Surface Science Blog

Evaluate the influence of surface roughness on wettability

Posted by Matthew Dixon on April 13, 2016

While contact angle (CA) goniometry involving placing a drop of liquid on a surface and measuring the resulting angle has been around for many years, we have only recently developed a system to account for the underlying surface’s micro-scale roughness.

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Topics: Wettability, Adhesion, Contact Angle

Wettability analysis for Inkjet Printing

Posted by Maiju Pöysti on April 4, 2016

Surface tension of inkjet inks and the wettability of the printing substrate are important factors influencing the final printing quality and process reliability. Surface tension and interfacial interactions can be explored with various tensiometry technologies: Equilibrium and dynamic surface tension measurements can be utilized in ink formulation and development.

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Topics: Wettability, Contact Angle

How surface roughness and wettability affects biocompatibility

Posted by Anna Oom on November 24, 2015

Various types of artificial materials are being utilized as implants in all fields of medicine. The surface properties of the implant determine its interactions with the surrounding host tissue. Physicochemical properties of the surface, like wettability and surface roughness, are of prime importance for the optimization of adhesion, spreading and proliferation of cells.



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Topics: Biomaterials, Wettability, Surface Roughness, Protein Adsorption, Adhesion, Surface Free Energy

The Influence of Surface Roughness on Wettability in Paper and Board

Posted by Anna Oom on June 23, 2015


Did you know that surface roughness affects paper and board wettability? Due to their fiber-like structure, paper and board surfaces almost always have a surface with roughness. This roughness inherently affects the wettability as it amplifies the wetting effect of the surface chemistry. For hydrophilic surfaces, added surface roughness makes the surface further hydrophilic whereas with hydrophobic surfaces the effect is reversed. 

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Topics: Wettability, Surface Roughness, Paper and Board

6 Reasons to Measure Wettability in Paper and Board Quality Control

Posted by Anna Oom on June 11, 2015


The parameters that are being measured in quality control of paper and board may differ for several reasons; what applications the paper is made for, available instrumentation, traditions etc. If you haven’t thought about measuring wettability and adhesion properties of your paper, here are 6 reasons to start doing so.
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Topics: Quality Control, Wettability, Surface Roughness, Paper and Board, Contact Angle