Intumescent coatings are a type of fireproof material that expands at high temperatures to form an insulating layer. They are widely used in fire protection for buildings, ships, and industrial equipment. Flame retardants, as their core ingredients, can significantly improve the fireproof properties of coatings. Under high temperature conditions, flame retardants release inert gases through chemical reactions, dilute the oxygen concentration, and promote the expansion of the coating to form a dense carbonized layer, effectively isolating the spread of heat and flames.
Commonly used flame retardants include phosphorus, nitrogen, and halogen compounds. Phosphorus flame retardants delay combustion by generating a phosphate protective layer; nitrogen flame retardants release nitrogen to dilute combustible gases; and halogen flame retardants interrupt the combustion chain reaction by capturing free radicals. In recent years, environmentally friendly flame retardants (such as halogen-free flame retardants) have gradually become a research hotspot due to their low toxicity and environmental friendliness.
In short, the application of flame retardants in intumescent coatings not only improves fireproof properties, but also provides reliable protection for building safety. In the future, with the improvement of environmental protection requirements, efficient and green flame retardants will become an important direction for the development of the industry.
Post time: Mar-10-2025
