NANOPARTICLES HAVING FLAME RETARDANCY AND METHOD FOR PREPARATION THEREOF

摘要

Nanoparticles having flame retardancy and a preparation method thereof are provided to ensure excellent fire retardancy while maintaining the stabilized property of resin. Nanoparticles having flame retardancy has a structure that a phosphorus compound is chemically bonded on the surface of nano particles by reacting (A) colloidal nano particles having -OH on the surface and (B) a phosphorus compound having at least one functional group capable of being chemically bonded with the -OH group. The average particle diameter of the colloidal nano particles(A) is 1~300 nm, the surface area is 1~1000 m^2 / g, the number of -OH of the particle surface is 101~107 per a particle and pH is 1~12.