Dynasylan® for high quality surface modification
For this purpose, the inorganic surface of the pigment must be chemically modified in order to adapt it to the respective resin it will be incorporated in.
Inorganic pigments like TiO2, iron oxide, ATH (aluminium trihydrate) and others are often rendered hydrophobic using alkylsilanes. Other functional modifications are also feasible.
For a high quality surface modification, functional organosilanes and silane oligomers are used. They chemically bond to the inorganic surface while the right choice of functionality of the silane result in reduced viscosity, better adhesion, higher filler loads of the compound.