New development trend of surface modification of ATH

When aluminum hydroxide is used as flame retardant filler, its content and particle size have an effect on the flame retardant and physical properties of the material. The flame retardant effect increases with the increase of the content, and when the content is more than 60%, the oxygen index rises sharply. Generally, when the content is added to a certain amount, the flame retardant effect increases with the decrease of particle size. The finer the particle size, the better the flame retardant effect, that is, the particle size directly affects the flame retardant effect. In order to improve its flame retardant performance, better wave flame retardant effect, and reduce the influence on the mechanical properties of the material when the addition amount increases, its super-refinement and nanometer are the new development trend of inorganic flame retardants. Some new varieties of aluminum hydroxide have been developed by means of super refinement of solid particles, surface-active treatment and improvement of the purity of aluminum hydroxide. The new nanometer aluminum hydroxide developed by Beijing University of Chemical Technology (BCUT), Ministry of Education High Gravitation Engineering Research Center, can be widely used in electrical, wire, cable, daily necessities, construction materials, transportation and other plastics and rubber products which can be used in ATH and engineering plastics (aviation materials, military ships, etc.) which can not be used in ATH.