Characterizing Modified Low-Temperature Powder Coatings

The addition of nanoparticles to create functional coatings can have a major impact on the fluidization and thus on the application of powder coatings on the components.

Coatings are mainly used for protection, for decorative, or functional purposes and achieve the desired improvement in material properties exactly where they are needed. Depending on the nanoparticle type and concentration, powder properties such as cohesion strength, fluidization point and air retention capacity may change to different extents. The additives’ influences must be examined and validated in order to avoid production problems. For this purpose, powder rheological measurements are well-suited and are applied in this study. Furthermore, the impact on functional surface properties such as superhydrophobicity, scratch resistance and antimicrobial properties are examined.

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