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Prepreg, fiber-reinforced composite material, and resin composition containing particles

A resin composition and prepreg technology are applied in the field of fiber-reinforced composite materials and prepregs used to obtain the composite materials, which can solve problems such as poor toughness and achieve high glass transition temperature and excellent moisture resistance. and effects of heat resistance, excellent CAI and flexural modulus of elasticity

Active Publication Date: 2015-11-18
JX NIPPON OIL & ENERGY CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although benzoxazine resin has excellent moisture resistance and heat resistance, it has the problem of poor toughness. We focus on compounding epoxy resin and various resin particles to make up for this shortcoming.

Method used

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  • Prepreg, fiber-reinforced composite material, and resin composition containing particles
  • Prepreg, fiber-reinforced composite material, and resin composition containing particles
  • Prepreg, fiber-reinforced composite material, and resin composition containing particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] (Examples 1 to 5, Comparative Example 1)

[0122] For each example and comparative example, the raw materials were heated and mixed at the ratio shown in Table 1 to obtain the first resin composition not containing particles (composition of "No. 1" in the table) and the second resin composition containing particles. (composition of "No. 2" in the table). In addition, the raw material used here is as follows.

[0123] (A) component: benzoxazine resin

[0124] F-a (bisphenol F-aniline type, manufactured by Shikoku Chemical Industry Co., Ltd.)

[0125] P-a (phenol-aniline type, manufactured by Shikoku Chemical Industry Co., Ltd.)

[0126] (B) component: epoxy resin

[0127] "CELLOXIDE" (registered trademark) 2021P (manufactured by Daicel Corporation)

[0128] (C) Component: curing agent

[0129] BPF (9,9-bis(4-hydroxyphenyl)fluorene, manufactured by Osaka Gas Chemicals Co., Ltd.)

[0130] BPC (1,1-bis(4-hydroxyphenyl)cyclohexane, manufactured by Sigma-Aldrich Corpor...

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PUM

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Abstract

A prepreg (10) is provided with: a reinforcing fiber layer (3) that comprises reinforcing fibers (1) and a resin composition (2) that is used to impregnate the area between the reinforcing fibers and that comprises (A) a benzoxazine resin, (B) an epoxy resin, and (C) a curing agent that is represented by formula (C-1); and surface layers (6a, 6b) that are provided on the surface of the reinforcing fiber layer (3) and that comprise (A) the benzoxazine resin, (B) the epoxy resin, (C) the curing agent that is represented by formula (C-1), and (D) polyamide resin particles (4) having an average particle size of 5-50 µm. The polyamide resin particles (4) include polyamide 12 resin particles or polyamide 1010 resin particles. (In formula (C-1), R1, R2, R3, and R4 each represent a hydrogen atom or a hydrocarbon group. When R1, R2, R3, or R4 is a hydrocarbon group, said hydrocarbon group is a straight-chain or a branched alkyl group having a carbon number of 1-4, or the adjacent R1 andR3 or the adjacent R3 and R4 are bonded and form a substituted or unsubstituted aromatic ring having a carbon number of 6-10 or a substituted or unsubstituted alicylic structure having a carbon number of 6-10. x represents 0 or 1.)

Description

technical field [0001] The present invention relates to prepregs, fiber reinforced composites and particle-containing resin compositions for making them. In particular, the present invention relates to a fiber-reinforced composite material for aircraft, ship, automobile, sports, and other general industrial applications, and a prepreg used to obtain the composite material. Background technique [0002] Fiber-reinforced composite materials containing various fibers and matrix resins are widely used in aircraft, ships, automobiles, sporting goods, and other general industrial applications due to their excellent mechanical properties. In recent years, with the accumulation of its use results, the scope of application of fiber reinforced composite materials has been further expanded. [0003] As such fiber-reinforced composite materials, for example, Patent Documents 1 and 2 propose fiber-reinforced composite materials using benzoxazine resins. Although benzoxazine resin has e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/24C08L61/34C08L63/00C08L77/00
CPCC08J5/24C08J2379/04C08J2463/00C08J2477/02C08J2477/06C08K5/13C08K5/357C08L63/00C08L77/02C08L77/06C08G59/621C08G59/24C08K5/353C08L2205/03C08J5/243C08L79/04B32B2262/106B32B2264/0264B32B2270/00B32B2305/076C08J5/042C08J2379/02C08L79/02
Inventor 福田欣弘松本隆之南昌树关根尚之中岛正宪
Owner JX NIPPON OIL & ENERGY CORP
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