The invention discloses a high-fluidity injection-molded sintered nickel-zinc ferrite granular material and a preparation method thereof. A hydrolyzable coupling agent KH550 is added to a soluble composite wax, and the coupling agent is dispersed in the wax while hydrolyzing. The hydrolysis and drying processes of coupling agent KH560 are precisely controlled, so that KH560 is hydrolyzed and bonded to the surface of nickel-zinc ferrite magnetic powder while reducing self-polymerization, thereby obtaining surface-modified nickel-zinc ferrite magnetic powder. In the subsequent mixing and extrusion process, the modified ferrite powder has better compatibility with the soluble modified composite wax, and both are dispersed in high-density polyethylene as a compatible system, forming a tightly bonded whole. The obtained injection-molded nickel-zinc ferrite composite material has high density and fluidity.
Country Code: CN
Application Number: CN202110181746.7
