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A storage-resistant epoxy carbon fiber prepreg and preparation method thereof

A technology of carbon fiber prepreg and epoxy resin, which is applied in the field of polymer materials, can solve the problems affecting the use of carbon fiber prepreg and short storage period, and achieve improved thermal oxygen resistance and ultraviolet radiation resistance, good stability, easy to disperse effect

Active Publication Date: 2019-03-29
JIANGSU ZHAOJUN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing carbon fiber / resin-based composite materials have a short storage period at room temperature, which seriously affects the wider application of carbon fiber prepregs. Therefore, it is necessary to develop epoxy resin composite materials that can be stored for a long time at room temperature

Method used

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  • A storage-resistant epoxy carbon fiber prepreg and preparation method thereof
  • A storage-resistant epoxy carbon fiber prepreg and preparation method thereof
  • A storage-resistant epoxy carbon fiber prepreg and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Put 670 grams of solid epoxy resin 901 and 330 grams of liquid epoxy resin in a 2000 ml glass flask with a vacuum device, and stir at 120°C for 30 minutes to obtain solution A, which is directly used in the next reaction;

[0032] 2) Add 50 grams of curing agent dicyandiamide 100S to solution A in the previous step, and stir at 70°C for 30 minutes to obtain mixture B.

[0033] 3) Add 8 grams of accelerator UR500 to the mixture B in the previous step, and stir at 70°C for 10 minutes to obtain mixture C.

[0034] 4) Put the mixture C of the previous step, 30 grams of stabilizer ICAM-8401 and 4 grams of antioxidant V85-P in a 2000 ml glass flask with a vacuum device, and stir at 70°C for 20 minutes to obtain solution D;

[0035] Put the solution D in the gluing machine at 70°C, detect the thickness of the film or the surface density of the film with an infrared instrument, and lower the temperature of the film through the cooling plate to reduce its curing degree to pre...

Embodiment 2

[0037] No stabilizer ICAM-8401 was added, and the rest were the same as in Example 1.

[0038] 1) Put 670 grams of solid epoxy resin 901 and 330 grams of liquid epoxy resin in a 2000 ml glass flask with a vacuum device, and stir at 120 ° C for 30 minutes to obtain solution A, which is directly used in the next reaction;

[0039] 2) Add 50 grams of curing agent dicyandiamide 100S to solution A in the previous step, and stir at 70°C for 30 minutes to obtain mixture B.

[0040] 3) Add 8 grams of accelerator UR500 to the mixture B in the previous step, and stir at 70°C for 10 minutes to obtain mixture C.

[0041] 4) Put the mixture C of the previous step and 4 grams of antioxidant V85-P in a 2000 ml glass flask with a vacuum device, and stir at 70°C for 20 minutes to obtain solution D;

[0042] Put the solution D in the gluing machine at 70°C, detect the thickness of the film or the surface density of the film with an infrared instrument, and lower the temperature of the film thr...

Embodiment 3

[0044] No antioxidant V85-P was added, and the rest were the same as in Example 1.

[0045] 1) Put 670 grams of solid epoxy resin 901 and 330 grams of liquid epoxy resin in a 2000 ml glass flask with a vacuum device, and stir at 120 ° C for 30 minutes to obtain solution A, which is directly used in the next reaction;

[0046] 2) Add 50 grams of curing agent dicyandiamide 100S to solution A in the previous step, and stir at 70°C for 30 minutes to obtain mixture B.

[0047] 3) Add 8 grams of accelerator UR500 to the mixture B in the previous step, and stir at 70°C for 10 minutes to obtain mixture C.

[0048] 4) Put the mixture C of the previous step and 40 grams of stabilizer ICAM-8401 in a 2000 ml glass flask with a vacuum device, and stir at 70°C for 20 minutes to obtain solution D;

[0049] Put the solution D in the gluing machine at 70°C, detect the thickness of the film or the surface density of the film with an infrared instrument, and lower the temperature of the film th...

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Abstract

The invention discloses epoxy resin and carbon fiber prepreg with storage stability and a method for preparing the epoxy resin and carbon fiber prepreg. The epoxy resin and carbon fiber prepreg comprises, by weight, 100 parts of epoxy resin, 4-5 parts of curing agents, 8-9 parts of accelerators, 0.3-0.5 part of antioxidants V85-P and 30-40 parts of stabilizers ICAM-8401. The epoxy resin comprises solid epoxy resin and liquid epoxy resin according to a mass ratio of 1.8-2.2:1. The epoxy resin and carbon fiber prepreg with the storage stability and the method have the advantage that the epoxy resin and carbon fiber prepreg is excellent in heat resistance and ultraviolet resistance.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a storage-resistant epoxy resin carbon fiber prepreg and a preparation method thereof. Background technique [0002] Carbon fiber / resin matrix composite material has a series of excellent properties such as high specific strength, high specific modulus, corrosion resistance, ablation resistance, fatigue resistance and dimensional stability. It is one of the representatives of carbon fiber composite materials and has been successfully used in aviation and aerospace. Structural components and ablative heat-resistant components in the field have become irreplaceable important strategic materials. As one of the important matrix materials in resin-based composite materials, epoxy resin has a series of advantages such as good adhesion, heat resistance, chemical corrosion resistance, high strength and convenient processing. [0003] The existing carbon fiber / resin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K7/06C08J5/24
CPCC08J5/24C08J2463/00C08L63/00C08L2205/025C08K7/06
Inventor 鲁平才赵钎陈伟
Owner JIANGSU ZHAOJUN NEW MATERIAL CO LTD
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