Method for manufacturing molded article, and composite material
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsNobuhiko Matsumoto, Kousuke Ikeuchi
Life of this patent
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Abstract
To provide a method for manufacturing a novel molded article using a commingled yarn and a composite material using a commingled yarn. The method for manufacturing a molded article, includes disposing a commingled yarn containing a continuous reinforcing fiber and a continuous thermoplastic resin fiber on a part of a surface of a prepreg, the prepreg containing continuous reinforcing fibers paralleling at least unidirectionally, and a thermosetting resin impregnated between the continuous reinforcing fibers, and heat-processing the prepreg with the commingled yarn.
Claims19
A method for manufacturing a molded article, comprising:
- disposing a commingled yarn containing a continuous reinforcing fiber and a continuous thermoplastic resin fiber on a part of a surface of a prepreg, the prepreg containing continuous reinforcing fibers paralleling in at least one direction and a thermosetting resin impregnated between the continuous reinforcing fibers;
- after disposing the commingled yarn, fixing the commingled yarn on the surface of the prepreg by using a thermoplastic resin fiber, and
- heat-processing the prepreg with the commingled yarn after fixing the commingled yarn.
A method for manufacturing a molded article, comprising:
- disposing a commingled yarn containing a continuous reinforcing fiber and a continuous thermoplastic resin fiber on a part of a surface of a prepreg, the prepreg containing continuous reinforcing fibers paralleling in at least one direction and a thermosetting resin impregnated between the continuous reinforcing fibers;
- and
- heat-processing the prepreg with the commingled yarn after fixing the commingled yarn,
- wherein a difference between the glass transition temperature of the thermoplastic resin constituting the continuous thermoplastic resin fiber and a glass transition temperature of the thermosetting resin is from 15 to 200° C.
A method for manufacturing a molded article, comprising:
- disposing a commingled yarn containing a continuous reinforcing fiber and a continuous thermoplastic resin fiber on a part of a surface of a prepreg, the prepreg containing continuous reinforcing fibers paralleling in at least one direction and a thermosetting resin impregnated between the continuous reinforcing fibers;
- and
- heat-processing the prepreg with the commingled yarn after fixing the commingled yarn,
- wherein the continuous thermoplastic resin fiber contained in the commingled yarn comprises a polyamide resin containing a structural unit derived from a diamine and a structural unit derived from a dicarboxylic acid, and 50 mol % or more of the structural unit derived from a diamine is derived from xylylenediamine and 50 mol % or more of the structural unit derived from a dicarboxylic acid is derived from an am-linear aliphatic dicarboxylic acid having from 4 to 20 carbons.
A composite material, comprising a commingled yarn containing a continuous reinforcing fiber and a continuous thermoplastic resin fiber, the commingled yarn being disposed on a part of a surface of a prepreg, the prepreg containing continuous reinforcing fibers paralleling at least unidirectionally and a thermosetting resin impregnated between the continuous reinforcing fibers, wherein the commingled yarn is fixed on the surface of the prepreg by using a thermoplastic resin fiber.
Dependencies are inferred from the claim text.