FIBER REINFORCED POLYMER COMPOSITE WITH A HARD INTERPHASE

摘要

A fiber reinforced polymer composition is provided comprising a fiber and an adhesive composition, wherein the adhesive composition comprises at least a thermosetting resin, a curing agent, and a hard interfacial material. When cured, the adhesive composition forms good bonds to the reinforcing fiber, and an interfacial region between the reinforcing fiber and the adhesive composition is formed which comprises the hard interfacial material. Additional embodiments include a prepreg and a method of manufacturing a composite article by curing the adhesive composition and the reinforcing fiber.

主权项

1. A fiber reinforced polymer composition comprising a reinforcing fiber and an adhesive composition, wherein the adhesive composition comprises at least a thermosetting resin, a curing agent and an interfacial material having at least a component with a glass transition temperature (Tg) of at least −50° C., wherein a surface of the interfacial material comprises at least a functional group compatible with the reinforcing fiber, wherein the reinforcing fiber is suitable for concentrating the interfacial material in an interfacial region between the reinforcing fiber and the adhesive composition, wherein the interfacial region comprises an adhesion layer and a hard layer, the adhesion layer is closer to the reinforcing fiber than the hard layer and has a composition different from the composition of the hard layer, and wherein the hard layer comprises at least the interfacial material.