Triallylisocyanurate

Triallylisocyanurate (TAC), also known as triallyl cyanurate, is an organic compound with the chemical formula C₁₂H₁₅N₃O₃. It is a colorless to pale yellow liquid with a faint odor, commonly used as a chemical intermediate and in the production of various polymers. TAC is derived from cyanuric acid and allyl alcohol, forming a triallyl ester through a condensation reaction.

The primary application of triallylisocyanurate lies in its use as a crosslinking agent in thermosetting resins, particularly in unsaturated polyester resins and epoxy systems. When exposed to heat or ultraviolet (UV) radiation, TAC undergoes polymerization, forming a three-dimensional network that enhances mechanical strength, chemical resistance, and thermal stability in the resulting material. This property makes it valuable in the manufacturing of fiberglass-reinforced plastics, coatings, adhesives, and composite materials.

In addition to its role in polymer chemistry, TAC is employed in the production of flame-retardant additives for plastics and textiles. Its ability to release ammonia and carbon dioxide upon decomposition contributes to its effectiveness in reducing flammability. However, due to its potential toxicity and environmental concerns, TAC is typically handled with care, and its use is regulated in certain applications.

Safety considerations for triallylisocyanurate include proper ventilation during handling, as inhalation of vapors may cause respiratory irritation. Skin contact should be minimized, as prolonged exposure may lead to dermatitis. Storage should be in a cool, dry place, away from incompatible substances such as strong oxidizers or acids. Proper personal protective equipment, including gloves and goggles, is recommended when working with TAC.

While triallylisocyanurate is an important industrial chemical, ongoing research focuses on safer alternatives and improved handling practices to mitigate its potential hazards.