KRUSS DSA25 S droplet shape analyzer
Product Introduction of KRUSS DSA25S Droplet Shape Analyzer
The DSA25 standard droplet shape analyzer can measure contact angle and surface free energy with high accuracy. It can quickly evaluate surface wettability and is used for detection in cleaning and pre-treatment processes. This instrument can quickly measure the wettability of surfaces, such as for checking the quality of cleaning, pre-treatment, or coating samples.
KRUSS DSA25S droplet shape analyzer product features:
Software controlled injection, precise droplet volume and good repeatability
Optics and algorithms are in the same high-end series, with high measurement accuracy
Surface energy and contact angle are recommended standard features, with balanced functionality
Expandable tilt table, temperature control, multi liquid titration, etc
Compact size, high cost-effectiveness
KRUSS DSA25S droplet shape analyzer measurement method:
Contact angle of liquid droplets on solid surfaces
Measure the contact angle between the bottom of the solid material immersed in the liquid phase and the bubbles
Calculate solid surface energy through contact angle data
Calculate surface tension by calculating the curvature of symmetrical droplets formed on a circular sample base
The forward and backward angles of droplets when rolling off a sloping surface
The contact angle immersed in the liquid of a cylindrical sample pool, typically consisting of fibers
Perform up to 20 consecutive measurements and display the results together
Measure the current setback angle to characterize the de wetting behavior
Measurement results of KRUSS DSA25S droplet shape analyzer:
static contact angle
Forward contact angle and backward contact angle
Contact angle of bubbles in liquid
Measure surface free energy using the following model: Owens Wendt Rabel Kaelble (OWRK), Fowkes, Wu, Zisman, Equation of State
temperature
Application of KRUSS DSA25S droplet shape analyzer:
Quality assurance for activation processes, such as plasma treatment, corona treatment, or flame treatment
Measure the wettability of plastics, glass, ceramics, wood, paper, or metal.
Test the effectiveness of hydrophobic coatings and other coatings
Wetting analysis under temperature control
Practical application of KRUSS DSA25S droplet shape analyzer:
Surface treatment of wood
To optimize the measurement of surface tension and contact angle for wood protection and bonding
Wettability of contact lenses
Contact angle measurement for the development and quality assurance of biocompatible materials
Wetting and coating of textiles
To optimize the measurement of contact angle and surface tension of functional textile coatings
Adhesive with glass
Contact angle and surface tension during glass cleaning and coating
Adhesive with polymer
Contact angle and surface tension measurement: for optimizing plastic coatings
Application of surfactants
Application of Interface Chemical Measurement Method in the Development and Technical Application of Surfactants
Software controlled static and dynamic contact angle titration module
DSA25S can accurately adjust droplet volume through a software controlled titration module, ensuring highly reproducible measurement results, which is crucial for quality control.
With the help of an adjustable quantitative titration module, the forward and backward angles can be accurately measured, and this method can reliably evaluate the uniformity and roughness level of the solid surface.
High imaging quality, reliable droplet shape analysis
The DSA25S is equipped with a high-resolution camera and high-quality zoom lens, which can accurately display the optimal size of droplets. The high-quality images obtained from this can be used for accurate contact angle measurement. Combined with the intelligent image evaluation algorithm of ADVANCE software, the droplet shape analysis of the instrument can provide accurate measurement results.
Software program for precise time control
The ADVANCE software can automatically start the measurement process immediately after dripping, allowing for the recording of raw data without wasting any time. This is particularly important for samples that exhibit time-dependent wetting behavior.
KRUSS DSA25 Comparison Table of Selection for Series Droplet Shape Analyzer (B/S/E)
| DSA25B(Basic manual) | DSA25S(Standard type) | DSA25E(Professional type) |
product positioning | Economic basic type, manual operation | Standard type, software controlled titration | Professional type, double titration+liquid needle |
Titration method | 1 × Manually adjust and add samples | 1 × Software controlled injector | 1 × Software controlled injector+Liquid needle dual pressure titration (standard) |
syringe volume | Glass 500 μ L/1mL per use | Glass 450 μ L/disposable 900 μ L | Glass 2 × 450 μ L/disposable 900 μ L |
Titration resolution | – | 0.1 μL | 0.1 μL |
Titration speed | – | 0.02 ~ 25 μL/s | 0.02 ~ 25 μL/s |
Liquid Needle One Click SFE | ❌ Nothing | ❌ None (optional) | ✅Standard configuration, completed in one second |
software | ADVANCE(Basic module) | ADVANCE(Contact angle+surface free energy+liquid tension) | ADVANCE(Full module) |
contact angle measurement | Static and bubble contact angle | Static/dynamic, forward/backward angle, tilt | Static/Dynamic, Forward/Backward, Tilt, Rolling Angle |
Surface Free Energy (SFE) | ❌ Nothing | ✅ Standard configuration (OWRK, Fowkes, Wu, Zisman, etc.) | ✅ Standard configuration+one click function |
Surface tension (SFT) | Optional (curvature method) | ✅ Standard configuration (hanging drop method) | ✅ Standard configuration (hanging drip/rising drip) |
Adhesive force analysis | ❌ Nothing | Optional | ✅ Standard configuration (adhesion, solid/liquid interfacial tension, spreading coefficient) |
Parallel Double Droplets | ❌ Nothing | ❌ Nothing | ✅ support |
Tilt table (optional) | External, 0-90 °, software controlled | Same left | Same left |
Temperature control options | Liquid/large chamber/Peltier/electric heating | Same left | Same left |
camera | CF04：2300 fps，1920×1200 | Same left | Same Left (Upgradeable to CF10 Expressway) |
lens | Manual focus, 6.5 x zoom | Same left | Same left |
lighting | High power monochrome LED (470nm) | Same left | Same left |
Maximum sample space | 320×∞×165 mm(Width x Depth x Height) | Same left | Same left |
Instrument size | 610×250×430 mm | Same left | Same left |
weight | 10 kg | 10 kg | 10 kg |
power consumption | 40 W | 100 W | 100 W |
Operating Temperature | 10~40°C | Same left | Same left |
Typical Applications | • Wettability testing of basic coatings
Quick testing of hydrophobic coatings
• Teaching demonstration | • Activation quality assurance (plasma/corona)
Wettability of Plastic/Glass/Metal
Surface cleanliness analysis | • Adhesion assessment (coating/adhesive)
• Superhydrophobic/self-cleaning surface
Long term stability of coatings
Temperature controlled wetting analysis |
target audience | Basic quality inspection, incoming material inspection, and small and medium-sized enterprises with limited budgets | Quality assurance, basic research and development, process control | High end R&D, coating/adhesive manufacturers, research institutions |
KRUSS DSA25S droplet shape analyzer product parameters:
project | parameter |
Contact angle range | 0–180° |
resolution | 0.01° |
lighting type | High power monochrome LED |
Syringe/Liquid | Equipped with up to 8 software controlled syringes/liquids |
Please contact customer service for complete parameters |
