Introduction of halogen flame retardants

The nature of the substrate and engineering plastics of FRP products are synthetic resins. Therefore, the glass steel products also have the problem of aging.

There are two types of aging: physical aging and chemical aging. Physical aging and chemical aging are often complicated processes that occur at the same time or at the same time. Physical aging is a change that occurs due to physical effects. It does not involve chemical changes in the molecular structure of synthetic resins, that is, it does not affect the combustion properties of FRP. Chemical ageing is exactly the direct factor that changes the combustion performance of FRP.

In the aging of flame-retardant FRP, although different kinds of flame-retardant FRP may have different aging phenomena or have different aging characteristics due to different conditions of use or environment, different aging characteristics may destroy the original flame-retardant glass fiber reinforced plastic. The combustion performance.

Whether the stability of the FRP combustion property depends on its chemical structure, spatial configuration, sequence of links, degree of branching of the segments, degree of interlinkage and its distribution, etc. The chemical structure has good stability and good anti-aging properties. If some weak bonds are caused in the monomer process, the flame-retardant glass steel material is easily affected by various external factors and aging occurs, thereby affecting the combustion performance of the flame-retardant glass steel.

Halogen-based flame retardants are one of the world's largest organic flame retardants, and they are also the most effective type of flame retardants that have proved to be the most effective ones. Although they cause significant pollution and damage to the environment, they are currently used in synthetic resins. Still dominant.