The flame retardant principle of transparent flame retardant film depends on the flame retardant used. It is mainly playing a role in the four processes of heat absorption, covering, inhibiting reaction, and suffocation, so that it can absorb more heat before reaching the thermal decomposition temperature, thereby improving its flame retardant performance, or it can play a role in binding water. The characteristic of a large amount of heat absorption when steaming improves its own flame retardant ability. Transparent flame-retardant films generally have a certain range of applications in the fields of electronics and decorative building materials. These fields often involve requirements for fire prevention, so there is a need for fire and flame retardant materials.