Chemical and Thermal Stability of Alkylsilane Based Coatings for Membrane Emulsification

Silicon nitride microsieves are excellent candidates for their use in membrane emulsification processes. These microsieves have well‐defined pores with extremely narrow pore size distributions. To produce water in oil emulsions the surface of the microsieves has to be altered from a hydrophilic to a hydrophobic state. We establish this by applying a coating based on self‐assembled monolayers of alkylchlorosilanes. This paper focuses on the chemical and thermal stability of these coatings considering the cleaning procedures used in food and diary industry.