Halogen-free flame retardants are usually non-toxic. The following is a detailed explanation of this view:
First, the definition and characteristics of halogen-free flame retardants
Halogen-free flame retardants refer to flame retardants that do not contain halogens such as chlorine, bromine, fluorine, etc. Compared with traditional halogen-based flame retardants, halogen-free flame retardants do not produce toxic hydrogen halide gas during combustion, and thus have better environmental protection performance. The main mechanism of action of halogen-free flame retardants is to form a porous carbon layer, which has the advantages of low smoke and non-toxicity.
Second, the composition and safety of halogen-free flame retardants
Halogen-free flame retardants mainly include phosphorus series such as phosphate esters and phosphonate esters, phosphorus and nitrogen series such as melamine phosphate (ester), inorganic hydroxide series such as magnesium hydroxide (aluminum) and antimony oxide, organosilicon series such as polysesquisiloxane, nitrogen series such as cyanuric acid melamine, and boron series such as zinc borate, etc. These components do not produce toxic gases when burned and are harmless or pose minimal harm to human health and the environment.
Third, the application and environmental advantages of halogen-free flame retardants
Halogen-free flame retardants are widely used in fields such as wires and cables, electronic components, building materials, and household appliances due to their non-toxicity, low smoke, and environmental friendliness. It can not only effectively enhance the flame retardant performance of materials, but also reduce the harm to the environment and human health.
Fourth, the difference between halogen-free flame retardants and halogen-based flame retardants
Halogen-based flame retardants produce a large amount of smoke and toxic hydrogen halide gas when burning, causing serious harm to human health and the environment. Halogen-free flame retardants, on the other hand, avoid these problems and are more in line with environmental protection and safety requirements.
Fifth, safety precautions for halogen-free flame retardants
Although halogen-free flame retardants themselves are non-toxic, attention should still be paid to their safety and environmental protection requirements during use. For example, direct contact with the skin or inhalation of its dust should be avoided; Leakage and contamination should be prevented during storage and transportation. When disposing of the waste, harmless treatment should be carried out in accordance with relevant regulations, etc.
