Novel nano additive for advanced eco friendly waterborne coatings

摘要

One of the most important and technologically relevant ways to reduce VOC emissions from coatings is to switch from solvent borne to waterborne coatings. However, waterborne coatings still cannot fully replace solvent borne alternatives due to their sometimes poorer performance. So there is a steady need to further improve waterborne coating materials. The present study demonstrates how a nano particle based additive can successfully be used in wood coatings, metal protective coatings, both DTM and primer top coat systems as well as in coatings for plastics to significantly improve the overall performance of waterborne coatings. In all cases, already small amounts of a nano particulate additive are sufficient to deliver remarkable improvements on properties like chemical resistance, humidity resistance, weathering resistance, blocking resistance or drying time.