Water acrylic emulsions with silver nanoparticles: Study on stability and thermomechanical properties

Ecological painting materials are innovative products that are becoming more and more popular among producers and consumers. In the most common cases, scientists apply nanometals or their oxides, especially silver nanoparticles, which - thanks to their extraordinary properties - are widely used not only in the pharmaceutical and cosmetic industries as well as in (bio)medicine but also as a supplement to improve the properties of protective coatings, as has been shown in this paper. In particular the paper treats the impact of silver nanoparticles content added to the water acrylic emulsions on their stability, expressed by Turbiscan Stability Index, and thermomechanical properties. It was concluded that the silver nanoparticles addition makes the dispersions more stable compared to those with no addition of silver nanoparticles. Furthermore, in the case of the coatings manufactured from the paint composition, the increase in the nanosilver particles content shifts the pour and softening points towards the higher temperature values. As a consequence, the layers become less flexible. The problem under consideration has relevant importance for the development of novel, environmentally friendly coatings applicable in various areas of life.