Determining the physical and chemical characteristics of a surface is crucial, in order to maximize the effectiveness of post-treatment processes, like coating or painting. For example, wettability is important because it gives you an indication of how well a coating will adhere to a specific surface, and can be determined using contact angle measurements. Another important property is surface free energy (SFE), because along with the contact angle, it helps determine the wettability and adhesion characteristics for processes such as bonding, coating and printing. And since the contact of paints and adhesives with a metal surface (like the surface of an aircraft) often needs to be changed, measuring properties like the SFE of the metal and the surface tension of the coating material is necessary.
Within the aerospace industry, fixing tough bonding or adhesion issues is crucial for maintaining the high standards imposed on the manufacture of aircraft. Quality control is important during this manufacturing process, where aircraft parts are compared with rigorous standards and specifications.
Calculating the surface free energy of solid surfaces is necessary to develop adhesives that help meet strict safety standards in aircraft design. And with the mobile measurement of SFE, the KRÜSS Mobile Surface Analyzer sets new standards for quality control within the aerospace industry. Benefits include one-click measurements that get results in less than a second, quality control of pre-treated and coated surfaces, automation for easy handling, and reliability that matches non-mobile lab instruments.
- Understand the importance of surface free energy in coatings optimization
- Identify optimization parameters in their coating
- Determine what parameters in their surface and their coatings need to be considered to achieve the desired coating outcome
Why Is It Important?
An understanding of surface free energy and its components is essential in optimizing coatings that will have the desired adherence and durability of surfaces.