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Resin supply material, method of using reinforcing fiber, preform, and method of manufacturing fiber-reinforced resin

A fiber-reinforced resin and fiber-reinforced technology, applied in the field of resin supply materials, can solve the problems of narrow applicable viscosity range, lack of physical properties, and low mechanical properties of the carrier tape, and achieve the effects of excellent mechanical properties and excellent handling properties.

Active Publication Date: 2020-06-23
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that the desired physical properties cannot be obtained when the carrier is made into a fiber-reinforced resin due to its low mechanical properties and narrow applicable viscosity range.

Method used

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  • Resin supply material, method of using reinforcing fiber, preform, and method of manufacturing fiber-reinforced resin
  • Resin supply material, method of using reinforcing fiber, preform, and method of manufacturing fiber-reinforced resin
  • Resin supply material, method of using reinforcing fiber, preform, and method of manufacturing fiber-reinforced resin

Examples

Experimental program
Comparison scheme
Effect test

reference example 1

[0105] Reference example 1 (reinforcing fiber (carbon fiber))

[0106] Continuous carbon fibers with a total of 12,000 single fibers were obtained from a copolymer mainly composed of PAN by spinning, firing treatment, and surface oxidation treatment. The characteristics of this continuous carbon fiber are as follows.

[0107] Single fiber diameter: 7μm

[0108] Mass per unit length: 0.8g / m

[0109] Specific gravity: 1.8

[0110] Tensile strength: 4600MPa

[0111] Tensile modulus of elasticity: 220GPa

reference example 2

[0112] Reference example 2 (resin (epoxy resin (1)))

[0113] Using 40 parts by mass of "jER (registered trademark)" 1007 (manufactured by Mitsubishi Chemical Corporation), 20 parts by mass of "jER (registered trademark)" 630 (manufactured by Mitsubishi Chemical Corporation), 830 parts by mass of "epicron (registered trademark)" ( DIC Co., Ltd.) 40 parts by mass, DICY7 (manufactured by Mitsubishi Chemical Co., Ltd.) 2 parts by mass of DCMU99 (manufactured by Hodogaya Chemical Industry Co., Ltd.), and an epoxy resin (1) was prepared.

reference example 3

[0114] Reference example 3 (resin (epoxy resin (2)))

[0115] Using "jER (registered trademark)" 630 (manufactured by Mitsubishi Chemical Co., Ltd.) 6 parts by mass, "EPON (registered trademark)" 825 (manufactured by Mitsubishi Chemical Co., Ltd.) 19 parts by mass, diglycidyl aniline (Nippon Kayaku Co., Ltd.) 15 parts by mass, "Kaneise (registered trademark)" MX-416 (manufactured by Kaneka Co., Ltd.) 60 parts by mass, "jER Curve (registered trademark)" W31 parts by mass as a curing agent, as a curing accelerator 1 part by mass of DIC-TBC (manufactured by DIC Corporation) was used to prepare an epoxy resin (2).

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Abstract

The resin supply material according to the present invention is a resin supply material for molding a fiber-reinforced resin, which contains reinforcing fibers and a resin, wherein the fiber weight content Wfi of the aforementioned reinforcing fibers represented by the following formula (I) is 30% or less, And / or the fiber volume fraction Vfi of the aforementioned reinforcing fibers represented by the following formula (II) is 20% or less. Wfi=Wf1 / (Wf1+Wr1)×100(%)...(I) (Wf1: fiber weight (g) in the resin supply material, Wr1: resin weight (g) in the resin supply material) Vfi=Vf1 / Vp1×100(%)...(II)(Vf1: fiber volume in resin supply material (mm 3 ), Vp1: volume of resin supply material (mm 3 )).

Description

technical field [0001] The present invention relates to a resin supply material, a method for using a reinforcing fiber, a preform, and a method for producing a fiber-reinforced resin. Background technique [0002] Fiber-reinforced resins are widely used in aircraft, automobiles, sports and other purposes due to their excellent specific strength and specific stiffness. In particular, in industrial applications such as automobiles and sports, there is an increasing demand for high-speed molding processes of fiber-reinforced resins. [0003] High-speed molding methods for fiber-reinforced resins include RTM (resin transfer molding, resin transfer molding) method (Patent Document 1), and RFI (resin film infusion, resin film infiltration) method (Patent Document 2). In the RTM method, first, a preform formed by forming a dry base material (reinforcing fiber base material not containing resin) into a predetermined shape is manufactured, placed in a mold, and a low-viscosity liqu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/04B29C43/18B29C43/34B32B5/24C08J5/04B29K101/10B29K105/08B29L9/00
CPCC08J5/042B32B27/06B32B27/12B32B5/02B32B27/32B32B27/34B32B27/36B32B27/20B32B27/04B32B27/22B32B33/00B29C70/54B29C70/48B29B11/16B32B2260/046B32B2260/021B32B2262/106B32B2605/18B32B2457/00C08J2363/00C08J2323/06C08J2377/00C08J2323/12C08J5/04B29C70/465B29B7/90B32B27/18C08J2300/00B29C70/42B29K2063/00B29K2101/12
Inventor 竹原大洋清家聪本间雅登松尾里美
Owner TORAY IND INC