An object is to provide a composite material manufacturing method for improving interlayer strength. The present disclosure provides a composite material manufacturing method of laminating a plurality of prepregs (10) formed of a fiber reinforced base material impregnated with an uncured matrix resin and performing hot molding, the method including: using the prepregs (10) each provided with a gap layer (12) that does not contain a resin and is continuous in an in-plane direction and resin layers (11a, 11b) disposed on both surfaces of the gap layer; disposing a plurality of short fibers (13) on facing surfaces of the prepregs (10) that are adjacent to each other; and evacuating the laminated prepregs (10) to degas the gap layer (12) and then performing hot molding.

An object is to provide a composite material manufacturing method for improving interlayer strength. The present disclosure provides a composite material manufacturing method of laminating a plurality of prepregs (10) formed of a fiber reinforced base material impregnated with an uncured matrix resin and performing hot molding, the method including: using the prepregs (10) each provided with a gap layer (12) that does not contain a resin and is continuous in an in-plane direction and resin layers (11a, 11b) disposed on both surfaces of the gap layer; disposing a plurality of short fibers (13) on facing surfaces of the prepregs (10) that are adjacent to each other; and evacuating the laminated prepregs (10) to degas the gap layer (12) and then performing hot molding.

Provided is a method of manufacturing a FRP product that is obtained by integrally curing a prepreg where fibers are arranged in a specific direction, such as a unidirectional prepreg, a cloth prepreg, or a tow prepreg and a chopped fiber prepreg, such as a sheet molding compound, in which disorder of fiber arrangement in a portion obtained by curing the prepreg is suppressed to obtain an expected strength.

Provided is a method of manufacturing a FRP product that is obtained by integrally curing a prepreg where fibers are arranged in a specific direction, such as a unidirectional prepreg, a cloth prepreg, or a tow prepreg and a chopped fiber prepreg, such as a sheet molding compound, in which disorder of fiber arrangement in a portion obtained by curing the prepreg is suppressed to obtain an expected strength.

A panel structure (10A) includes a substrate portion (11) and at least two ribs (12) standing on the substrate portion (11) and intersecting with each other. A substrate material portion (24) constituting the substrate portion (11) is formed by using at least matrix resin. Continuous fibers or slit continuous fibers are arranged at a position corresponding to the ribs (12) and a rib intersecting portion (13).

A plant fiber-containing composite resin molded article contains a base resin, plant fibers, and, a dispersant, in which each of the plant fibers contains an aroma component, the base resin is a crystalline resin, and in a case where a total content of the base resin, the plant fibers, and the dispersant is 100% by mass, a content of the plant fibers is more than or equal to 50% by mass and less than or equal to 90% by mass.

A plant fiber-containing composite resin molded article contains a base resin, plant fibers, and, a dispersant, in which each of the plant fibers contains an aroma component, the base resin is a crystalline resin, and in a case where a total content of the base resin, the plant fibers, and the dispersant is 100% by mass, a content of the plant fibers is more than or equal to 50% by mass and less than or equal to 90% by mass.

Disclosed in the present invention is a microfiber high-energy implantation device for manufacturing three-dimensional carbon fiber reinforced composites, wherein the device comprises: a micro fiber feeding module, a micro fiber orientation arrangement module, a micro fiber electrifying module, a micro fiber accelerator injection module, a vacuum generator module, a high-voltage electrostatic acceleration module, an accelerator bunching module, and a micro fiber extraction control module. The present invention uses the large scale micro fibers subjected to charging treatment and reaching scale requirement of the target charge-mass ratio as the fiber source for high-energy implantation, and uses the high-voltage electrostatic acceleration electric field to accelerate and energize the array large-scale micro fibers which are uniformly and directionally arranged, so that the speed and energy thereof can meet the implantation requirement. The output kinetic energy of the micro fibers is used to inject them into the target reinforcement area of the prepreg of the two-dimensional laminate structure to realize the fabrication of three-dimensional carbon fiber reinforced composites.

Disclosed in the present invention is a microfiber high-energy implantation device for manufacturing three-dimensional carbon fiber reinforced composites, wherein the device comprises: a micro fiber feeding module, a micro fiber orientation arrangement module, a micro fiber electrifying module, a micro fiber accelerator injection module, a vacuum generator module, a high-voltage electrostatic acceleration module, an accelerator bunching module, and a micro fiber extraction control module. The present invention uses the large scale micro fibers subjected to charging treatment and reaching scale requirement of the target charge-mass ratio as the fiber source for high-energy implantation, and uses the high-voltage electrostatic acceleration electric field to accelerate and energize the array large-scale micro fibers which are uniformly and directionally arranged, so that the speed and energy thereof can meet the implantation requirement. The output kinetic energy of the micro fibers is used to inject them into the target reinforcement area of the prepreg of the two-dimensional laminate structure to realize the fabrication of three-dimensional carbon fiber reinforced composites.

A resin member is formed from a resin material containing filler and an insulating base polymer as a main component. The resin member includes an alignment layer close to a surface of the resin member. The alignment layer includes the filler aligned in the surface direction and the base polymer filling the space between pieces of the filler. The alignment layer includes a carbonized portion that is carbonized matter of the base polymer, contains graphite, and provides electrical conductivity and thermal conductivity.