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Resin supply material, method for using reinforcing fibers, preform, and method for producing 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, low mechanical properties of the carrier body, etc., and achieve excellent mechanical properties and excellent handling properties

Active Publication Date: 2017-10-13
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 for using reinforcing fibers, preform, and method for producing fiber-reinforced resin
  • Resin supply material, method for using reinforcing fibers, preform, and method for producing fiber-reinforced resin
  • Resin supply material, method for using reinforcing fibers, preform, and method for producing fiber-reinforced resin

Examples

Experimental program
Comparison scheme
Effect test

reference example 1

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

[0106] Spinning, firing treatment, and surface oxidation treatment are performed from a copolymer containing PAN as the main component to obtain continuous carbon fibers with a total single fiber count of 12,000. The characteristics of this continuous carbon fiber are as follows.

[0107] Single fiber diameter: 7μm

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

[0109] Proportion: 1.8

[0110] Tensile strength: 4600MPa

[0111] Tensile modulus of elasticity: 220GPa

reference example 2

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

[0113] Used "jER (registered trademark)" 1007 (manufactured by Mitsubishi Chemical Co., Ltd.) 40 parts by mass, "jER (registered trademark)" 630 (manufactured by Mitsubishi Chemical Co., Ltd.) 20 parts by mass, and "エピクロン (registered trademark)" 830 ( DIC Co., Ltd. make) 40 parts by mass, DICY7 (manufactured by Mitsubishi Chemical Co., Ltd.) as a curing agent in an amount of 0.9 equivalent to the epoxy groups and active hydrogen groups of all epoxy resin components, and as a curing accelerator 2 parts by mass of DCMU99 (manufactured by Hodogaya Chemical Industry Co., Ltd.) to prepare epoxy resin (1).

reference example 3

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

[0115] 6 parts by mass of "jER (registered trademark)" 630 (manufactured by Mitsubishi Chemical Corporation), 19 parts by mass of "EPON (registered trademark)" 825 (manufactured by Mitsubishi Chemical Corporation), and diglycidyl aniline (Nippon Kayaku) (Made by Co., Ltd.) 15 parts by mass, "Kanaes (registered trademark)" MX-416 (made by Co., Ltd.) 60 parts by mass, and "jERキュア (registered trademark)" W 31 parts by mass as a curing agent as a curing accelerator 1 part by mass of DIC-TBC (manufactured by DIC Co., Ltd.) to prepare an epoxy resin (2).

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Abstract

This resin supply material is for use in the molding of a fiber-reinforced resin. The resin supply material comprises reinforcing fibers and a resin, the fiber content by weight Wfi of the reinforcing fibers as represented by formula (I) is 30% or less, and / or the fiber content by volume Vfi of the reinforcing fibers as represented by formula (II) is 20% or less. Formula (I): Wfi = Wf1 / (Wf1 + Wr1) * 100 (%), wherein Wf1 is the fiber weight (g) within the resin supply material and Wr1 is the resin weight (g) within the resin supply material. Formula (II): Vfi = Vf1 / Vp1 * 100 (%), wherein Vf1 is the fiber volume (mm3) within the resin supply material and Vp1 is the volume (mm3) of the resin supply material.

Description

Technical field [0001] The present invention relates to a resin supply material, a method of using reinforcing fibers, a preform, and a method of manufacturing fiber reinforced resin. Background technique [0002] Fiber-reinforced resins are widely used in aircraft, automobiles, sports and other applications due to their excellent specific strength and specific stiffness. In particular, in industrial applications such as automobiles and sports, the demand for high-speed molding of fiber-reinforced resins has increased. [0003] High-speed molding methods of fiber-reinforced resin include RTM (resin transfer molding) method (Patent Document 1) and RFI (resin film infusion) method (Patent Document 2). In the RTM method, first, a preform obtained by forming a dry base material (reinforced fiber base material without resin) into a predetermined shape is produced, placed in a mold, and a low-viscosity liquid thermosetting resin is injected into the mold. Inside, it is heated and solid...

Claims

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Application Information

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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