, has one-button automatic fitting ability, has the most advanced fitting method in the world, and meets the precise fitting of various droplet forms;

5. Specifications

Dongguan Lonroy Equipment Co., Ltd, located in Dongguan, Guangdong,  is a leading company specializing in the research and development, manufacturing and sales of high-tech and high-precision testing equipment. With 20 years of industry experience, we are committed to providing excellent testing solutions to customers around the world.

Our products include

1.Plastic and Rubber Testing Equipment: Melt Index Tester, Impact Tester

2.Universal Testing Machine and Tensile Testing Machine to detect mechanical properties

3.UV Aging Tester

4.Environmental Testing Equipment: Climate Chamber, Temperature and Humidity Chamber

5.Vibration Test Machine

6.Differential Scanning Calorimeter

7.And other testing instruments such as Ink Proofer, Packaging and Printing Test Machine

Our products are widely used in plastics, rubber, wire and cable, new energy and other industries, serving more than 50 countries around the world.

With annual sales exceeding US$20 million.

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Dongguan Lonroy Equipment Co., Ltd. has repeatedly achieved success in the international market with its   superb technology and high-quality services.

Adhering to the corporate mission of “providing customers with   accurate testing instruments, enhancing product value; creating development opportunities for employees”,we look forward to creating a better future with global partners.