Surface modifiers – new thinking!

Surface modifiers – new thinking!

For a long time, we deal with the question how polymers behave on surfaces and how they are applied onto the surface. The interesting thing about this topic is that there are different systems based on polymers and organic or inorganic “fillers” which can be incorporated. There are possibilities to bring these polymers into micronised form and to use them for varnishing systems. These systems usually consist of aqueous or solvent-based fluids, in which, in addition to these micronized polymers, other additives such as pigments for coloring can also be incorporated.

In itself, this technology is not new, but we can achieve significantly higher qualities with different process adjustments. This opens up new possibilities for the end users, particularly in the field of large-area product coatings, since our products generate a very high homogeneity and thus an extremely precise pigment distribution on the surface. The production or incorporation into varnish systems takes place by means of known processes and requires no special process control from the manufacturers. The combination of this new technology and the fantastic quality offers completely new possibilities while at the same time an enormous price/performance ratio.

How does this work?

Surface modifiers are largely waxes and additives such as polytetrafluoroethylene (PTFE) or other organic and inorganic fillers. In the case of the wax systems, it is also possible to produce so-called hybrid waxes, in addition to the known waxes, such as polyethylene waxes, polypropylene waxes, Fischer-Tropsch waxes, amide waxes or Carnauba waxes and other more exotic systems, which bring substantial advantages.

In principle, it is similar to thermoplastic polymer systems, where one selects individual materials by means of their configuration, conformity and conformation, and combines them in suitable processes. As a result, the end properties are significantly influenced and provide novel systems result. Since the field of applications is enormously large with other additives, such as PTFE or other organic additives and further inorganic fillers, new possibilities are always explored and used.

In addition to the materials and their combinations, the grinding and particle size as well as the particle size distribution are of great importance to achieve specific properties. The incorporation of the powders into aqueous or solvent-containing systems as well as in powder coatings is can be carried out with standard mixing equipment.

What are the advantages?

As a major advantage of this technology, we see the excellent price performance and the hugely extensive possibilities to produce products that are used for the modification of surfaces. The incorporation of the organic and inorganic substances can be quantified so precisely that we have developed special test methods that guarantee our customers the highest quality while at the same time efficiently controlling internal process control.

In addition, however, there are also advantages of modifying thermoplastics and the incorporation of highly efficient additives in order to alter rheological, mechanical or thermal properties. Since the abovementioned systems also function in the area of modification of plastics, one must consider a correspondingly suitable material selection to find the right application.

By means of suitable combinations and development projects together with customers, the possibilities are almost unlimited, ranging from the improvement of the sliding behavior, the increase of the scratch resistance to the more efficient subsequent processes, for example in the area of metal forming.

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