What is flame retardant? What is the principle of flame retardants?

coating raw materials and equipment network:
in modern life, flame retardants are almost everywhere. However, people usually do not see it at all, and there is no way to know its existence. For most people, there is no idea what flame retardants are. In fact, in the mobile phones we carry with us, in the computers on our desks, in the subways we ride every day, in the cars we drive, and even in the mattresses that make you sleep every night, thousands of flame retardants are always ready like alert little guards, silently guarding your life and property, keeping us safe from the threat of fire.is a flame retardant?As the name implies, flame retardants are chemical aids that prevent objects from burning, adding flame retardants to flammable materials can make them difficult to ignite in the event of an open fire, or they are easy to extinguish and spread easily after ignition. Flame retardants also reduce heat and smoke release.flame retardant is not a simple product, but a large family, family members have 700 to 800 kinds, can be divided into organic flame retardants and inorganic flame retardants, or according to the reaction elements are divided into halogen, phosphorus, nitrogen and silicon systems, but also according to the use of mixed, added and reactive types.
there are so many types of flame retardants to satisfy the "taste" of different materials. Each flame retardant guard has its own best position, they can also be used together, division of labor and collaboration, excellent completion of fire prevention tasks.these invisible little guards are active in every aspect of people's lives. They quietly "hidden" in mobile phones, computers, televisions, refrigerators and other electronic appliances circuit boards, a variety of electronic products in the plastic shell of them, aircraft, ships, bus seats and building walls insulation materials have their silent adhere to the figure. In Europe and the United States and other developed countries, flame retardants are also widely used in children, the elderly and patients and other people with reduced mobility clothing. China has also issued national standards for building materials and public places used in decorations, textiles, furniture, wires, switches, lamps, home appliances, etc. have made clear flame retardant requirements.principles vary it is not easy to take on the responsibility of a fire-control safety guard, flame retardants must have excellent skills.three major factors are needed for combustion - combustibles, fuels (oxygen) and fire sources. The combustion process is divided into heating, decomposition, fire, combustion and spread. Fires can be effectively avoided if any of these elements are removed, or if the combustion process is managed to be controlled in the embryonic stage of heating and decomposition.different types of flame retardants have their own high tricks in preventing flame burning: some prevent combustibles from producing flammable gases by absorbing heat; Some form a dense covering layer on the surface of the combustible material, isolating the contact between the combustible material and oxygen; Others capture free fundamentals involved in combustion reactions, with the aim of inhibiting free-based chain reactions; Others dilute oxygen by producing non-gas gases, which can slow down combustion.inorance flame retardant Al(OH)3 will be decomposed after being heated up to 200 degrees C, releasing crystalline water, crystalline water evaporated into water vapor when hot. This series of processes absorbs a lot of heat, lowers the temperature of the material surface and flame area, and slows down the thermal cracking reaction. In addition, the water vapor produced by crystalline water can also reduce the oxygen concentration and further inhibit the spread of the fire.Phosphorus flame retardant heat will become a more stable structure of cross-linked solids or carbid layer, like a solid armor, the combustible material wrapped, not only to prevent further heating of the material, but also to prevent the material internal decomposition of flammable gas spill continues to burn.the evaporation temperature of the bromine flame retardant and the decomposition temperature of the polymer material are the same or similar, when the polymer material is thermally decomposed, the bromine flame retardant will also wave out, and the thermal decomposition product at the same time into the gas phase combustion zone. Flame retardants can quickly capture free fundamentals in the combustion zone of the gas phase, inhibit the free-based chain reaction, prevent the spread of flame, and eventually slow down the combustion reaction until it is terminated.in short, each flame retardant has its own secret.Disclaimer: Part of the content of this article comes from the network, we have indicated the source, copyright belongs to the original author! If there is infringement or original do not want to be reproduced, please contact us to delete in time (email: 609052959@qq.com)!for more information, please pay attention to WeChat Public Number: Paint Mall/ Paint Raw Materials and EquipmentContribution Hotline: 0571-86195869Advertising Hotline: 18969103469