At present, industries around the world are actively responding to the call for environmental protection, striving to find green, safe and efficient solutions. The flame retardant materials field is no exception, and environmentally friendly aluminum hydroxide flame retardants have emerged as the new favorites of many industries. So, who is using it? Where  does it play a role? What is the reason  behind it? All of this is closely related to its unique flame retardant mechanism.

  Endothermic Cooling in the Flame Retardant Mechanism: The Key Mechanism to "Cool Down" Combustion 

  One of the core flame retardant mechanisms of environmentally friendly aluminum hydroxide flame retardants is endothermic cooling. Many industry practitioners , such as flame retardant material researchers and plastic and rubber product manufacturers, pay particular attention to this characteristic. When the temperature rises to about 200°C, aluminum hydroxide undergoes a decomposition reaction, with the chemical equation 2Al(OH)₃→Al₂O₃ + 3H₂O↑. This process is a "major heat absorber", with each gram of aluminum hydroxide absorbing approximately 878 joules of heat during decomposition. In an electronic appliance production workshop, when a short circuit in the circuit causes local high temperature, the plastic housing added with environmentally friendly aluminum hydroxide flame retardant can effectively reduce its own and the surrounding environment temperature through this endothermic process, making it difficult for the temperature to reach the ignition point of combustible materials, thus curbing the momentum of combustion and ensuring the safety of electronic products under high - temperature risks. This is why it is widely used in the manufacturing of electronic appliance housings in high - temperature environments  because it can significantly reduce the risk of combustion .

  Release of Water Vapor in the Flame Retardant Mechanism: The Dual Effects of Dilution and Barrier 

  As aluminum hydroxide decomposes, a large amount of water vapor is released. When manufacturing fire - resistant boards in a building material production factory, for example, these water vapor plays a crucial role. On the one hand, it can dilute the concentration of oxygen and combustible gases in the combustion area. When the board accidentally comes into contact with a fire source and starts to burn, the released water vapor quickly fills the surrounding space, as if "diluting" the combustion area, making oxygen and combustible gases "thin", and combustion is difficult to continue due to the lack of sufficient oxidizer and fuel. On the other hand, the water vapor forms a barrier similar to an "air curtain" at high temperatures, blocking the continuous supply of external oxygen to the combustion area and further weakening the fire. This dual effect makes environmentally friendly aluminum hydroxide flame retardants an indispensable part of the construction industry in creating safe fire - resistant building materials , effectively improving the fire safety of buildings in the current era when fires occur frequently .

  Formation of a Barrier Layer in the Flame Retardant Mechanism: A Solid Shield for Physical Protection 

  Decomposed aluminum hydroxide generates aluminum oxide (Al₂O₃), which is no ordinary product. In a rubber tire manufacturing factory, when environmentally friendly aluminum hydroxide flame retardant is added to the tire, once it encounters a high - temperature flame, aluminum oxide will form a dense and high - temperature - resistant solid barrier layer on the surface of the rubber. This barrier layer is like a solid "armor" for the tire. It can not only prevent heat from further transferring into the rubber, avoiding the decomposition of rubber at high temperatures to produce more combustible substances, but also completely separate external oxygen and combustibles from the flame, cutting off the combustion chain from a physical level. For scenarios where the tire may catch fire due to overheating of the brakes during vehicle driving (When), this barrier layer can greatly reduce the probability of fire and ensure the safety of drivers and passengers. This is also the key reason why those in the automotive manufacturing industry favor it.

  Environmental Protection Characteristics: The Only Choice under the Trend of Green Development 

  Against the backdrop of the "dual - carbon" goal and increasingly strict global environmental regulations , many fields, from plastic packaging production workshops to construction sites and electronic appliance manufacturing factories, urgently need environmentally friendly materials. Different from traditional halogen - containing flame retardants, environmentally friendly aluminum hydroxide flame retardants do not release any toxic or harmful gases during the entire flame retardant process, and the decomposition products, aluminum oxide and water, are harmless to the environment and human health. This excellent environmental protection characteristic makes it an inevitable choice for enterprises  that pursue green development, helping various industries to actively fulfill their environmental responsibilities while ensuring safety and moving towards a sustainable development path.