Introduction to Standard Water Drop Angle Measuring Instrument:

The so-called contact angle refers to the angle formed when a liquid droplet is dropped on a horizontal plane of a solid, and the gas-liquid interface and the two tangent lines of the solid-liquid interface sandwich the liquid phase at the boundary point of the solid liquid gas three-phase on the surface of the solid. Surface energy is a measure of the chemical bond breaking between molecules when creating a material surface. In solid-state physics theory, surface atoms have more energy than atoms inside a substance. Therefore, according to the principle of energy * low, atoms will spontaneously tend towards the interior of the substance rather than the surface. Another definition of surface energy is the excess energy on the surface of a material relative to its interior.

The tensile force exerted by the interaction between any two adjacent parts of a liquid surface perpendicular to their unit length boundary. The formation of surface tension is closely related to the special stress state of molecules located within a thin layer of liquid surface. The existence of surface tension forms a series of special phenomena that can be observed in daily life.

Application direction of standard water droplet angle measuring instrument:

New surface characterization, surface purity testing, evaluation of solid surface treatment, liquid formulation design, surface cleanliness analysis, plasma cleaning effect analysis, study of adhesion characteristics between solid and liquid or solid, characterization of surface printing performance, study of surface wettability of glass (including solid plastics or metals), analysis of surface modification, etc

Application fields of standard water droplet angle measuring instrument

Can be used for basic research, application of new methods, product design, and quality control in the following fields.

S TFT-LCD panel industry: measurement of glass panel cleanliness and coating quality; Quality measurement of pre coating for TFT printed circuits, color filters, ITO conductive film, etc; Measurement of hydrophilicity of masks in the semiconductor, flat panel display, and optical industries

S Printing and Plastic Industry: Surface Cleaning and Adhesion Quality Measurement; Ink adhesion measurement; Catalyst measurement; Compatibility measurement of adhesive colloidal properties; Tightness of dye

S semiconductor industry: cleanliness measurement of wafers; HMDS processing control; Research on CMP measurement, photoresist and developer

Research on S Chemical Materials: Exploration of Waterproof and Hydrophilic Materials Research; Surface activity and the tension and wettability of cleaning agents; Viscosity enhancement and measurement of adhesion surface energy

S IC packaging: substrate surface cleanliness; Atomic synthesis oxidation recognition; BGA soldering surface; Measurement of adhesion of epoxides

Analysis of the water absorption and printability properties of materials such as paper, diapers, sanitary pads, etc;

Development of new functions, surface properties, printing and dyeing properties of S fibers, fabrics, carbon fibers, glass fibers and resins;

S LCD screen, hard drive, screen protector, touch screen LCD、LED、 Optical components, semiconductor chips Wafer、 Surface cleanliness analysis and quality control in industries such as microelectronics, research on new material development, and evaluation of surface treatment effects such as plasma treatment;

Analysis of surface modification, surface modification, and printing properties of S polymers, polymer materials, and metal materials;

Analysis of new material development and printability for S films, polarizers, films, and photosensitive materials;

Research and application analysis of S biomaterials and biomimetic materials, such as detection and characterization of proteins, pulmonary surfactants, characterization of wetting and adhesion properties of biocompatible materials (polymer materials), competition, and adhesion of proteins.

S Food industry, pharmaceuticals: analysis of wetting and adsorption properties of artificial bones, contact lenses, and eyeglass glass;

Research and wettability analysis of S superhydrophobic and superhydrophilic materials;

Wettability analysis of hydrophilic aluminum foil, insulators, rock cores, coal mines, asphalt for S air conditioning, and research and development of new materials;

S electro wetting contact angle conversion, electric lens research, etc;

S surfactant application research, such as cosmetics, detergents, lotion, petroleum industry (tertiary oil recovery), etc;

S Formula design and wettability analysis for spray, pesticide, paint, ink, ink and coating industries;

S University laboratory research and development, projects, studies, etc;

Requirements for improving quality control

Optical contact angle measuring instrument: It is a simple, fast, and sensitive method for measuring the wettability of solid surfaces. And it can indirectly measure the surface energy of solids and the surface tension of liquids

Product Features

S professional level high-precision droplet system, differential head control, droplet control accuracy can reach 0.1 μ l

S industrial grade adjustable LED cold light source system (with a lifespan of over 20000H), providing clearer imaging while avoiding the evaporation of small droplets caused by additional heat

S adopts high-performance Japanese imported industrial movement and distortion free telecentric lens, ensuring the best imaging effect.

S adopts USB 2.0 standard interface, with fast data transmission speed and high compatibility

S high-strength aviation aluminum alloy structure, modular design concept, can be configured with various commonly used measurement accessories

S independently developed integrated chip circuit control ensures that the instrument operates in the best possible state

Multiple auxiliary modules are selected to meet more external testing conditions

S optical system top method, suitable for ultra-low angle measurement and hydrophobic material measurement

Multiple contact angle analysis methods are more suitable for measuring contact angles of various materials

S adopts internationally superior calculation methods, which can automatically identify reference lines and contour lines without human error

S high-speed fully automatic operation measurement, and intuitive reading of data results

S surface contact angle analysis module, simpler operation, more accurate results

S-video rapid testing data, capable of continuously testing changes in contact angle morphology

One click software operation: [Press the spacebar] - Open the camera; 【 Press key 1 】 - Accurately control the droplet; Press the 2 keys to perform high-precision fully automatic measurement

S German imported calibration plates: C-60 °, C-90 °, C-120 ° (optional)

instrument parameters

Measurement range of S contact angle: 0-180 degrees

S Contact Angle Resolution Accuracy: ± 0.001 °

Measurement accuracy of S contact angle: ± 10

Surface energy calculation: Fowks method, OWRK method, ZismanPlot method, EOS method (partially pre installed liquid database in the software, liquid performance parameters can be established by oneself)

S high-precision manual drip system: high-precision industrial micro injection pump; Dropping accuracy: 0 1μl

Software Overview

Diversified analysis methods for S contact angle: fully automatic fitting method, semi-automatic fitting method, manual horizontal measurement, manual slope measurement, width and height measurement method, manual tangent method, etc., forward/backward angle, rolling angle (tilt angle)

S diversified software calculation method: width and height measurement (0-10 degrees); Circular fitting method (below 40 degrees); Elliptical fitting method (40-120 degrees); Young Lapalacer is proposed to be legal (above 120 degrees)

Accurate surface free energy calculation: Fowks method, OWRK method, ZismanPlot method, EOS method (partially pre installed liquid database in the software, can establish liquid performance parameters by oneself)

One click software measurement operation: [Press the spacebar] - Open the camera; 【 Spin 1 】 - Precise Dripping of Micro Injector; 【 Press 2 keys 】 -- High precision automatic measurement

S Irregular Product Testing Expansion: Concave and Convex Surface Testing, Curved Surface Testing, Rolling Angle Testing, Forward and Backward Angle Testing, High and Low Temperature Contact Angle Testing

S high-speed photography method: single/continuous/video recording; Record any movie and export it as a single sheet; Video recording can automatically and quickly measure (dynamic contact angle)

Refined database management: export Excel spreadsheet data, Word image data; More intuitive unlimited data report with graphics and text

Hardware Overview

S host dimensions: approximately 600mm (length) * 300mm (width) * 420mm (height)

Net weight of S host: 18KG

S worktable size: 120mm * 150mm

S workbench movement: left and right 50mm; front and rear 30mm

S * Sample table size: 10 inches

S sampler movement: up and down 150mm;

S injection system: manual: micro head controls micro injection, accuracy: 0.1ul

S industrial lens: 0.7X * -4.5X high-definition telecentric continuous zoom microscope

S CCD: SONY imported high-speed industrial grade chips with original packaging; Standard configuration: 25 frames per second, optional: 60 frames per second, 300 frames per second, 1000 frames per second

S light source: LED adjustable blue tone industrial grade cold light source; Service life of over 20000 hours

S power supply and power: 220V/60HZ

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