Development of ecological fireproof materials
Introduction
The term flame retardants includes a diverse group of chemicals that are added to manufactured materials such as plastics and textiles, and surface finishes and coatings.[1] Flame retardants are activated by the presence of an ignition source and serve to prevent or retard the development of ignition by a variety of different physical and chemical methods. It can be added as a copolymer during the polymerization of a polymer, mixed with the polymer in a molding or extrusion process or, especially for textiles, applied as a final topical. Flame retardant minerals are typically additives while organohalogenated and organophosphorus compounds can be reactive or additives.
Environmental problems
The first flame retardants, polychlorinated biphenyls, were banned in the United States in 1977 when it was discovered that they were toxic,[3] and internationally since 2001.[4] Subsequently, since 2004 the European Union began banning some brominated flame retardants, expanding the restrictions again in 2008.[5] Their toxicity occurs especially in the event of fire, since their mechanism of action involves the release of acid. hydrochloric.
Since 2004, the European Union has sponsored numerous scientific studies to evaluate the toxicity of brominated flame retardants and seek alternatives with a lower ecological impact.[6][7][8] Simultaneously, multiple international organizations, such as the EFSA in the European Union and the EPA and FDA in the United States, have carried out complementary studies and proposed additional restrictions on the use of compounds with flame retardants, placing special emphasis on materials, such as electrical cables, used in high-traffic places. public.[5][9][10][11][12][13].
Benefits of fire retardant application
Fire prevention
One of the main benefits of applying fire retardants is effective fire prevention. By slowing the spread of flames, valuable time is gained for evacuation and emergency response.
Protection of assets and people
In addition to protecting your material assets, the safety of your staff and clients is paramount. A fire can have devastating consequences not only in economic terms, but also in people's health and safety.
Compliance with safety regulations
In many countries, complying with fire safety regulations is a legal obligation. Applying fire retardants helps you comply with these regulations, avoiding fines and potential legal problems.
[14].
References
- [1] ↑ «¿Qué son los retardantes de llama y sus aplicaciones? – Polyexcel». Consultado el 14 de diciembre de 2022.: https://polyexcel.com.br/es/productos/que-son-los-retardantes-de-llama-y-sus-aplicaciones/
- [2] ↑ U.S. Environmental Protection Agency (2005), Environmental Profiles of Chemical Flame-Retardant Alternatives for Low-Density Polyurethane Foam, consultado el 4 de abril de 2013 .: http://www.epa.gov/dfe/pubs/flameret/ffr-alt.htm
- [3] ↑ «Polychlorinated Biphenyls (PCBs) | ToxFAQs™ | ATSDR». wwwn.cdc.gov. Consultado el 17 de enero de 2023.: https://wwwn.cdc.gov/TSP/ToxFAQs/ToxFAQsDetails.aspx?faqid=140&toxid=26
- [4] ↑ Rossberg, Manfred; Lendle, Wilhelm; Pfleiderer, Gerhard; Tögel, Adolf; Dreher, Eberhard-Ludwig; Langer, Ernst; Rassaerts, Heinz; Kleinschmidt, Peter et al. (15 de julio de 2006). Wiley-VCH Verlag GmbH & Co. KGaA, ed. Chlorinated Hydrocarbons (en inglés). Wiley-VCH Verlag GmbH & Co. KGaA. pp. a06_233.pub2. ISBN 978-3-527-30673-2. doi:10.1002/14356007.a06_233.pub2. Consultado el 17 de enero de 2023. Se sugiere usar |número-autores= (ayuda).: https://onlinelibrary.wiley.com/doi/10.1002/14356007.a06_233.pub2
- [5] ↑ a b US EPA, OCSPP (29 de abril de 2015). «Chemicals under the Toxic Substances Control Act (TSCA)». www.epa.gov (en inglés). Archivado desde el original el 18 de enero de 2010.: https://web.archive.org/web/20100118092730/http://www.epa.gov/oppt/existingchemicals/pubs/actionplans/deccadbe.html