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Carbon fiber polyamide prepreg preparation device and preparation method thereof

A technology for preparing equipment and carbon fiber, which is applied in the direction of coating, etc., can solve the problems of weak bonding ability of resin and carbon fiber, large porosity of coating machine coating, and toxicity of solution, and achieve strong adhesion, small porosity, and no Effects of Environmental Pollution

Inactive Publication Date: 2018-07-24
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has cumbersome steps and low production efficiency, and the prepared solution is toxic, causing great pollution to the environment, and the use of a paste coater to coat the porosity is relatively large, and the bonding ability of resin and carbon fiber is weak

Method used

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  • Carbon fiber polyamide prepreg preparation device and preparation method thereof
  • Carbon fiber polyamide prepreg preparation device and preparation method thereof
  • Carbon fiber polyamide prepreg preparation device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Depend on figure 1 As shown, the present invention provides a carbon fiber polyamide prepreg preparation device, which is sequentially provided with a carbon fiber pulley 1, a first tension pulley 2, a first infrared heater 3, a first U-shaped molten resin from left to right Nozzle 4, second infrared heater 5, second U-shaped molten resin nozzle 6, second tension wheel 7, third infrared heater 8, first heating roller 9, fourth infrared heater 10, second heating roller 11. The third tensioning wheel 12, the fourth tensioning wheel 13, the cooling roller 14, the press 15 and the conveyor belt 16, the driving roller 17; the first tensioning wheel 2, the first U-shaped molten resin nozzle 4, the second U Type molten resin nozzle 6 and the second tensioning wheel 7 are arranged in an N shape; the first heating roller 9, the second heating roller 11, and the cooling roller 14 are all composed of a pair of rollers arranged side by side in the opposite direction of rotation; T...

Embodiment 2

[0034] The present invention provides a kind of carbon fiber polyamide prepreg preparation method, adopts the preparation device of embodiment 1, and the steps are as follows:

[0035] (1) Carbon fiber pretreatment: wash the carbon fiber with tetrahydrofuran solvent, then dry it under vacuum at 60°C for 12 hours, and finally put it into a reflux device with tetrahydrofuran for reflux treatment for 24 hours, and then put it into 60°C Vacuum drying for 12 hours to obtain Carbon fiber with sizing agent; put the carbon fiber without sizing agent into a nitric acid solution with a concentration of 15.2mol / L, keep it at 60°C for 40min, take it out and wash it with tetrahydrofuran, put it in a vacuum at 40°C for 12h, and complete Surface treatment of carbon fiber; finally get pre-treated carbon fiber;

[0036] (2) Preparation of molten resin: After uniformly mixing polyamide and polyphenylene ether grafted maleic anhydride in a weight ratio of 6:4, add the first U-shaped molten resin...

Embodiment 3

[0042] The present invention provides a kind of carbon fiber polyamide prepreg preparation method, adopts the preparation device of embodiment 1, and the steps are as follows:

[0043] (1) Carbon fiber pretreatment: wash the carbon fiber with tetrahydrofuran solvent, then dry it under vacuum at 60°C for 12 hours, and finally put it into a reflux device with tetrahydrofuran for reflux treatment for 24 hours, and then put it into 60°C Vacuum drying for 12 hours to obtain Carbon fiber with sizing agent; put the carbon fiber without sizing agent into a nitric acid solution with a concentration of 15.2mol / L, keep it at 60°C for 40min, take it out and wash it with tetrahydrofuran, put it in a vacuum at 40°C for 12h, and complete Surface treatment of carbon fiber; finally get pre-treated carbon fiber;

[0044](2) Preparation of molten resin: After uniformly mixing polyamide and polyphenylene ether grafted maleic anhydride in a weight ratio of 6:4, add the first U-shaped molten resin ...

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Abstract

The invention provides a carbon fiber polyamide prepreg preparation device and a preparation method thereof and solves the technical problems that existing equipment has the problems of complex steps, environmental pollution and low heating and producing efficiency, and resin and carbon fiber are uneven in adhesion and further has weaker combining capacity and larger porosity and the like. The carbon fiber polyamide prepreg preparation device is sequentially provided with a carbon fiber belt wheel, a first tension wheel, a first infrared heater, a first U-shaped molten resin spray head, a second infrared heater, a second U-shaped molten resin spray head, a second tension wheel, a third infrared heater, a first heating roller, a fourth infrared heater, a second heating roller, a third tension wheel, a fourth tension wheel, a cooling roller, a press machine, a conveyer belt and a transmission roller from left to right. Furthermore, the invention provides carbon fiber pretreatment, molten resin preparation and carbon fiber traction and fixation and the like. The carbon fiber polyamide prepreg preparation method can be widely applied to the field of carbon fiber resin based compositematerials.

Description

technical field [0001] The invention relates to the field of carbon fiber resin-based composite materials, in particular to a carbon fiber polyamide prepreg preparation device and a preparation method thereof. Background technique [0002] Carbon fiber is a new type of fiber material with a carbon content of more than 90%. It has the characteristics of high strength, high elastic modulus, high fiber modulus, low density and good flexibility, making its strength much higher than that of steel, but its quality is lower. Less than a quarter of steel. With its excellent characteristics, carbon fiber has played a huge role in both military and civilian fields. As the main material of body armor in the military, it not only ensures the strength but also greatly reduces the quality. It is often used to make safety belts in civilian use. It is light, soft and has high tensile strength. While ensuring comfort, safety is also taken into account. [0003] Carbon fiber has many advant...

Claims

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Application Information

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IPC IPC(8): B29B15/12
CPCB29B15/127
Inventor 王丽戚桂铭宋波马馨淙
Owner SHANDONG UNIV
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