The master’s thesis deals with the production of microcapsules for the use in self-healing coatings. Self-healing coatings belong to a group of intelligent materials because they restore surface damage without human intervention. In this way, self-healing coatings maintain the substrate material and prevent its degradation more efficiently. This significantly reduces maintenance costs. In the introduction, possible self-healing mechanisms are presented, serving as the basis for our selection of the preparation of microcapsules. The aim of this research was to prepare capsules that can be used as an additive to the existing coating products. The capsules for self-healing of coatings are mixed into the coating just before the surface coating is applied on the substrate. Two types of microcapsules are studied in this thesis. The first type is the capsules that contain the core with the same composition as the coating in which they are added. The second type of capsules is microcapsules containing drying oil. The microcapsules with drying oil core were coated with a gelatinised wrapping (shell). The capsules were produced by the process with Ultraturax and with a magnetic agitator. They were mostly prepared in the size range between 0.75 μm and 2 μm. The microcapsules with the coating core were produced by various processes with a BÜCHI encapsulator, but alginate, hitozan and also gelatin have not been proven to be suitable as a coating (wrapping, shell) material. The microcapsules produced were analysed microscopically and the process yields of the preparation methods were determined.
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