PHOSPHATE-BASED CERAMIC COATINGS COMPRISING AEROGEL PARTICLES

摘要

The invention provides phosphate-based ceramic coatings comprising aerogel particles, in particular such that are obtainable by reacting a component mixture A with a component mixture B, wherein component mixture A comprises water and acidic phosphate; and component mixture B comprises water and alkaline oxide and/or hydroxide; and wherein component mixtures A and/or B comprise aerogel particles. Further, the invention provides a method for coating a substrate with a sprayable phosphate-based ceramic coating which comprises the steps of (I.) separately providing component mixtures A and B, (II.) mixing component mixtures A and B; and (III.) spraying the mixture obtained in step II. onto the substrate to obtain a layer of phosphate-based ceramic coating comprising aerogel particles. The invention also provides a laminate comprising a protective layer and a layer of phosphate-based ceramic coating comprising aerogel particles as well as practical uses of such coatings and laminates, e.g. as fire-protection and insulation material, and products comprising the coatings and laminates of the invention.