A promising method for polyurethane recycling: vitrimerization through the activation of carbamate exchange by organic catalysts

International audienceIn this work, we studied the effect of several organic catalysts on lab synthesized and industrial PU, and compared them to reference organometallic catalysts. We evaluated the activity of catalysts through rheology, DMA and stress-relaxation measurements with several PU formulations and the continuous reprocessing in internal mixer of the industrial PU with the best catalysts

A promising method for polyurethane recycling: vitrimerization through the activation of carbamate exchange by organic catalysts

International audienceIn this work, we studied the effect of several organic catalysts on lab synthesized and industrial PU, and compared them to reference organometallic catalysts. We evaluated the activity of catalysts through rheology, DMA and stress-relaxation measurements with several PU formulations and the continuous reprocessing in internal mixer of the industrial PU with the best catalysts