Organic Silicon Flame Retardant
Jul 25, 2024
Introduction to flame retardants
Organic silicon flame retardant: The molecule contains siloxane chain segments, which can increase the oxygen index of the material. After combustion, the amount of carbon formed in the system will also increase, effectively reducing the heat release of the material. Mainly including organosiloxane, polysiloxane, siloxane copolymer, polysilicborane, and silicone resin. This series is halogen-free, efficient, low smoke, and eco-friendly, making it an important direction for the future development of flame retardants.
It is generally believed that the flame retardant mechanism of condensed phase is the flame retardant principle of organic silicon flame retardants. Even if a cracked carbon layer is formed on the surface of the material, the oxidation resistance of the cracked carbon layer is improved to achieve the purpose of flame retardancy.
Flame retardant mechanism:
1. Mechanism of condensed phase flame retardancy: At high temperatures, flame retardants form condensed phases on the surface of polymers, isolating air, preventing heat transfer, reducing the release of flammable gases, and achieving flame retardancy.
2. Free radical capture mechanism: During polymer combustion, a large amount of free radicals are generated to promote gas-phase combustion. If the free radicals can be captured and eliminated, the chain reaction of free radicals can be cut off to control combustion.
3. Cooling mechanism: At high temperatures, flame retardants absorb heat, dehydrate, and decompose, reducing the temperature of the polymer surface and combustion area, preventing further thermal degradation, reducing the volatilization of flammable gases, and achieving flame retardant purposes.
4. Synergistic mechanism: By compounding several flame retardants, the various mechanisms of action work together to reduce the amount of flame retardants used and achieve better flame retardant effects.
Flame retardant is an additive that can improve the flame resistance of materials, prevent the continuous combustion of materials, and suppress the spread of flames in all directions. It is mainly used for flame retardant natural polymer materials and organic synthetic polymer materials.
Flame retardants do not need to be classified:
Different from the substrate relationship, it can be divided into additive flame retardants and reactive flame retardants.
Different chemical compositions can be divided into organic flame retardants and inorganic flame retardants.
The flame retardant elements contained are divided into halogen based and antimony based flame retardants, nitrogen and phosphorus based flame retardants, silicon based and aluminum magnesium based flame retardants.
Our main products are inorganic flame retardant,inorganic phosphorus flame retardant,expansion type phosphorus flame retardant,organic phosphorus flame retardant,inorganic silicon flame retardant,organic silicide flame retardant.
