Abstract: A molding provided with a sheet-shaped composite material section formed from a fiber-reinforced composite material containing reinforcing fibers and a matrix resin, and protruding ribs formed directly on a first surface of the composite material section and containing a thermoplastic resin, wherein the ribs intersect with each other on the first surface, and the mean width t, mean height H and the proportion occupied on the first surface are within specified ranges. A manufacturing method for the molding including a composite material section-forming step for forming the composite material section, and a rib-forming step for forming the ribs so as to satisfy the above conditions.

Abstract: Provided is a laminated substrate wherein a sheet-shaped material with a porosity of 50-99% is laminated onto at least one surface of a prepreg substrate which includes a reinforcing fiber and a thermoplastic resin.

Abstract: The purpose of the present invention is to obtain a fiber-reinforced composite material molded article having high adhesive strength in a boundary portion between an insert portion comprising a fiber-reinforced resin substrate and an integrally molded portion molded integrally with the insert portion. A fiber-reinforced composite material molded article (1) containing reinforcing fibers and a thermoplastic resin and being provided with a first layer (23), a second layer (22), and a third layer (21) in this order, the thickness of each layer, the ratio of the total volume of reinforcing fibers (x2) having a fiber length of 3 mm to less than 100 mm with respect to the total volume of reinforcing fibers present in the layer, the ratio of the total volume of reinforcing fibers (y2) having a fiber length of 0.02 mm to less than 3 mm with respect to the total volume of reinforcing fibers present in the layer, and the volume content of fibers in each layer being controlled so as to be in specific ranges.

Abstract: A production method for fiber-reinforced plastic, includes: a step in which a material (A) including a prepreg base material is obtained, said prepreg base material having cuts therein and having a thermoplastic resin impregnated in reinforcing fibers arranged in parallel in one direction; a step in which a pressurizing device is used that applies a substantially uniform pressure in a direction (X) orthogonal to the travel direction of the material (A) and the material (A) is caused to travel in the one direction and is pressurized while being heated to a prescribed temperature (T), an angle (?) of ?20° to 20° being formed between the orthogonal direction (X) and a fiber axial direction (Y) for the reinforcing fibers of the prepreg base material; and a step in which the material (A) pressurized by the pressurizing device is cooled and the fiber-reinforced plastic is obtained.

Abstract: Provided is a laminated substrate wherein a sheet-shaped material with a porosity of 50-99% is laminated onto at least one surface of a prepreg substrate which includes a reinforcing fiber and a thermoplastic resin.

Abstract: Provided is a laminated substrate wherein a sheet-shaped material with a porosity of 50-99% is laminated onto at least one surface of a prepreg substrate which includes a reinforcing fiber and a thermoplastic resin.

Abstract: The purpose of the present invention is to obtain a fiber-reinforced plastic that is capable of controlling anisotropy, has excellent mechanical characteristics, has little variation, has excellent heat resistance, and has good fluidity during forming. A production method for fiber-reinforced plastic, having: a step in which a material (A) (100) including a prepreg base material is obtained, said prepreg base material having cuts therein and having a thermoplastic resin impregnated in reinforcing fibers (110) arranged in parallel in one direction; a step in which a pressurizing device is used that applies a substantially uniform pressure in a direction (X) orthogonal to the travel direction of the material (A) (100) and the material (A) (100) is caused to travel in the one direction and is pressurized while being heated to a prescribed temperature (T), an angle (.theta.) of ?20-20 .degree.

Abstract: A fiber-reinforced plastic producing method capable of easily producing a fiber-reinforced plastic in which swelling and warpage are less likely to occur and of which excellent mechanical characteristics and isotropy are ensured, and a fiber-reinforced plastic in which swelling and warpage are suppressed from occurring. The fiber-reinforced plastic producing method has a step for obtaining a material (A) including a prepreg base material in which a region (B), where reinforcing fibers pulled and aligned in one direction are impregnated with a matrix resin and a plurality of cuts (b) are formed, and a region (C), where a plurality of cuts (c) are formed, are alternately formed in a direction orthogonal to a fiber axis of the reinforcing fiber, a step for hot-pressing the material (A) while moving the material (A) under specific conditions, and a step for cooling the pressed material (A) to obtain the fiber-reinforced plastic.

Abstract: Provided are a carbon fiber thermoplastic resin prepreg which is a carbon fiber prepreg obtained by impregnating a PAN-based carbon fiber in which the average fiber fineness of a single fiber is 1.0 dtex to 2.4 dtex with a thermoplastic resin, wherein the thermoplastic resin satisfies 20?(FM/FS)?40 (where FM: flexural modulus (MPa) of a resin sheet comprising only the thermoplastic resin, and FS: flexural strength (MPa) of the resin sheet), a method for manufacturing the same, and a carbon fiber composite material employing the carbon fiber prepreg.

Abstract: Provided are a carbon fiber thermoplastic resin prepreg which is a carbon fiber prepreg obtained by impregnating a PAN-based carbon fiber in which the average fiber fineness of a single fiber is 1.0 dtex to 2.4 dtex with a thermoplastic resin, wherein the thermoplastic resin satisfies 20?(FM/FS)?40 (where FM: flexural modulus (MPa) of a resin sheet comprising only the thermoplastic resin, and FS: flexural strength (MPa) of the resin sheet), a method for manufacturing the same, and a carbon fiber composite material employing the carbon fiber prepreg.

Abstract: To provide an epoxy-resin composition and prepreg for producing a fiber-reinforced composite material which exhibits excellent curability and has excellent flame retardance and heat resistance, as well as to provide fiber-reinforced composite materials produced using the prepreg and to provide housing for electronic/electrical devices. The epoxy resin composition contains component (A): a phosphorus compound; component (B): an epoxy resin which has at least three epoxy groups in the molecule, and which does not correspond to component (A) nor include component (A); component (C): an epoxy resin curing agent which does not have a urea structure in the molecule; and component (D): a dimethylurea compound represented by formula (a) (in formula (a), “R” is a hydrogen atom or an alkyl group having any number of 1 to 10 carbons).

Abstract: A production method for fiber-reinforced plastic, includes: a step in which a material (A) including a prepreg base material is obtained, said prepreg base material having cuts therein and having a thermoplastic resin impregnated in reinforcing fibers arranged in parallel in one direction; a step in which a pressurizing device is used that applies a substantially uniform pressure in a direction (X) orthogonal to the travel direction of the material (A) and the material (A) is caused to travel in the one direction and is pressurized while being heated to a prescribed temperature (T), an angle (?) of ?20° to 20° being formed between the orthogonal direction (X) and a fiber axial direction (Y) for the reinforcing fibers of the prepreg base material; and a step in which the material (A) pressurized by the pressurizing device is cooled and the fiber-reinforced plastic is obtained.

Abstract: A fiber-reinforced plastic producing method capable of easily producing a fiber-reinforced plastic in which swelling and warpage are less likely to occur and of which excellent mechanical characteristics and isotropy are ensured, and a fiber-reinforced plastic in which swelling and warpage are suppressed from occurring. The fiber-reinforced plastic producing method has a step for obtaining a material (A) including a prepreg base material in which a region (B), where reinforcing fibers pulled and aligned in one direction are impregnated with a matrix resin and a plurality of cuts (b) are formed, and a region (C), where a plurality of cuts (c) are formed, are alternately formed in a direction orthogonal to a fiber axis of the reinforcing fiber, a step for hot-pressing the material (A) while moving the material (A) under specific conditions, and a step for cooling the pressed material (A) to obtain the fiber-reinforced plastic.

Abstract: Provided are a layered substrate that has excellent mechanical properties such as a flexural strength or a flexural modulus applicable to a structural material, the variations in those mechanical properties are small, exhibits excellent formability into a complicated shape, and is able to be molded in a short time, and a method for manufacturing the same. A layered substrate fabricated by layering plural sheets of sheet-shaped prepregs containing a reinforcing fiber oriented in one direction and a thermoplastic matrix resin, wherein the prepreg has a slit penetrating from the front surface to the back surface, each slit is provided so as to intersect with each reinforcing fiber only one time.

Abstract: The purpose of the present invention is to obtain a fiber-reinforced plastic that is capable of controlling anisotropy, has excellent mechanical characteristics, has little variation, has excellent heat resistance, and has good fluidity during forming. A production method for fiber-reinforced plastic, having: a step in which a material (A) (100) including a prepreg base material is obtained, said prepreg base material having cuts therein and having a thermoplastic resin impregnated in reinforcing fibers (110) arranged in parallel in one direction; a step in which a pressurizing device is used that applies a substantially uniform pressure in a direction (X) orthogonal to the travel direction of the material (A) (100) and the material (A) (100) is caused to travel in the one direction and is pressurized while being heated to a prescribed temperature (T), an angle (.theta.) of ?20-20 .degree.

Abstract: A molding provided with a sheet-shaped composite material section formed from a fiber-reinforced composite material containing reinforcing fibers and a matrix resin, and protruding ribs formed directly on a first surface of the composite material section and containing a thermoplastic resin, wherein the ribs intersect with each other on the first surface, and the mean width t, mean height H and the proportion occupied on the first surface are within specified ranges. A manufacturing method for the molding including a composite material section-forming step for forming the composite material section, and a rib-forming step for forming the ribs so as to satisfy the above conditions.

Abstract: The purpose of the present invention is to obtain a fiber-reinforced composite material molded article having high adhesive strength in a boundary portion between an insert portion comprising a fiber-reinforced resin substrate and an integrally molded portion molded integrally with the insert portion. A fiber-reinforced composite material molded article (1) containing reinforcing fibers and a thermoplastic resin and being provided with a first layer (23), a second layer (22), and a third layer (21) in this order, the thickness of each layer, the ratio of the total volume of reinforcing fibers (x2) having a fiber length of 3 mm to less than 100 mm with respect to the total volume of reinforcing fibers present in the layer, the ratio of the total volume of reinforcing fibers (y2) having a fiber length of 0.02 mm to less than 3 mm with respect to the total volume of reinforcing fibers present in the layer, and the volume content of fibers in each layer being controlled so as to be in specific ranges.

Abstract: Provided are a carbon fibre thermoplastic resin prepreg which is a carbon fibre prepreg obtained by impregnating a PAN-based carbon fibre in which the average fibre fineness of a single fibre is 1.0 dtex to 2.4 dtex with a thermoplastic resin, wherein the thermoplastic resin satisfies 20<(FM/FS)<40 (where FM: flexural modulus (MPa) of a resin sheet comprising only the thermoplastic resin, and FS: flexural strength (MPa) of the resin sheet), a method for manufacturing the same, and a carbon fibre composite material employing the carbon fibre prepreg.

Abstract: The purpose of the present invention is to obtain a fiber-reinforced plastic that is capable of controlling anisotropy, has excellent mechanical characteristics, has little variation, has excellent heat resistance, and has good fluidity during forming. A production method for fiber-reinforced plastic, having: a step in which a material (A) (100) including a prepreg base material is obtained, said prepreg base material having cuts therein and having a thermoplastic resin impregnated in reinforcing fibers (110) arranged in parallel in one direction; a step in which a pressurizing device is used that applies a substantially uniform pressure in a direction (X) orthogonal to the travel direction of the material (A) (100) and the material (A) (100) is caused to travel in the one direction and is pressurized while being heated to a prescribed temperature (T), an angle (.theta.) of ?20-20.degree.

Abstract: Provided is a laminated substrate wherein a sheet-shaped material with a porosity of 50-99% is laminated onto at least one surface of a prepreg substrate which includes a reinforcing fiber and a thermoplastic resin.