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What is the difference between halogen-free flame retardants and traditional halogen flame retardants?

Publish Time: 2024-02-21
Halogen-free flame retardants have some differences from traditional halogen flame retardants in terms of chemical composition, environmental performance and application scope:

1. Chemical composition: Halogen-free flame retardants are mainly based on elements such as phosphorus and nitrogen, such as phosphate esters, nitrogen phosphates, etc., and prevent the spread of flames by producing inert gas, nitrogen and carbon films at high temperatures. Traditional halogen flame retardants contain chlorine, bromine and other halogen elements, such as brominated compounds, chlorinated compounds, etc., to achieve flame retardant effects by preventing flame chain reactions.

2. Environmental performance: Halogen-free flame retardants are more environmentally friendly than traditional halogen flame retardants, because halogen flame retardants may release halogen compounds during the combustion process, which is potentially harmful to the environment and human health. Halogen-free flame retardants do not contain halogen elements and are more in line with current environmental protection requirements.

3. Toxicity and safety: Halogen-free flame retardants generally have lower toxicity and better safety than traditional halogen flame retardants, and are less harmful to the human body and the environment.

4. Scope of application: Halogen-free flame retardants have great market potential in some fields with strict restrictions on halogens, such as electronic and electrical equipment, automotive materials, etc. Traditional halogen flame retardants are still used in some specific application scenarios because they have certain performance advantages.

In summary, halogen-free flame retardants have better environmental performance and safety than traditional halogen flame retardants, and have gradually become a development trend in the field of flame retardant materials. When selecting flame retardants, halogen-free flame retardants can be considered based on specific needs and application scenarios to improve the environmental protection and safety of the product.

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