Scientific Understanding and Environmental Protection of TCEP Flame Retardant

With the wide application of polymer materials and electronic consumer products, the flame retardant performance of polymer materials is becoming more and more important. TCEP flame retardant plays an indispensable role in it. The incidence of fire is also rising, and the harm it brings is shocking. The development direction of flame retardant in the future is green and environmental protection. Then, let's learn about the scientific understanding and environmental protection of TCEP flame retardant!

How TCEP Flame Retardants Work

TCEP flame retardant agent is to improve the flame retardancy of polymer materials, save lives and reduce losses. According to the structure, TCEP flame retardants can be divided into macromolecular polymerization type and small molecule flame retardants. By improving the ignition point of polymer materials, reducing the burning speed of materials and prolonging the rescue time, additive flame retardants are mostly used in thermoplastic polymer materials, do not react with other components in the material, and only physically exist in polymer materials. Reactive flame retardants are mostly used in thermosetting polymer materials, which can be divided into additive flame retardants and reactive flame retardants according to the method of use; according to whether the material contains halogen, it can be divided into halogen flame retardants and halogen-free flame retardants, which participate in the chemical reaction of synthetic polymer materials and become the structural unit of polymer materials.

When the polymer material encounters a fire, it will generate water and other organic matter after combining. Other organic matter and oxygen are further combined to decompose and form new organic matter. A violent oxidation reaction occurs, releasing a large amount of hydroxyl groups. Because the hydroxyl group is very active and easy to combine with other substances, combustion continues in this series of cyclic reactions.

In this process, how does TCEP flame retardant work? According to the three elements of combustion-combustibles, combustibles and fire sources, the flame retardant principle of TCEP flame retardant can be summarized as follows:

1. Flame retardant by absorbing heat, this process absorbs a lot of heat, reduces the temperature of the surface of the material, flame retardant, for example, inorganic flame retardant aluminum hydroxide decomposes at high temperature, releases crystal water, and the crystal water evaporates as water vapor.

2. By generating inert gas to dilute oxygen, inhibit the spread of fire, slow down the combustion rate of aluminum hydroxide flame retardants, etc., the generated water vapor can reduce the oxygen concentration around the material.

3. A tight coating is formed on the surface of the material to isolate the material from contact with oxygen. For example, phosphorus-containing flame retardants will become a more structurally stable cross-linked solid substance or carbonized layer at high temperatures, wrapping the material and preventing combustion from continuing.

4. Capture the free radicals involved in the combustion reaction, capture the free radicals in the gas phase combustion zone, inhibit the free radical chain reaction, inhibit the free radical chain reaction, such as brominated flame retardants. During the pyrolysis of polymer materials under high temperature conditions, the brominated flame retardants and pyrolysis products enter the gas phase combustion zone at the same time to prevent flame propagation.