Epoxy resin impact modifier manufacturing method thereof and epoxy resin composition comprising the same

摘要

The present invention relates to an impact modifier comprising a core-shell structure impact modifier latex having a core-shell structure in which a shell surrounding a rubber latex forming a core includes a graft polymer containing a water-soluble vinyl monomer as an essential component, An impact modifier for an epoxy resin having an excellent impact strength without deteriorating extreme glass transition temperature, tensile strength and thermal expansion coefficient, having excellent dispersibility and mutual bonding strength with an epoxy resin by stably increasing the particle size, Wherein the impact modifier having the core-shell structure comprises 30 to 80% by weight of a rubber polymer core; And 20 to 70% by weight of a graft polymer shell obtained by copolymerizing the water-soluble vinyl monomer with the rubber polymer.