Low-smoke halogen-free flame retardant is an environmentally friendly and efficient flame retardant, which produces very little smoke when burning and does not release toxic gases, so it is called “low-smoke halogen-free”. This flame retardant is mainly composed of inorganic and organic substances such as metal oxides, phosphorus compounds, nitrogen compounds, and has excellent flame retardant properties.
peculiarity
Environmental protection: low-smoke halogen-free flame retardants do not contain halogens, so they do not produce toxic gases, such as hydrogen halide, when burned, and are environmentally friendly.
Low smoke: The amount of smoke generated during combustion is very small, which helps to reduce the sight obstruction of the fire scene and improve the efficiency of escape and rescue.
High efficiency: Has excellent flame retardant performance, can effectively prevent the spread of flame, improve the fire resistance of the material.
principle
Low-smoke halogen-free flame retardants play a flame retardant role mainly through the following mechanisms:
Endothermic reaction: At high temperatures, flame retardants can absorb a lot of heat and reduce the temperature of the surface of the material, thus inhibiting the generation of flammable gases and the spread of flames.
Forming a carbon layer: When burning, the flame retardant can promote the formation of a carbon layer on the surface of the material, which can isolate oxygen and heat and prevent the further spread of the flame.
Free radical capture: Some flame retardants can capture free radicals generated during the combustion process, interrupting the combustion chain reaction, so as to achieve the purpose of flame retardant.
Application field
Low-smoke halogen-free flame retardants are widely used in the following fields:
Wire and cable: used for insulation layer and sheath layer of wire and cable to improve the flame retardant performance and service life of the cable.
Automotive interior parts: such as seats, carpets, etc., need materials with flame retardant properties, and low-smoke halogen-free flame retardants can effectively improve the safety of these materials.
Building materials: such as gypsum board, wallboard and other building materials that need to have flame retardant properties, the use of low-smoke halogen-free flame retardants can improve the safety of buildings.
Electronic appliances: such as computers, mobile phones and other products need to have flame retardant performance, low-smoke halogen-free flame retardants can effectively improve the safety of these products.
Development trend
With the continuous improvement of people’s attention to environmental protection and safety, the market prospect of low-smoke halogen-free flame retardants is more and more broad. In the future, with the advancement of technology and the reduction of costs, low-smoke halogen-free flame retardants will be applied in more fields, bringing more security to people’s lives.
In summary, low-smoke halogen-free flame retardant is an environmentally friendly and efficient flame retardant, which has a wide application prospect.
