Fiber-reinforced foamed material and method of producing it.

摘要

A fiber-reinforced foamed material comprises a foamed body of a resin having a flexural elasticity modulus not smaller than 150 kg/mm<2>, reinforcement fibers, and a bonding component through which the reinforcement fibers are integrated with the foamed body so as to reinforce the foamed body. A method for producing a fiber-reinforced foamed material comprises the steps of: providing a material having a potential foamability; providing a composite fibrous material in the form of composite fibers and/or composite yarns each having a first component and a second component; and allowing the foamable material to foam together with the composite fibers or composite yarns at a temperature 10 DEG C or more higher than the thermal deformation temperature or melting temperature of the first component and 20 DEG C or more lower than the thermal deformation temperature or melting temperature of the second component, whereby the first component is thermally deformed or melted to serve as a bonding component, while the second component remains as a fibrous reinforcement component, the fibrous reinforcement component being integrated with the foamed body through the bonding component so as to reinforce the foamed body.