Mô tả ngắn
Hãng sản xuất: Kruss
From one-click wettability measurement to analysis of solid-liquid adhesion
In its Expert configuration, the DSA25 Drop Shape Analyzer is designed for determining the wettability of solids by means of the contact angle as well as the surface tension of liquids such as coating substances or adhesives. Thanks to the combination of speed and versatile evaluation options, the analyses give quick feedback to pretreatment steps in quality control but also allow assessing the resulting adhesion.
HỖ TRỢ NHANH
THÔNG TIN SẢN PHẨM
- Specifications
- Applications
- Measuring Methods
- Measuring Results
INSTRUMENT DIMENSIONS
| Footprint | 610 mm × 250 mm (W × D) |
|---|---|
| Height | 430 mm |
| Weight (without accessories) | 10 kg |
TEMPERATURE MEASUREMENT
| Range of temperature measurement | -50 to 400 °C |
|---|---|
| Resolution | 0.1 °C |
| Precision | 0.1 °C |
| Accuracy | 1/3 DIN B (±0.1 °C at 0 °C to ±0.8 °C at 400 °C) |
| Location of temperature measurement | sample stage chamber cuvette |
| External sensor | 2 connectors (PT100) |
POWER SUPPLY
| Voltage | 88 to 264 VAC |
|---|---|
| Power consumption | 100 W |
| Frequency | 50 to 60 Hz |
SAMPLE DIMENSIONS
| Maximum sample size | 320 mm × ∞ × 165 mm (W × D × H) (without z-axes) |
|---|---|
| Maximum measuring surface | – |
ENVIRONMENT
| Operating temperature | 10 to 40 °C |
|---|---|
| Humidity | without condensation |
TEMPERATURE CONTROL
| Equipment | temperature-controlled sample stage chambers cuvette |
|---|---|
| Type of temperature control | liquid electrical Peltier |
| Range of temperature control | -30 (with Tempering Chamber – TC40) to 400 °C (with Tempering Chamber – TC21) |
| Maximum sample space | 132 mm × 132 mm × 27 mm (W × D × H) (with Tempering Chamber – TC11) |
| Resolution | 0.1 K |
| Flow-through thermostat | with liquid |
| Inert gas | yes |
INTERFACES
| PC | USB 3.0 |
|---|
HOUSING AND PERIPHERALS
| Compartment | – |
|---|---|
| Needle protection shield | – |
| Camera und optics housing | – |
| Control keyboard | PC keyboard for ADVANCE software operation available (KB20) |
| Levelling | yes |
SOFTWARE
| Software type | ADVANCE |
|---|---|
| Available software modules | contact angle surface free energy of solids interfacial and surface tension of liquids Adhesion Analysis Remote Control API |
SURFACE FREE ENERGY OF SOLIDS
| Available | included |
|---|---|
| Results | surface free energy (SFE) |
| Models | equation of state Zisman Fowkes Wu Owens-Wendt-Rabel-Kaelble Schultz-1 extended Fowkes acid-base theory |
CAPTIVE BUBBLE
| Available | included |
|---|---|
| Results | contact angle (CA) |
| Range | 0 to 180° (software-based) |
| Resolution | 0.01° (software-based) |
| Accuracy | 0.1° (instrument-based) |
| Models | conic section polynom circle Young-Laplace height-width |
| Type | advancing receding static dynamic tilting (additional accessories may be required) |
SESSILE DROP
| Available | included |
|---|---|
| Results | contact angle (CA) |
| Range | 0 to 180° (software-based) |
| Resolution | 0.01° (software-based) |
| Accuracy | 0.1° (instrument-based) |
| Models | conic section polynom circle Young-Laplace height-width |
| Type | advancing receding static dynamic tilting (additional accessories may be required) |
PENDANT DROP/RISING DROP
| Available | included |
|---|---|
| Results | interfacial tension (IFT)/surface tension (SFT) |
| Range | 0.01 to 2000 mN/m (software-based) |
| Resolution | 0.01 mN/m (software-based) |
| Models | Young-Laplace |
| Types (Pendant drop/Rising drop) | static, dynamic |
CAMERA SYSTEM (STANDARD)
| Type | Camera CF04 |
|---|---|
| Connection | USB 3.0 |
| Resolution | 1920 × 1200 px |
| Frame rate | 2300 fps |
| Dark noise | 7 electrons |
| Dynamic range | 73 dB |
ILLUMINATION
| Type | high power monochromatic LED |
|---|---|
| Wave length, dominant | 470 nm |
| Field of light | Ø 42 mm |
OPTICS (STANDARD)
| Focus | manual |
|---|---|
| Zoom | 6.5× zoom, manual |
| View angle | ±3° |
| Field of view | CF04: 3.2 mm × 3.2 mm to 18.5 mm × 18.5 mm |
| Resolution of optics | CF04: 2.5 to 16.2 μm |
CAMERA SYSTEM (OPTIONAL)
| Type | High Speed Camera CF06 |
|---|---|
| Connection | USB 3.0 |
| Resolution | 640 × 480 px |
| Frame rate | 3400 fps |
| Dark noise | 10.5 electrons |
| Dynamic range | 56.6 dB |
DOSING SYSTEM
| Dosing | 1x software-controlled 1x Double pressure dosing system |
|---|---|
| Drop deposition | manual |
| Cartridge/syringe (volume) | glass (450 μL), disposable (900 μL) |
| Resolution | 0.1 μL |
| Speed | 0.02 to 25 µL/s |
STAGES
| Control | z-axis: manual (movable in x- and y-direction) |
|---|---|
| Range | – |
| Length | z-axis: 45 mm |
| Resolution | – |
| Accuracy | – |
OPTICS (OPTIONAL)
| Focus | manual |
|---|---|
| Zoom | 6.5× zoom, manual |
| View angle | ±3° |
| Field of view | CF06: 1.4 mm × 1 mm to 8.1 mm × 6 mm |
| Resolution of optics | CF06: 2.1 to 13.3 μm |
DOUBLE PRESSURE DOSING SYSTEM (OPTIONAL)
| Drop deposition | – |
|---|---|
| Cartridge, volume | – |
| Resolution | – |
| Speed | – |
TILTING (OPTIONAL)
| Types | external tilting table |
|---|---|
| Control | software-controlled |
| Range | 0 to 90° |
| Resolution | 0.01° |
| Accuracy | 0.5° |
DOUBLE PRESSURE DOSING SYSTEM
| Drop deposition | software-controlled |
|---|---|
| Cartridge, volume | disposable (1 mL) |
| Resolution | 0.1 μL |
| Speed | fixed |
- Quality assurance of activation processes such as plasma treatment, flame treatment, or corona treatment
- Checking wettability of plastics, glass, ceramics, wood, paper, or metal
- Testing the effectiveness of hydrophobic coatings and other coatings
- Analyzing coating liquids and adhesives and assessing their adhesion
- Assessing long-term stability of coatings
- Analyzing (super-) hydrophobic and self-cleaning surfaces
- Wetting analysis at controlled temperature and/or humidity
- Contact angle of a drop on a solid surface
- Contact angles of two drops dosed in parallel
- Contact angle using a gas bubble beneath a solid surface in a liquid
- Roll-off behavior and advancing/receding contact angle of a drop on a tilted surface
- Surface free energy of a solid using contact angle data
- Surface or interfacial tension using the curvature of a drop or bubble at the tip of a needle
- Surface tension using the curvature of a perfectly symmetrical drop on a circular sample pedestal
- Calculating adhesion-related scientific parameters for the interfacial contact
- Calculating the polar and disperse part of the surface tension from contact angle and surface tension data
- Carrying out a measurement up to 20 consecutive times and displaying the results together
- Static contact angle
- Advancing and receding contact angle
- Contact angle using a bubble in a liquid
- Roll-off angle
- Surface free energy (SFE) according to the following models: Owens-Wendt-Rabel-Kaelble (OWRK), Fowkes, Wu, Zisman, Equation of State
- Surface tension of a liquid and interfacial tension between two liquids
- Work of adhesion, solid/liquid interfacial tension, spreading coefficient
- Temperature
