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Carbon fiber surface treating agent based on graphene oxide and treatment method thereof

A technology of surface treatment agent and treatment method, which is applied in fiber treatment, carbon fiber, textiles and papermaking, etc., can solve the problems of increasing process difficulty and cost, and achieve the effect of retaining mechanical properties, not easy to peel off, and simple process flow

Inactive Publication Date: 2018-05-18
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires amination of carbon fibers and grafting of graphene oxide, which increases the difficulty and cost of the process.

Method used

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  • Carbon fiber surface treating agent based on graphene oxide and treatment method thereof
  • Carbon fiber surface treating agent based on graphene oxide and treatment method thereof
  • Carbon fiber surface treating agent based on graphene oxide and treatment method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Graphene oxide aqueous solution is obtained by the Hummers method, and the degree of oxidation is controlled to realize that the total oxygen-containing group content of graphene oxide is at oxygen atom / carbon atom (O / C)=(1 / 2)-(1 / 10) (atom number ratio). At the same time, ultrasonic dispersion is used to control the number of dispersion layers of the graphene oxide in the acetone solvent to be between 1 and 10 layers. The graphene oxide aqueous solution was suction filtered to remove water, then directly dissolved in the acetone solution, and the precipitate was removed by low-speed centrifugation to obtain the graphene oxide acetone solution as the upper liquid. Control the concentration of the graphene oxide acetone solution to be 6-8 mg / mL.

[0029] 100g epoxy resin is dissolved in 50g acetone solution, and the quality of acetone is 50% of epoxy resin. Under ultrasonic conditions, 30 mL of the graphene oxide acetone solution was added to 150 g of epoxy resin in ace...

Embodiment 2

[0032] Graphene oxide aqueous solution is obtained by the Hummers method, and the degree of oxidation is controlled to realize that the total oxygen-containing group content of graphene oxide is at oxygen atom / carbon atom (O / C)=(1 / 2)-(1 / 10) (atom number ratio). At the same time, ultrasonic dispersion is used to control the number of dispersion layers of the graphene oxide in the acetone solvent to be between 1 and 10 layers. The graphene oxide aqueous solution was suction filtered to remove water, then directly dissolved in the acetone solution, and the precipitate was removed by low-speed centrifugation to obtain the graphene oxide acetone solution as the upper liquid. Control the concentration of the graphene oxide acetone solution to be 6-8 mg / mL.

[0033] 100g epoxy resin is dissolved in 100g acetone solution, and the quality of acetone is 100% of epoxy resin. Under ultrasonic conditions, 125mL of the graphene oxide acetone solution was added to 200g epoxy resin acetone ...

Embodiment 3

[0036]Prepare the graphene oxide aqueous solution by the Hummers method, control the degree of oxidation, and realize that the total content of oxygen-containing groups in graphene oxide is at oxygen atom / carbon atom (O / C)=1 / 2-1 / 10 (atom number ratio) between. At the same time, ultrasonic dispersion is used to control the number of dispersion layers of the graphene oxide in the acetone solvent to be between 1 and 10 layers. The graphene oxide aqueous solution was suction filtered to remove water, then directly dissolved in the acetone solution, and the precipitate was removed by low-speed centrifugation to obtain the graphene oxide acetone solution as the upper liquid. Control the concentration of the graphene oxide acetone solution to be 6-8 mg / mL.

[0037] 100g epoxy resin is dissolved in 150g acetone solution, and the quality of acetone is 150% of epoxy resin. Under ultrasonic conditions, 375mL of the graphene oxide acetone solution was added to 250g epoxy resin acetone s...

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Abstract

The invention discloses a carbon fiber surface treating agent based on graphene oxide and a treatment method thereof and relates to surface treatment of carbon fibers. The carbon fiber surface treating agent based on graphene oxide comprises, by mass, 100 parts of epoxy resin, 50-200 parts of acetone and 0.05-5 parts of graphene oxide. The carbon fibers are used as raw materials, and a solution-type carbon fiber surface treating agent containing graphene oxide with specific oxygen functional group content and dispersing layer number is subjected to secondary starching. On the basis of originalstarching treatment for the carbon fibers, the surfaces of the carbon fibers are subjected to surface treatment similar to secondary starching, a graphene oxide / epoxy resin treating agent layer is formed on the surfaces of the carbon fibers, the aim of improving the interface adhesive performance between the carbon fibers and resin matrixes is achieved, and accordingly the carbon fiber surface treatment method, the carbon fibers and products thereof are convenient to operate, simple in equipment and suitable for industrial production.

Description

technical field [0001] The invention relates to the surface treatment of carbon fibers, in particular to a carbon fiber surface treatment agent based on graphene oxide and a treatment method thereof. Background technique [0002] Carbon fiber-reinforced resin-based composite materials have outstanding light weight, high specific strength, high specific rigidity, excellent fatigue strength, and environmental stability. And the favor of the civilian field. However, due to the structure of carbon fiber itself, the surface activity of carbon fiber is very low, and the interface bonding with the resin matrix is ​​weak, which affects the overall mechanical properties of carbon fiber resin matrix composites, especially the interlayer toughness, transverse Tensile properties and wet heat properties. After the carbon fiber is carbonized or graphitized at high temperature, it needs to go through a sizing process to increase its surface activity and improve the interfacial bonding pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/55D06M11/74C08J5/06C08J5/04D06M101/40
CPCD06M15/55C08J5/042C08J5/06C08J2363/00D06M11/74D06M2101/40
Inventor 胡晓兰代少伟白华张莹王菁菁
Owner XIAMEN UNIV
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