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Epoxy resin composition, prepreg, and fiber-reinforced composite material

A technology of epoxy resin and composition, which is applied in the fields of epoxy resin composition, prepreg and fiber reinforced composite material, can solve the problem of insufficient mechanical properties of fiber reinforced composite material, failure to confirm the improvement effect of blending block copolymer, Insufficient plastic deformation ability, etc., to achieve the effect of excellent static strength characteristics, high toughness, and high plastic deformation ability

Active Publication Date: 2010-03-24
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned composition has insufficient plastic deformability because the crosslink density is too high, and the improvement effect of adding a block copolymer has not been confirmed. Insufficient mechanical properties of the material
In addition, when the curing agent dicyandiamide, which is suitable for prepreg molding of fiber-reinforced composite materials with high performance and high plastic deformation ability, is used in combination with amine-type epoxy resin, the compounded block copolymer The material forms a coarse phase separation structure, and there is a tendency that the mechanical properties are not improved.

Method used

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  • Epoxy resin composition, prepreg, and fiber-reinforced composite material
  • Epoxy resin composition, prepreg, and fiber-reinforced composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0183] As shown in Table 1, using T 0 When MY0500 at 122° C. was used as [1] and “Nanostrength (registered trademark)” E40F was used as [4], the mechanical properties of the tubular body were good, although the phase separation size was slightly coarse.

Embodiment 2

[0185] Except having used "Nanostrength (registered trademark)" M22N as [4], it carried out similarly to Example 1, and prepared the thermosetting resin composition. Compared with Example 1, the phase separation size is finer, and as a result, the amount of resin deflection and resin toughness are improved, and the mechanical properties of the tubular body are also improved.

Embodiment 3

[0187] except use T 0 A thermosetting resin composition was prepared in the same manner as in Example 2 except that ELM100 was 132° C. as [1]. Compared with Examples 1 and 2, the phase separation size is finer, and as a result, the toughness of the resin is greatly improved, and the Charpy impact strength of the tubular body is greatly improved.

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PUM

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Abstract

Disclosed are: a fiber-reinforced composite material having both of excellent static strength properties and excellent impact resistance; and an epoxy resin composition for producing the fiber-reinforced composite material, specifically an epoxy resin composition which enables to produce a cured product having a high elastic modulus, high heat resistance, a high plastic deformation ability and high stiffness. Specifically disclosed are: an epoxy resin composition comprising the following components ¢A! to ¢D!; a prepreg produced by impregnating a fiber base material with the epoxy resin composition; a fiber-reinforced composite material produced by curing the prepreg; and a tubular article produced from the fiber-reinforced composite material. ¢A!: an amine-type epoxy resin: 10 to 60 partsby weight; ¢B!: a bisphenol-type epoxy resin: 40 to 90 parts by weight; ¢C!: dicyandiamide or a derivative thereof: 1 to 10 parts by weight; and ¢D!: at least one block copolymer selected from the group consisting of S-B-M, B-M and M-B-M: 1 to 10 parts by weight.

Description

technical field [0001] The present invention relates to a fiber-reinforced composite material suitable for sports use and general industrial use, a prepreg for obtaining the fiber-reinforced composite material, and an epoxy resin composition suitable for use as a matrix resin thereof. Background technique [0002] Fiber-reinforced composite materials that use carbon fibers and aramid fibers as reinforcing fibers are widely used in structural materials such as aircraft and automobiles, tennis rackets, golf clubs, fishing rods, etc. due to their high specific strength and specific elastic modulus Sports and general industrial uses, etc. The following method can be applied to the manufacturing method of fiber-reinforced composite materials, using a sheet-like intermediate material prepreg obtained by impregnating reinforcing fibers with uncured matrix resin, laminating a plurality of prepregs, and heating and curing them method; and a resin transfer molding (Resin Transfer Mol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/44A01K87/00A63B53/10C08J5/24C08L53/00C08L63/02C08K5/31C08L63/00
CPCA63B59/0037C08L53/02C08L53/00B32B27/04C08L63/00C08L2205/03C08L2205/16A63B49/00C08G59/38A63B53/10C08G59/4014A63B2209/02C08J2363/00C08J5/24B32B27/38A63B59/0029C08L2205/02B32B5/08B32B27/08B32B27/12B32B27/18B32B27/286B32B27/30B32B27/32B32B27/34B32B2260/021B32B2260/046B32B2262/0269B32B2262/101B32B2262/105B32B2262/106B32B2262/14B32B2264/0207B32B2264/10B32B2307/306B32B2307/54B32B2307/558B32B2307/702A63B60/18A63B60/14Y10T428/139Y10T428/1372C08J5/249C08J5/243C08L2666/14C08L2666/02C08L2666/22C08G59/44A63B49/10
Inventor 富冈伸之坂田宏明本田史郎藤原隆行
Owner TORAY IND INC
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