Room-Temperature Self-Expanding Biobased Epoxy Foams with Reprocessability and Improved Fire Behavior
Fully bio-based, self-expanding epoxy−acid foams were developed in this work. The strategy employs phosphoric acid (PHO) as a curing agent and expansion activator in a vegetable oil-based epoxy formulation. This approach relies on the exothermicity of the epoxy−acid reaction to simultaneously drive curing and gas gen...