Evonik paper titled Varying Si-substituents for rubber silanes examines hydrophobation of the silica surface, reducing the agglomeration tendency.
A variety of different Si substituents are known and described in literature and patents. This article focuses mainly on ethoxy groups and alkyl polyethers as substituents.
In the paper, it is shown, that the latter allow a very efficient hydrophobation of the silica surface, reducing the agglomeration tendency of the silica.
Authors of the paper are: Dr. Oliver Klockmann, Andre Hasse, André Wehmeier, Dr. Jens Kiesewetter, Evonik Operations GmbH.
