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Preparation method of low-gummosis carbon fiber prepreg

A technology of carbon fiber prepreg and low-flow glue, which is applied in the field of polymer material preparation, can solve the problems of high-flow glue and other problems, and achieve the effect of low cost, high efficiency and simple preparation method

Inactive Publication Date: 2016-08-24
JIANGSU ZHAOJUN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Purpose of the invention: In order to overcome the problem of high flow glue existing in carbon fiber prepregs in the prior art, the present invention proposes a preparation method of low flow glue carbon fiber prepregs that can increase the strength of the product and the smoothness of the appearance surface

Method used

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  • Preparation method of low-gummosis carbon fiber prepreg

Examples

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Effect test

Embodiment 1

[0023] A method for preparing low-flow glue carbon fiber prepreg, which is prepared by using epoxy resin, curing agent, accelerator and carbon fiber as raw materials, wherein the epoxy resin is composed of liquid epoxy resin and solid epoxy resin. Specific preparation steps as follows:

[0024] (1) Put 33kg of liquid epoxy resin bisphenol A type 128 and 67kg of solid epoxy resin jER4250 in a 500L reaction kettle with a vacuum device, and stir at 150-160℃ for 30 minutes. After the mixing is complete, a mixed solution is obtained. A;

[0025] (2) Add 4 kg of curing agent 100S to the mixed solution A obtained in step (1), stir at 70-80°C for 30 minutes, and stir evenly to obtain a mixed solution B;

[0026] (3) Add 0.7kg of accelerator UR500 to the mixed liquid B obtained in step (2), and stir at 70-80°C for 10 minutes to obtain mixed liquid C, the viscosity of which is 20000-60000cps;

[0027] (4) Take a sample of the above mixture C for mechanical strength test. The sample is cast on ...

Embodiment 2

[0029] A method for preparing low-flow glue carbon fiber prepreg, which is prepared by using epoxy resin, curing agent, accelerator and carbon fiber as raw materials, wherein the epoxy resin is composed of liquid epoxy resin and solid epoxy resin. Specific preparation steps as follows:

[0030] (1) Put 33kg of liquid epoxy resin bisphenol A type 128 and 67kg of solid epoxy resin jER4250 in a 500L reaction kettle with a vacuum device, and stir at 150-160℃ for 30 minutes. After the mixing is complete, a mixed solution is obtained. A;

[0031] (2) Add 4 kg of curing agent 100S to the mixed solution A obtained in step (1), stir at 70-80°C for 30 minutes, and stir evenly to obtain a mixed solution B;

[0032] (3) Add 1.5 kg of accelerator UR500 to the mixed liquid B obtained in step (2), and stir at 70-80°C for 10 minutes to obtain mixed liquid C, the viscosity of which is 20000-60000cps;

[0033] (4) Take a sample of the above mixture C for mechanical strength test. The sample is cast on...

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Abstract

The invention discloses a preparation method of a low-gummosis carbon fiber prepreg. The prepreg is prepared from an epoxy resin, a curing agent, an accelerator and carbon fibers. On the basis of the characteristics of low flowability and the like of the raw material low-gummosis resin in the curing process, the carbon fiber prepreg has the characteristic of low gummosis in the carbon fiber prepreg use process under the assisted synergistic actions of the proper curing agent and accelerator. The preparation method of the low-gummosis carbon fiber prepreg is simple, and has the characteristics of high efficiency, low cost and huge industrial production potential. The product has the characteristics of high strength and smooth appearance.

Description

Technical field [0001] The invention relates to the technical field of polymer material preparation, in particular to a method for preparing a low-flow glue carbon fiber prepreg. Background technique [0002] Carbon fiber prepreg is a composite material made of carbon fiber yarn, epoxy resin and other materials through coating, hot pressing, cooling, laminating, coiling and other processes, also known as carbon fiber prepreg; It is called prepreg because it is only the initial impregnation of resin and carbon fiber, and it is the final impregnation when the product is formed. Carbon fiber prepreg is widely used in fishing tackle, sports equipment, sporting goods, aerospace and other fields. , The smoothness of appearance generally has higher requirements. [0003] In the application process of carbon fiber prepreg, especially for blowing, molding and other processes, the amount of glue flow of carbon fiber prepreg will directly affect the strength and appearance of its products, a...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K7/06
CPCC08L63/00C08L2205/025C08K7/06
Inventor 鲁平才赵钎杨智明
Owner JIANGSU ZHAOJUN NEW MATERIAL CO LTD