Instruhub

The  3D Topography module combined with the Theta Flex optical tensiometer is the first product which makes it possible to combine 3D surface roughness measurements in conjunction with contact angle measurements and to perform those measurements on the same exact sample location.   As a result, roughness-corrected contact angles can be better compared with each other for research and quality control purposes.

Features & Benefits

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  • Integrated method enabling to define contact angle and surface roughness accurately from the same location and to combine both surface chemical and topographical data with automated software calculations.
  • Offers fast surface characterisation method, which does not demand specialist to run the samples.
  • Versatile roughness measurement: both 2D and 3D characterization.

Applications

Many surface modification and coating technologies that are used for optimizing wetting and adhesion properties influence both surface chemistry and roughness. Understanding the mechanisms that impact wetting by separating these two factors can be a useful tool in product development processes and in quality control. Roughness correction on contact angles also enables the calculation of fundamental surface free energy on rough surfaces. Theta Topography can be used for studying microscale roughness, which is relevant in many applications and processes. Examples include:

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    • Coatings and surface modifications
    • Paper and board wettability
    • Biocompatibility of implants
    • Construction and building material

Wettability is typically studied by a contact angle measurement that can be defined with the well-known Young equation on ideal surfaces. Surface free energy theories are also based on assumptions that Young contact angles are used for calculations. Thus, the surface is assumed to be chemically homogenous and topographically smooth. This is, however, not true in the case of real surfaces. It is well established that surface roughness enhances the existing wetting behaviour and influence on adhesion.

he Surface Analyst™ 5001 is a hand-held non-destructive portable contact angle meters that equip manufacturers with the information they need to reliably predict whether adhesion and cleaning will be successful.

If you bond, paint, seal, coat print or clean, you probably experience problems getting what you apply to reliably stick to your surface.

The Surface Analyst, widely used in the Automotive, Aerospace, Medical Device Manufacturing, Packaging & Electronics industries works in a two second measurement cycle.   A small droplet of water is created on the surface from a pulsed stream of micro drops, with a single button operation the instrument  gives an immediate contact angle calculation or pass/fail indication from the drop diameter.  The results correlate directly to a material’s cleanliness and the potential to form a strong bond with an adhesive or coating.

SA5001 – The Surface Analyst™ 5001 features a flexible tether and a user-friendly Universal Inspection Head with built-in controls for single handed inspection, interchangeable inspection feet, LED lights and audible feedback – eliminating the need to view the device’s screen during a test. The instrument contains embedded software and various add-on features andoptions are available.

• Fast: In less than two seconds you can determine if your parts are ready to bond, paint, seal, coat, print, or are clean.
• Easy: Put the Surface Analyst into production on the factory floor with as little as 15 minutes of training.  The instrument allows users to inspect any material, multi-directional inspections can be performed on parts with complex geometries and the portable device is not tethered to either a computer or a tablet.  Featuring a user friendly Universal Inspection Head with built-in buttons, LED lights and audible feedback so there is no need to view the device’s screen during a test.
• Accurate: A precise, repeatable measurement is delivered to the user; no subjectivity involved.  With a robust software that supplies precise surface analytical data, inspections can be conducted in complex and unpredictable manufacturing environments.
• Non-destructive: The Surface Analyst uses 1.5mL of highly purified water to take a measurement, eliminating the potential for material contamination and making inspections completely harmless to users and the surface being tested.
• Dynamic:  The instrument features advanced image analysis providing contact angle results that accurately represent the droplet’s interaction with the surface.

Theta Topography

Innovative contact angle meter capable of studying surface roughness and adjusting the result accordingly.

Specifications:

Accessories:

Tilting cradle Picoliter Dispenser Measuring chamber, electrically heated, 250° C Pulsating Drop Module - PD200

Theta flex
Contact angle meter for all your measurement needs.
Theta Flex is designed to fit both research and quality control.

 

Specification:

 

 OneAttension Features

• User friendly interface
• Fully automated measurements
• Automatic baseline detection and drop shape fitting
• Batch angle mode
• Meniscus contact angle mode
• Automated liquid purity checkup
• Fully automatic dynamic contact angle mode with the needle method

Theta liteContact angle meter for simple and precise measurements.

Clean and compact instrument with user-friendly design. 

Specifications:

Theta High Pressure:

Convenient and versatile contact angle meter for measuring at high pressures and high temperatures. 

What you can measure:

• Static contact angle 
  Sessile drop and captive bubble
• Dynamic contact angle 
  Dynamic contact angle, advancing and receding contact angle and contact angle hysteresis
• Surface free energy 
  Sessile drop and captive bubble
• Surface- and interfacial tension 
  Pendant drop and reverse pendant drop methods

Specifications:

 

The versatile Theta Flex Optical Tensiometer (also known as a goniometer, contact angle meter & drop shape analyser) allows highly accurate and easy characterisation of both solids and liquids. The instrument offers all measurements in one instrument and is designed for reliable and repeatable measurements of wettability and adhesion, even in the most demanding industrial and research applications.

Theta Flex  is able to perform a complete range of automated or manual measurements which makes it a highly versatile instrument in Research, Industrial and Quality Control laboratories. Measurements include static contact angle with the sessile drop, captive bubble and meniscus methods, dynamic contact angle with the tilted drop and sessile drop methods, surface free energy, surface/interfacial tension with the pendant drop and reverse pendant drop methods, 3D surface roughness with the Fringe projection phase shifting method and interfacial dilatational rheology with the pulsating drop method.

The Theta Flex contact angle meter enables you to choose the level of automation that you require for different applications.  Starting with a basic frame, the versatility of the instrument has a high degree of modularity and an extensive range of accessories that allow you to upgrade or change the instrument as your needs evolve.

The OneAttension software comes with all Theta instruments and combines the most intuitive user interface with a high level of functionality.  Some of its main features include:

• Best-in-class user interface
• Superior analysis accuracy
• Live Analysis
• Full automation
• Flexibility for every need
• Data handling and exporting made easy
• Optimal for industrial & research use

With optional motorised sample stage, motorised vertical movement and a choice of dispensing systems, Theta Flex can function in a fully automated mode, placing drops in predetermined locations on the substrate and measuring the contact angles.

• Fully automatic measurements avoids user variation and saves time.
• Select ready-made experiment recipes or create custom programs for quick and repeatable operations.
• Automatic base line detection and drop shape fitting.
• Contact angle on curved surfaces (circular or near-circular).
• Flexible and programmable frame per second rate recorded by the camera.