Contact the protractor

Product introduction

As we all know, nanomaterial science and engineering is a global research hotspot become. When studying the surface modification of nanomaterials, the concept of contact angle for wetting often comes up. The so-called contact angle refers to when a liquid droplet falls on a solid horizontal plane, at the three-phase solid-liquid-gas connection point on the solid surface, when the two tangents of the gas-liquid interface and the solid-liquid interface sandwich the liquid phase The formed corner.

Surface energy is a measure of the breaking of chemical bonds between molecules when creating the surface of a substance. In the theory of solid physics, atoms on the surface have more energy than atoms in the material, so according to the principle of the lowest energyg atoms will spontaneously tend to the inside of the material instead of the surface. Another definition of surface energy is the excess energy on the surface of a material relative to the interior of the material.

The tensile force acting between two adjacent parts of the liquid surface perpendicular to the dividing line of their unit length. The formation of surface tension is closely related to the special stress state of molecules in the thin layer of the liquid surface. The existence of surface tension constitutes a series of special phenomena that can be observed in daily life.

Instrument application field

TFT-LCD panel industry: clean glass panel Coating quality measurement; TFT printing circuit, color filter, ITO conductor film and other front coating quality measurement

Printing and plastic industry: surface cleaning and adhesion quality measurement; ink adhesionfood; glue colloid Property compatibility measurement; tightness of dye

Semiconductor industry: measurement of wafer cleanliness; HMDS processing control; CMP research measurement, photoresist and developer research

Research on chemical materials: research on waterproof and hydrophilic materials; surface activity and tension and wetness of detergents; viscosity improvement and adhesion surface energy measurement

IC packaging: substrate surface cleanliness; atomic synthesis Oxidation identification; BGA soldering surface; adhesion measurement of epoxy CCD digital camera, equipped with high resolution double zoom microscope and high brightness LED backlight source system, equipped with three-dimensional sample platform, the working table can move up and down, left and right, front and back, etc. Realize micro- sampling and accurate movement up and down, left and right. At the same time, a workbench with telescopic rod construction has also been designedthrows, which can adapt to the occasions of increasing the material thickness of different users. The frame of the instrument can be adjusted according to the size of the cartridge, expanding the scope of application of the instrument. The software is equipped with a correction function, and the results after multiple tests can be saved in the same report at the same time, which allows users to better manage and control material data. the instrumentThe design is beautiful and generous, the operation is simple, and it meets the needs of users. Suitable for users measuring contact angles in various industries.

Improve quality control requirements:

Opticalcontact protractor : is a simple, fast and sensitive method for measuring the wettability of solid surfaces. And it can indirectly increase the surface energy of solids and the surfacemeasure the tension of liquids. The following is a comparison table of test methods:

Test Methods

Advantages

Disadvantages

OpticalContact Angle Meter

1. The angle of the water drop is measurable and clear

2. Uniformity measurement

3. The error value is small

The cost is slightly higher

Surface dyne test reagent

Low cost

The error is large and the accuracy is affected after multiple tests, so we only know if it passed the standard

Atomic Force Microscope AFM

Extremely fine measurement (atomic surface, nanostructure)

High cost, small imaging, slow speed, easy to damage the probe

Product Features

Adjustable single wavelength industrial grade LED light source; the picture is clearer; the service life can reach more than 15000H. Adopt powerful Japanese original imported motion to get the best image effectto ensure.

Using the USB2.0 standard interface, fast data transfer rate and high compatibility

High-strength aviation aluminum alloy structure, modular design concept, can be configured with a variety of common measurement accessories

The first company in China to provide contact angle measurement calibration samples, imported from Germany to ensure accurate measurement results (optional)

The most professional contact angle analysis method is more suitable for contact angle measurement of different materials

Using the calculation method of the international XX, it can automatically identify the baseline and contour line, without human error

Fully automatic high-speed measurement, and intuitive reading of data results

Surface contact angle analysis module, easier operation, more accurate results

Video rapid test data, cont continuous testingact angle shape changes

Export of multiple data Function, export measurement data with one click experiment report

Instrument parameters

Contact angle measuring instrument Range : 0-1800 

Contact angle measuring instrumentAccuracy: ±0.10

High precision drip system: differential head + syringe with blue core, drip accuracy 0.5 μl

Contact angle high precision instrument calibration sheet: Germany imported contact angle angle calibration standardStandard plate 3°5°8° 60°90°120°115°

Professional contact angle measurement method

Sessile drop method (sessile drop);

Lamella method;

Captive bubble method;

Moisturized fiber;

Sessle fiber drop method (session fiber drop);

Software overview

Diversified contact angle analysis methods: Fully automatic adjustment method (you don\'t need the referenceline cannot be found manually, you need to take points on the arc surface, one-key measurement), semi-automatic adjustment method (you need to manually find the reference line, you do not need to take points on the arc surface, find the reference line, and then pressing Enter to measure), manual level measurement, manual inclination measurement, width and height measurement method (i.e., the method of measuring height, also known as the circle method), three-point five-point fit method, etc.

Diversified software calculation methods:

Circular fit method (under 40 degrees)

Ellipse fit method (40-120 degrees)

Young-Lapalacer fit method (120 degrees or more)

Automatic ellipse adjustment method (one-key automatic, no manual error, and can accurately analyze slightly irregular images (currently the first in China))

Extension of automatic ellipse method:

Differential circle method (used when the image is very irregular, (0-120 degrees , the world\'s first research and development)

Differential ellipse method (used when the image is extremely irregular, (120-180 degrees, the first research and development in the world)

One-button software measurement: [press space bar]--turn on the camera;【Press key 2]--high-precision automatic measurement > Accurate database management: export Excel tabular data, word image data; more intuitive data reports with pictures and texts with unlimited data

Hardware overview

Mainframe dimensions: 360 mm (width) * 550mm (length) * 450mm (height)

Host net weight: 11KG

Work table size: 120mm*150mm

Work table movement: 50mm up and down; 50mm left and right; 30mm front and rear

Maximum size of the trial stage: 10 inches

Injector travel: up and down 100mm; left and right 100mm

Industrial lens movement: front and back 180mm (fine adjustment 3mm)

Industrial lens : 0.7X*- 4.5X high-definition microscope with continuous zoom

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