BTDA-cured epoxy powder coatings for high glass-transition temperatures

Presenter: Vinay Mishra, Ph.D., Jayhawk Fine Chemicals Corporation

Abstract

Abstract Authors: 
Vinay Mishra, Jayhawk Fine Chemicals Corporation
Kevin Biller, Powder Coating Research Group
Nikola Bilic, Kansas Polymer Research Center, Pittsburg State University

Epoxy powder coatings offer a range of properties based on the selection of epoxy resin, curing agent and cure schedule. Dianhydrides are a unique class of curatives which result in very high crosslink densities using rather simple solid epoxy resins (SERs) based on bisphenol A. The resulting powder coatings offer sustained high glass transition temperature (Tg), high-temperature service, superior dielectric strength and broad chemical resistance properties. The presentation will introduce BTDA (benzophenone tetracarboxylic dianhydride) as a leading example of this category of curing agents and explore the reasons behind its high performance. It will also share results from a recent collaborative study on the Tg development of BTDA-epoxy formulations focusing on variables such as EEW, A/E stoichiometry and cure profiles.

About Vinay Mishra
Vinay is a Technical Sales Manager at Jayhawk Fine Chemicals, focusing on dianhydride applications in high-end thermoset applications, using epoxies and polyimides. He brings 25 years of industrial experience in thermoset resin technologies, covering various applications such as composites, coatings, and adhesives. He has previously held technology & business leadership roles at companies such as ITW, Sika, Air Products and Dixie Chemical. He is currently a Director at the NJ SAMPE chapter and serves on ACA’s powder coatings committee. He has served other industry associations in the past, including TRFA (Thermoset Resin Formulators Association) as president for two years. Vinay holds a BS in chemical engineering from the Indian Institute of Technology (BHU) and a PhD in polymers from Lehigh University.