Forming process of carbon fiber and phenolic resin composite material

A technology of composite materials and phenolic resin, applied in the direction of coating, etc., can solve the problems of inability to exert performance, reduce the interlayer shear strength of composite materials, and decrease the tensile strength, so as to achieve large glue content, reduce porosity, Precise effect of pressure point control

Inactive Publication Date: 2019-06-28
YIXING YITAI CARBON FIBER WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the production process of carbon fiber composite materials, due to various factors, such as impurities in the environment, imperfect process implementation, etc., it is easy to cause a variety of defects. Different defects have more or less influence on the performance of composite materials. Pores are One of the main defects of composite materials, too many pores can reduce the interlayer shear strength of composite materials by 30%, and the tensile strength will drop by about 26%. When it is applied to the preparation of products, it cannot exert its best performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A molding process of carbon fiber and phenolic resin composite material, comprising the steps of:

[0020] 1) Preparation of prepreg: Mix phenolic resin and diluent evenly at a mass ratio of 5:1, and control its viscosity to 2.0 Pa·S. The diluent is acetone or industrial alcohol.

[0021] 2) Coating: uniformly coat prepreg on the surface of carbon fiber material or carbon fiber fabric to form a carbon fiber composite material.

[0022] 3) Make a product cavity mold, and apply a release meter on the surface of the mold.

[0023] 4) The carbon fiber composite material enters the heating guide mechanism through the conveyor belt, and is put into the cavity mold after heating.

[0024] 5) Preheat the cavity mold after closing the mold, and vacuumize the mold at the same time. The preheating temperature is ℃, the preheating time is 3min, and the vacuum degree is -0.1MPa.

[0025] 6) Carry out hot press molding in a vacuum environment at a temperature of 150°C for 12 hours....

Embodiment 2

[0027] A molding process of carbon fiber and phenolic resin composite material, comprising the steps of:

[0028] 1) Preparation of prepreg: Mix phenolic resin and diluent evenly at a mass ratio of 5:1, and control its viscosity to 2.3Pa·S. The diluent is acetone or industrial alcohol.

[0029] 2) Coating: uniformly coat prepreg on the surface of carbon fiber material or carbon fiber fabric to form a carbon fiber composite material.

[0030] 3) Make a product cavity mold, and apply a release meter on the surface of the mold.

[0031] 4) The carbon fiber composite material enters the heating guide mechanism through the conveyor belt, and is put into the cavity mold after heating.

[0032] 5) Preheat the cavity mold after closing the mold, and vacuumize the mold at the same time. The preheating temperature is 67°C and the preheating time is 4 minutes. The vacuum degree is -0.1MPa.

[0033] 6) Carry out hot press molding in a vacuum environment at a temperature of 168°C for 13...

Embodiment 3

[0035] A molding process of carbon fiber and phenolic resin composite material, comprising the steps of:

[0036] 1) Preparation of prepreg: Mix phenolic resin and diluent evenly at a mass ratio of 5:1, and control its viscosity to 2.5Pa·S. The diluent is acetone or industrial alcohol.

[0037] 2) Coating: uniformly coat prepreg on the surface of carbon fiber material or carbon fiber fabric to form a carbon fiber composite material.

[0038] 3) Make a product cavity mold, and apply a release meter on the surface of the mold.

[0039] 4) The carbon fiber composite material enters the heating guide mechanism through the conveyor belt, and is put into the cavity mold after heating.

[0040] 5) Preheat the cavity mold after closing the mold, and at the same time vacuumize the mold. The preheating temperature is 70°C and the preheating time is 5 minutes. The vacuum degree is -0.1MPa.

[0041] 6) Carry out hot press molding in a vacuum environment at a temperature of 200°C for 14...

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PUM

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Abstract

The invention discloses a forming process of a carbon fiber and phenolic resin composite material. The forming process of the carbon fiber and phenolic resin composite material comprises the followingsteps of 1) preparing prepreg; 2) coating; 3) manufacturing a product mold cavity mold, and coating a mold release meter on the surface of the mold; 4) carbon fiber composite material enters a heating guide mechanism through a conveyor belt, and putting the carbon fiber composite material into the mold cavity mold after being heated; 5) pre-heating the mold cavity mold, and vacuumizing the mold at the same time; and 6) carrying out hot press molding in a vacuum environment, and demolding after cooling to obtain a molded product of the carbon fiber and the phenolic resin composite material. According to the forming process of the carbon fiber and phenolic resin composite material, the porosity can be effectively reduced, the operation is simple, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a molding process of carbon fiber and phenolic resin composite materials. Background technique [0002] Carbon fiber is an inorganic high-performance fiber with a carbon content higher than 90%, which is transformed from organic fibers through a series of heat treatments. It is a new material with excellent mechanical properties. It has the inherent characteristics of carbon materials and has the softness of textile fibers. Machinable type, is a new generation of reinforcing fibers. In addition to being used as thermal insulation materials, traditionally used carbon fibers are generally not used alone. They are mostly added to resins, metals, ceramics, concrete and other materials as reinforcing materials to form composite materials, which have been widely used in aerospace, textiles, chemical machinery, Sports equipment, automobile manufacturing and other fields. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/44B29C70/54B29B15/10B29K61/04B29K105/08
Inventor 蒋洪亮
Owner YIXING YITAI CARBON FIBER WEAVING
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