Abstract:
Disclosed are coating compositions, methods for preparing the coatings and coatings made therefrom. The coatings have durable functional and damage healing properties. In some embodiments, compositions include a liquid media, surface modified diatomaceous earth (SMDE) particles chemically modified to impart a desired fluid wettability suspended in the liquid media, and microcapsules suspended in the liquid media. The SMDE particles are chemically modified through the use of various silanes imparting hydrophobicity, hydrophilicity, oleophobicity, or oleophilicity. In certain embodiments, the SMDE particles and the microcapsules are in different coating layers. In certain embodiments, compositions are in the form of powder coatings including mixtures of powder epoxy particles, SMDE particles chemically modified to impart a desired fluid wettability, and microcapsules. Disclosed further are methods for coating articles with the coatings and the coated articles.