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< 1 minute read

Single Fluid Contact Angle Measurements Make Process Control Easier

Polar interactions between a properly prepared surface and an ink, adhesive, or coating are strong and are responsible for most of the required adhesion of inks, paints, and ...

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1 minute read

Utilizing Water Contact Angle Measurements to Predict Surface Preparedness for Dye Penetrant Application

Reliably predicting dye penetrant wettability for fluorescent crack inspections hinges on understanding surface cleanliness prior to penetrant application.

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2 minute read

Rapid Development of Surface Treatment Processes for Bonding Dissimilar Materials

A recent concept in automotive light-weighting is that of the ‘joining of dissimilar materials.’ The purpose is to allow tailoring the materials in a structure so as to ensure ...

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1 minute read

Correlating Water Contact Angle With Water Break Measurements as an Indicator of Surface Energy

The water break test a common pass/fail method used to evaluate surfaces for the presence of hydrophobic contaminants, which can be detrimental to adhesion of paint or an ...

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1 minute read

Water Contact Angle Correlation to Crosshatch Adhesion Tape Test in Accordance with ASTM D3359-09

Manufacturers are familiar with adhesion challenges when attempting to bond, paint, etch, or coat a substrate. Poorly prepared surfaces can undoubtedly produce problematic ...

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1 minute read

Rapid Evaluation of Surface Properties of Medical Tubing for Process Development and Quality Assurance

This paper is a joint creation between BTG Labs and Teleflex Inc., a prominent provider of medical devices such as medical tubing.

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Control of Cleaning Processes to Maximize Sealant Performance

Cleanliness in automotive powertrain manufacture is critical for several reasons. Particulates generated in the various casting and machining processes must be effectively removed ...

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Novel Wetting Measurements for Rapid Quality Assurance of Surface Treatment for Adhesion on Polymers

This work presents the results of investigations into the ability of the ballistic drop deposition technique to measure surface treatment in corona and flame treated oriented ...

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Effect of Surface Roughness on Contact Angle Measurements Obtained with the Surface Analyst

A frequent question from people who use contact angle measurements to characterize surfaces and control manufacturing processes is, “What effect does surface roughness have on ...

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1 minute read

Effect of Grit-Blasting on the Surface Energy of Graphite/Epoxy Composites

Composites consisting of polymer matrices reinforced with graphite fibers are attractive materials for structural applications in the aerospace industry because they are light in ...

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Water Contact Angle as a Quantitative Measure of Total Polyethylene Surface Energy

A wide variety of plasma treatments was performed on polyethylene surfaces, resulting in a wide range of total surface energies.

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< 1 minute read

Contact Angle Measurements and Surface Analysis of Atmospheric Pressure Plasma Treated Polypropylene

The Surface Analyst™ rapidly obtains contact angle measurements from surfaces via Ballistic Deposition, whereby a small drop of liquid (usually water) is constructed in situ on ...

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Surface Preparation for Medical Device Manufacturers eBook

Surface preparation is a critical manufacturing process that enables sealing, bonding, painting, coating, printing, and cleaning. By utilizing appropriate surface preparation ...

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Progress in the Reliability of Bonded Composite Structures

This paper reviews recent research progress in the detection of contamination on surfaces for bonded composites.

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The Surface Analyst: Advanced Goniometry for Manufacturing

There are fundamental differences between an NRL-style goniometer and the Surface Analyst, most of which contribute to the value of the measurement for development and control of ...

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Qualification of Surface Processes for Bonded Aircraft Repair

Metals present extremely high energy, reactive surfaces to the environment. When mechanically or chemically cleaned, they rapidly oxidize and adsorb contaminants such as organic ...

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1 minute read

Gage Repeatability and Reproducibility of the Surface Analyst

Gage Repeatability and Reproducibility is a valued measure of a gauge’s appropriateness for use in a specific application.  Although this value is assigned to the gauge itself, it ...

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2 minute read

Investigating the Impact of Solvent Wiping and Sanding Procedures on Surface Energy

Solvent wiping and sanding procedures can greatly affect the surface energy of a substrate. To investigate the surface energy differences following different preparation ...

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1 minute read

The Surface Analyst's Innovative Method of Depositing Water to Measure Contact Angle: Ballistic Deposition

The forces acting on a liquid drop in contact with a surface can be represented as the surface energy of the solid, the surface tension of the liquid, and the energy remaining at ...

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< 1 minute read

A Comparison of Dyne Inks with the Surface Analyst

While suitable in some cases for estimating surface energy (and therefore cleanliness or treatment level), the imprecision and subjectivity of wetting tension measurements makes ...

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