polyurethane trimerization catalysts in spray-applied polyisocyanurate (pir) insulation technology: a comprehensive review abstract: spray-applied polyisocyanurate (pir) insulation represents a significant advancement in thermal management for building and industrial applications. the formation of pir foam relies heavily on the efficient trimerization of isocyanates, a reaction accelerated by specific catalysts. this article provides a comprehensive review of...

polyurethane trimerization catalysts in spray-applied polyisocyanurate (pir) insulation technology: a comprehensive review abstract: spray-applied polyisocyanurate (pir) insulation represents a significant advancement in thermal management for building and industrial applications. the formation of pir foam relies heavily on the efficient trimerization of isocyanates, a reaction accelerated by specific catalysts. this article provides a comprehensive review of...