palonsuojaaineiden

Palonsuojaaineet, known in English as flame retardants, are chemical additives that are incorporated into combustible materials to slow down or prevent the spread of fire. They work by interfering with the combustion process in various ways. Some flame retardants act by releasing water vapor when heated, which cools the material and dilutes flammable gases. Others form a char layer on the surface of the material, acting as a physical barrier to heat and oxygen. Still others interfere with the chemical reactions that propagate flames in the gas phase.

The use of flame retardants is widespread across many industries. They are commonly found in plastics used in electronics, furniture, and building materials to meet fire safety standards. Textiles, such as upholstery and clothing, also often contain flame retardants to reduce flammability. Adhesives, coatings, and insulation materials are other areas where these compounds are applied.

However, the use of certain flame retardants has raised environmental and health concerns. Some older types, such as brominated flame retardants, have been found to persist in the environment and accumulate in living organisms, leading to potential health effects. This has prompted research and development into alternative, less persistent, and less toxic flame retardant technologies. Regulatory bodies in many countries have enacted restrictions or bans on specific flame retardant chemicals due to these concerns, driving innovation towards safer alternatives.