Non-Halogenated Flame Retardants Are Used For Improving Fire Resistance in Paints and Coatings, and Epoxy Resins and More


Non-Halogenated Flame Retardants

Non-Halogenated Flame Retardants are chemicals that include nitrogen and phosphorus compounds. They form a protective burn in the condensed phase or release free radicals for displacing oxygen in the gas phase inhibiting the flame. Applications of this chemical include paints and coatings, adhesives, electronic equipment, and wires. Epoxy resins are used in these applications and are coupled with flame retardant additives to improve their fire resistance. The demand for non-halogenated flame retardants is expected to rise in near future owing to rapid industrialization in the BRICS countries. This material is also used in the production of electrical equipment and automobile parts.

The main mechanism of flame retardancy is chemical. First, the material reacts with free radicals produced during combustion. This reaction results in a reduction in flame density and lowers the burning rate of combustible materials. Second, a non-halogenated flame retardant reduces the release of smoke. Finally, a Non-Halogenated Flame Retardants decomposes under high temperatures, releasing a non-combustible gas.

Another method of Non-Halogenated Flame Retardants is inorganic. Inorganic flame retardants are comprised of ultrafine inorganic metal oxides. These materials are mixed in a physical dispersion state. Inorganic flame retardants achieve their flame retardant effects through chemical and physical changes in gas and condensed phase. Due to these factors, non-halogenated flame retardants are generally a better choice in many instances.

Another way to improve Non-Halogenated Flame Retardants is through the use of additives with synergistic effects. Phosphorus oxychloride, ethyl carbamate, and melamine disulfide, are all examples of these additives. Compared to halogenated flame retardants, organic coatings have better anti-hygroscopic and thermal stability. Moreover, these compounds are non-toxic. Increasing use of plastic in automotive manufacturing is also driving the demand for non-halogenated flame retardants. Plastic is lighter and more fuel-efficient than metal. In January 2022, Lubrizol Engineered Polymers launched a novel non-halogenated flame retardant grade ESTANE ZHF 90AM9 NAT 01 TPU, which combines a regulatory-compliant solution and performance for wire and cable applications.

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