Acrylate-Based Coatings: The Most Common and Versatile Chemistry in Radiation Curing
Acrylate-based coatings are the most common and versatile chemistry in the radiation curing industry, forming the foundation of countless UV and EB formulations. Acrylates, which are esters of acrylic acid, are valued for their fast polymerization rates under UV light and electron beams, enabling the rapid production cycles that define the technology.
The dominance of acrylate chemistry stems from its exceptional reactivity and the broad range of performance properties it can achieve. Oligomers based on epoxy, urethane, and polyester acrylates offer a spectrum of performance, from the toughness and high chemical resistance of epoxy acrylates to the flexibility and impact resistance of urethane acrylates . This versatility allows formulators to design coatings for specific applications, such as the scratch-resistant finishes on wood flooring or the protective coatings on electronic devices .
The industry is continuously innovating within acrylate chemistry to address sustainability and performance challenges. A key area of research involves developing bio-based acrylates from renewable resources, such as cardanol derived from cashew nutshells . Researchers have successfully synthesized multifunctional cardanol-based modifiers that reduce resin viscosity, improve toughness, and enhance antimicrobial properties, paving the way for high-performance, sustainable UV-curable anticorrosive coatings . This shows how acrylate chemistry is adapting to meet evolving market demands.
