Preparing method of high-strength fiber composite material

A high-strength fiber and fiber technology, which is applied in the field of composite material preparation, can solve the problems of poor bonding strength, poor stability, and rising cost of production plants, so as to overcome insufficient resin content, increase compressive performance, and eliminate interlayer air bubbles. Effect

Active Publication Date: 2017-08-25
厦门市中豪强碳纤复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, products made of fiber composite materials, such as rackets, bicycles, drones, etc., must simulate the use environment to do some dynamic strength tests, such as dynamic fatigue test, high-speed shelling test, landing test, impact test, drop test, etc. , due to the rigor of the test, it often occurs that the product fails to pass the test or has poor stability during the test, resulting in an increase in the defective rate of the product or scrapping, and at the same time causing the product supply cycle to be prolonged and delayed entering the market. Manufacturers currently adopt secondary repairs Or the remedial treatment of the finished product, that is, the elongation process increases the labor cost, and at the same time causes some technical indicators of the product to fail to meet the standards, such as: W / B (weight and balance), MOI (power balance), SI (hardness ), RA (rigidity), VIBRATIONFREQUENCY (vibration frequency), etc., directly cause the cost of the production plant to rise, and there is an urgent need to develop a molding process that can increase the strength of fiber composites at a high cost performance
[0003] Chinese invention patent application CN 102660875 A discloses a method for preparing a polymeric film for carbon fiber processing. Wrapping it on the surface of carbon fiber cloth can enhance the strength of the material, but according to the simple wrapping method, its application range is limited and the material stability is poor. Moreover, the bonding strength is not good, and the strength of various dynamic tests may not be satisfactory.

Method used

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  • Preparing method of high-strength fiber composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Making tennis rackets: Cut the polymer film with a thickness of 0.25mm into the required width according to the structure, then wrap the polymer film in the composite material cloth according to the structure, preform according to the frame shape, and send it into the temperature of 150°C Heating on the hot pressing table for 20 minutes, and then cooling with a cooling table at 30°C for 4 minutes. After demoulding, the appearance of the rough embryo is intact, and a high-strength fiber composite is obtained.

[0046] The dynamic strength test--IMPACT impact test was carried out on the prepared high-strength fiber composite material, and it was found that the products were intact after 200 IMPACT tests.

[0047] The test result shows that the fiber composite material prepared by the method of the invention has good strength and durability.

Embodiment 2

[0049] Make a drone; cut the polymer film with a thickness of 0.3mm into the desired width according to the structure, then paste the polymer film on the surface of the composite cloth according to the structure, and send it to a hot press table with a temperature of 130°C for heating 25 minutes, and then cooled with a 30°C cooling table for 4 minutes. After demoulding, the appearance of the rough embryo is intact, the surface is smooth and clean, and there is no defect, that is, a high-strength fiber composite material is obtained.

[0050] The dynamic strength test--GROUND TEST landing test was carried out on the prepared high-strength fiber composite material, and it was found that the surface of the product was intact after 50 GROUND TEST tests.

[0051] The test results show that the fiber composite material prepared by the method of the invention has high strength and wear resistance.

Embodiment 3

[0053] To make a bicycle, cut the polymer film with a thickness of 0.2 mm into the desired width according to the structure, then stick the polymer film on the surface of the composite cloth according to the structure, send it to a hot press table with a temperature of 150 ° C, and heat it for 45 minutes. Then use a cooling table at 30°C to cool for 10 minutes. After demolding, the rough embryo has a complete appearance, a smooth surface, and no defects, that is, a high-strength fiber composite material is obtained.

[0054] The dynamic strength test--FATIGUE TEST landing test was carried out on the prepared high-strength fiber composite material, and it was found that the surface of the product was intact after 32826 tests of FATIGUE TEST.

[0055] The test results show that the strength of the fiber composite prepared by the method of the present invention has been greatly improved.

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Abstract

The invention relates to a preparing method of a high-strength fiber composite material. The preparing method includes the following steps of cutting, rolling, performing, forming and demolding. Fiber composite material cloth in use is at least one of carbon fiber composite material cloth and glass fiber composite material cloth, and a polymeric film in use comprises a high-temperature thermocuring resin film and a high-viscosity polymer composite material. The strength of a product can be effectively promoted after the prepared fiber composite material is formed. The forming process is easy to operate, high in efficiency and low in requirement for the technology of operators, and common personal can implement operation.

Description

technical field [0001] The invention relates to a method for preparing a composite material, in particular to a method for preparing a high-strength fiber composite material. Background technique [0002] At present, products made of fiber composite materials, such as rackets, bicycles, drones, etc., must simulate the use environment to do some dynamic strength tests, such as dynamic fatigue test, high-speed shelling test, landing test, impact test, drop test, etc. , due to the rigor of the test, it often occurs that the product fails to pass the test or has poor stability during the test, resulting in an increase in the defective rate of the product or scrapping, and at the same time causing the product supply cycle to be prolonged and delayed entering the market. Manufacturers currently adopt secondary repairs Or the remedial treatment of the finished product, that is, the elongation process increases the labor cost, and at the same time causes some technical indicators of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/06B32B37/10B32B37/12
CPCB32B37/06B32B37/10B32B37/12
Inventor 蔡锦云官江全谢容泉李步龙李卫平
Owner 厦门市中豪强碳纤复合材料有限公司
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