isocyanuratebased

Isocyanuratebased refers to chemical compounds that contain the isocyanurate ring structure as a fundamental component. The isocyanurate ring is a six-membered heterocyclic ring composed of alternating nitrogen and carbonyl carbon atoms, with the general formula (CNCO)3. This core structure is derived from the trimerization of isocyanates.

Isocyanuratebased compounds are particularly important in the field of polymer chemistry, most notably in the formation of polyisocyanurate foams, often referred to as PIR foams. These foams are created by reacting polyisocyanates with a blowing agent and other additives. The isocyanurate ring formation is a cross-linking reaction that occurs at higher temperatures than the urethane formation in polyurethane. This increased cross-linking leads to PIR foams having superior thermal stability and fire resistance compared to their polyurethane counterparts.

The properties of isocyanuratebased materials can be tailored by selecting different types of polyisocyanates and other components. They find widespread applications as thermal insulation materials in construction, refrigeration, and transportation due to their excellent insulating properties and fire performance. The chemical structure of the isocyanurate ring contributes to the rigidity and thermal stability of these polymers.