Chemical modification of iron particles in mechanical activation with polydienes

Abstract

Ultrafine iron particles prepared via mechanical activation in a planetary ball mill in polydiene solutions with surface-active substances (SASs) are studied in this work. It is shown that carbides are disposed in the particle bulk, whereas an organic layer with modified (oxidized) polymer molecules and SASs is formed at the surface of particles. Adsorption of polydienes on the particle surface is due to alcohol and carboxyl groups. It is established that modification of iron particles with polybutadiene leads to the formation of a polymeric film with a maximum protective effect.