Novel approaches for low VOC alkyds -key to eco friendly coatings

摘要

Alkyd resins have proven themselves both from a cost and performance point of view over a wide range of coatings applications for architectural metal, wood, industrial, agricultural and construction equipments. As alkyd paints are solvent-borne, they contribute to Volatile Organic Content (VOC) emissions. Increasing concerns regarding ground level ozone and indoor air quality have spurred research activities to find alternative technologies to lower VOC emissions without compromising performance. This has proven to be a major challenge for the coating industry as the key issue is reformulating solvent borne paints having lowest possible VOC while delivering expected performance benchmarks. Designing high solid coatings derived from Hyperbranched polymers, Sucrose Polyesters, Di Methylol Propionic Acid (DMPA) and Water Borne Alkyds are a few concepts which can be used for a sustainable and environment friendly coatings without sacrificing the performances.