Flame retardants play a vital role in reducing the flammability of various materials. In recent years, people have become increasingly concerned about the environmental and health impacts of halogenated flame retardants. Therefore, the development and use of halogen-free alternatives has received widespread attention.
Let’s see the four parts of comparison.
1.Work:
Halogenated flame retardants contain one or more halogen atoms (such as chlorine, bromine) that effectively hinder the combustion process.
Halogen-free flame retardants, on the other hand, rely on different chemical mechanisms such as phosphorus, nitrogen or intumescent systems to achieve flame retardancy.
2.Fire performance efficiency:
Halogenated flame retardants are widely used in many fields due to their excellent fire retardant properties. They release halogen radicals during combustion, interrupting the free radical reactions that sustain the flame.
Halogen-free flame retardants, while not as effective as halogenated flame retardants, can still provide adequate fire protection by forming a protective char layer that acts as a heat insulator and flame barrier.
3. Environmental and health issues:
One of the main disadvantages of halogenated flame retardants is that they can release toxic gases during combustion. For example, brominated flame retardants are known to produce hazardous substances such as brominated dioxins and furans.
In comparison, halogen-free flame retardants are considered more environmentally friendly and less toxic. They provide a safe alternative for applications where environmental and health concerns are a priority.
4.Persistence and bioaccumulation:
Halogenated flame retardants are known to be persistent organic pollutants that can accumulate in the environment and food chain. They have been found in a variety of organisms, including wildlife and humans.
Halogen-free flame retardants are less persistent and have a lower potential to bioaccumulate, providing a more sustainable solution.
In conclusion:
Halogen-free flame retardants, while not as effective as halogenated flame retardants, offer a safer and more environmentally friendly alternative. As awareness of the environmental and health impacts of halogenated flame retardants continues to grow, the demand and development of halogen-free alternatives is expected to increase.
Shifang Taifeng New Flame Retardant Co., Ltd is a professional manufacturer of halogen-free flame retardants in China with 22 years of experience.
Contact emai: sales1@taifeng-fr.com
Tel/What’s up:+86 13518188627
Post time: Oct-09-2023
