(1) The coating is also composed of many components. Therefore, in use, the flame retardant and its composite components are usually mixed with the components forming the coating to form a coating, and then coated on the surface of materials such as steel structures or wooden structures to form a flame retardant coating.
(2) Fibers include chemical fibers such as polyester, polypropylene, acrylic, spandex and natural fibers such as cotton and silk. This chemical fiber can be spun with flame-retardant particles before it is made into fibers. The resulting fiber has a flame retardant function. In addition, flame retardant functionalization can be achieved by finishing fibers and fabrics. The fiber fabric is immersed in the flame retardant finishing liquid. The flame retardant component can react and react with the functional groups on the fiber to combine the flame retardant structure with the fiber, and the flame retardant component can also physically adhere to the fiber. However, due to the weak binding force between the flame retardant component and the fiber, the physically bonded flame retardant component has poor wash resistance. After repeated washing, the flame retardant function of the fiber is lost.
(3) Firewood is a flammable material. But as a natural material, it has the characteristics of environmental protection, regeneration and biodegradation. Impregnation is commonly used for wood flame retardancy. That is to say, through high negative pressure, the air in the wood and the air in the fiber tube are extracted, and then the wood is immersed in the flame retardant liquid, and then the flame retardant component is pressed into the wood, and the flame retardant wood material is formed after drying.