SURFACE COATING ON A LIQUID/SOLID CONTACT SURFACE

摘要

The invention relates to a surface coating on a contact surface between a liquid and a solid. Said coating enables charged surfaces to be neutralised, or precisely defined surface charges to be produced, in an aqueous solution. The surface is coated with neutral and/or charged macromolecules, amphiphile molecules or polymers, which are suitable, either respectively or in a composition, for adjusting a pre-determined surface charge on a contact surface, or for neutralising a given surface charge. A coating comprising neutral macromolecules prevents undesirable effects of electrical osmosis. Charged macromolecules can be used to adjust a precisely defined surface charge.