Evonik's dispersing additives are unrivalled in achieving high-quality masterbatches and liquid colorants by providing an optimum dispersion of pigments or fillers. Pigments, fillers, and colorants are all important components for many plastics formulations, giving the final product the desired appearance or the desired technical features.
More than 30 percent of all thermoplastics and rubber composites worldwide contain fillers. However, the distribution of fillers and pigments in polymers is a major technological challenge. To ensure these fillers are well integrated into the polymers, their inorganic surface must be chemically modified. Silanes like DYNASYLAN® are used as compatibilizers for this purpose. They ensure that the fillers are better incorporated into the material, leading to a significant improvement in the filled compounds.
By using silanes, users obtain a reinforced high-performance product. In addition to surface modification, the dispersion of fillers in the polymer matrices is also improved. Furthermore, silanes provide hydrophobization of the filled plastics, significantly reducing the water absorption of the polymer.