Reinforced fiber bundle base material and manufacturing method thereof, and fiber-reinforced thermoplastic resin material using same and manufacturing method thereof

A thermoplastic resin and reinforced fiber technology, applied in carbon fiber, fiber treatment, non-woven fabrics, etc., can solve the problems of thermoplastic resins such as reduced FRTP mechanical properties, high melt viscosity, and low FRTP productivity, and achieve excellent unwinding, high Effect of Width Precision
CN111565902BActive Publication Date: 2022-06-28TORAY IND INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TORAY IND INC
Publication Date
2022-06-28

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Abstract

A reinforcing fiber bundle base material, wherein a sizing agent containing at least a polyamide-based resin is attached to the surface of the reinforcing fiber, and the number of fibers per unit width contained in the reinforcing fiber bundle is 600 or more per mm and less than 1,600 / mm, and the drape value of the reinforcing fiber bundle is not less than 120 mm and not more than 240 mm. Also, a method for producing a reinforcing fiber bundle base material, a fiber-reinforced thermoplastic resin material using a reinforcing fiber bundle base material, and a method for producing the same. We provide reinforced fiber bundle base materials with excellent shape stability and impregnation properties that can be applied to various molding methods such as fiber placement and fiber-reinforced thermoplastic resin molding materials.
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Description

technical field

[0001] The present invention relates to a reinforcing fiber bundle base material excellent in handleability, less fluff, morphological stability, and further excellent in impregnation properties, and a method for producing the same. Background technique

[0002] Fiber-reinforced resin (FRP) obtained by impregnating reinforcing fibers with matrix resin satisfies required properties such as excellent mechanical properties and light weight, and is therefore mainly used for aviation, aerospace, and sports applications. As a typical production method thereof, an autoclave molding method is known. In this molding method, a prepreg obtained by impregnating a reinforcing fiber bundle group with a matrix resin in advance is stacked on a molding die, and heated and pressurized in an autoclave to shape FRP. When a prepreg is used, there is an advantage that a highly reliable FRP can be obtained, but there is a problem of high cost in manufacturing.

[0003] On the oth...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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