Contact angles of selective wetting of hexylamine-modified silica surface

- The angles of selective wetting of silica modified by hexylamine were measured.
- Modification of silica by hexylamine leads to inversion of the contact angle.
- The modification leads to phase inversion in the solid-stabilized-emulsions too.
- Empiric diagram of emulsion stability shows a region of complete instability.
- The emulsion type corresponded to the aqueous phase receding contact angle.