Introduction: This machine is not only able to use the static drop method to test the static contact angle, the hanging drop method to test the surface/boundary tension of the liquid and the droplet outline size, the surface energy estimation model to estimate the solid surface energy and its distribution, but also to focus on the selected With accessories with various expansion functions, roll-off method, card insertion method, and bubble trapping method can be realized to achieve comprehensive and accurate measurement and analysis of dynamic/static contact angle, contact angle of external phase as immiscible liquid, critical micelle concentration, etc. . Widely used for pro/hydrophobicity analysis of solid surfaces, wettability analysis, cleanliness testing, evaluation of treatment effects, and characterization, analysis, speculation or description such as competition, adhesion, wetting, spreading, absorption, penetration, solubilization And other important interface chemical properties. Features: 1. The whole frame: Based on an open design and modular concept, it is easy for the user to approach the various parts of the instrument during operation, and has good expandability, which can be added as needed After the main frame is professionally designed, it is made of light-weight, high-strength aluminum alloy CNC machining. The surface is sprayed with plastic, the structure is stable, and the appearance is beautiful. It is equipped with a horizontal supporting foot with strong carbon steel bearing capacity, which can be adjusted universally and vertically to ensure the levelness and stability of the whole machine. 2. Mechanical positioning platform: Focusing combination positioning table adopts precise differential head drive and threaded screw drive to achieve focal length positioning and pitch angle adjustment Lifting and translation combined sample stage adopts screw thread drive and scissor lifting principle, which can realize a wide range of movement without generating the slightest shake and tilt 3. Precision sampling system: Using software to set and control, stepper motor drives the injector to add liquid, and the droplet control accuracy is high 4. Optical Imaging System: The camera uses a high-resolution, high-frame-rate progressive scan CMOS digital camera, which is particularly suitable for the measurement and analysis of dynamic processes that change at high speeds The lens adopts a low deformation rate telecentric industrial lens with a large constant optical magnification and an appropriate depth of field of view The backlight adopts a continuously adjustable brightness LED cold light source, which has long service life and even light emission, providing a background lighting condition for clear imaging. Provides various methods such as volume angle method, volume high method, fitting method, automatic method, hanging drop method, insert plate method and bubble trap method 5. Professional analysis software: Add the appropriate option to test the contact angle between the liquid's static/static contact angle and the external phase immiscible liquid on the solid surface The left and right contact angles can be tested and compared separately. The software automatically calculates the average contact angle. With surface correction function for testing contact angles of convex and concave surfaces, spherical surfaces, and rough irregular surfaces The picture can be directly measured without saving, any three-point circle can be used to find the contact angle value, and the contact angle value can also be automatically analyzed. Not only can the liquid surface/boundary tension be measured, but also the droplet's outline size can be calculated, and the critical micelle concentration of the surfactant can also be analyzed. Provides a variety of surface free energy estimation models for polar, non-polar, low energy, high energy, etc. solid surfaces Provides single shooting, interval shooting and continuous shooting in 3 shooting modes to record and analyze changes in contact angle at different time periods Provide video shooting function, can be saved in AVI format for process observation or PPT file production Features such as coordinate display, brightness adjustment, baseline assistance, and fast memory auto-trigger help analyze images accurately and clearly With powerful database management capabilities, saving, printing, raw data query, and re-analysis can be implemented
Introduction: This machine is not only able to use the static drop method to test the static contact angle, the hanging drop method to test the surface/boundary tension of the liquid and the droplet outline size, the surface energy estimation model to estimate the solid surface energy and its distribution, but also to focus on the selected With accessories with various expansion functions, roll-off method, card insertion method, and bubble trapping method can be realized to achieve comprehensive and accurate measurement and analysis of dynamic/static contact angle, contact angle of external phase as immiscible liquid, critical micelle concentration, etc. . Widely used for pro/hydrophobicity analysis of solid surfaces, wettability analysis, cleanliness testing, evaluation of treatment effects, and characterization, analysis, speculation or description such as competition, adhesion, wetting, spreading, absorption, penetration, solubilization And other important interface chemical properties.
