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Graphene oxide/carbon nano-tube collaboration-modified glass fiber reinforced epoxy composite material and preparation method thereof

A technology of composite materials and carbon nanotubes, which is applied in the field of preparation of graphene oxide/carbon nanotube modified glass fiber reinforced epoxy resin-based composite materials, can solve the problem of poor stress transfer and carbon nanotube reinforcement effect is not very good Good performance and other issues, to achieve the effect of strengthening the matrix resin, excellent interlayer shear performance, and firm bonding

Inactive Publication Date: 2013-08-21
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the weak interfacial bonding leads to poor stress transfer between the carbon nanotubes and the polymer matrix, so that the reinforcement effect of the carbon nanotubes cannot be well exerted.
However, there is no report on the synergistic modification of glass fiber reinforced epoxy composites by graphene oxide / carbon nanotubes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1) Disperse graphene oxide in ethanol, prepare a graphene oxide ethanol solution with a concentration of 0.01g / L, and then use an ultrasonic device with a power of 1000W to ultrasonically treat the graphite oxide ethanol solution for 0.5 hours to obtain oxidized Graphene ethanol solution;

[0018] 2) adding carbon nanotubes and epoxy resin to the graphene oxide ethanol solution obtained in step 1) to make the concentrations 20g / L and 200g / L respectively to obtain a mixed solution, and stir the mixed solution with a magnetic stirrer for 30 minutes, Then use an ultrasonic device with a power of 1000W to carry out ultrasonic treatment to the mixed solution for 0.5 hours;

[0019] 3) Put the ultrasonically treated mixed solution in step 2) into an oven with a temperature of 80 degrees Celsius, bake for 10 hours, and then use a vacuum pump to extract the ethanol solvent in the mixed solution until the mixed solution has no bubbles;

[0020] 4) Add a chemically equivalent cu...

Embodiment 2

[0023] 1) Dispersing graphene oxide in ethanol, preparing a graphene oxide ethanol solution with a concentration of 1g / L, and then ultrasonically treating the graphite oxide ethanol solution with a power of 300W for 5 hours to obtain graphite oxide Ethanol solution;

[0024] 2) adding carbon nanotubes and epoxy resin to the graphene oxide ethanol solution obtained in step 1) so that the concentration is 19g / L and 200g / L respectively, to obtain a mixed solution, and stir the mixed solution with a magnetic stirrer for 5 minutes, Then use an ultrasonic device with a power of 300W to carry out ultrasonic treatment to the mixed solution for 0.5 hours;

[0025] 3) Put the ultrasonically treated mixed solution in step 2) into an oven with a temperature of 50 degrees Celsius, bake for 48 hours, and then use a vacuum pump to extract the ethanol solvent in the mixed solution until the mixed solution has no bubbles;

[0026] 4) Add a chemically equivalent curing agent to the mixed solut...

Embodiment 3

[0029] 1) Disperse graphene oxide in ethanol, prepare a graphene oxide ethanol solution with a concentration of 0.2g / L, and then use an ultrasonic device with a power of 600W to ultrasonically treat the graphite oxide ethanol solution for 2 hours to obtain oxidized Graphene ethanol solution;

[0030] 2) Add carbon nanotubes and epoxy resin to the graphene oxide ethanol solution obtained in step 1) so that the concentrations are 1.0g / L and 200g / L respectively to obtain a mixed solution, and stir the mixed solution with a magnetic stirrer for 20 minutes , and then use an ultrasonic device with a power of 800W to carry out ultrasonic treatment to the mixed solution for 3 hours;

[0031] 3) Put the ultrasonically treated mixed solution in step 2) into an oven with a temperature of 80 degrees Celsius, bake for 30 hours, and then use a vacuum pump to extract the ethanol solvent in the mixed solution until the mixed solution has no bubbles;

[0032] 4) Add a chemically equivalent cu...

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Abstract

The invention relates to a graphene / carbon nano-tube collaboration-modified glass fiber reinforced epoxy composite material and a preparation method thereof. The composite material comprises an epoxy resin base material and inorganic nanometer filler which is uniformly dispersed in the epoxy resin base material, wherein the composite nanometer inorganic filler is composed of graphene oxide with thickness of 0.35nm-20nm and diameter of 5 microns-100microns and the carbon nano-tube with the diameter of 30nm-50nm and length of 10 microns-20 microns. The graphene / carbon nano-tube collaboration-modified glass fiber reinforced epoxy composite material can be used for effectively improving the mechanical performances of epoxy resin matrix and interface bonding strength between the matrix and the glass fiber by utilizing the excellent mechanical performances and the surface active functional groups of the graphene oxide and the carbon nano-tube, so that the interlayer shearing strength of the glass fiber composite material is effectively improved.

Description

technical field [0001] The invention belongs to the field of preparation of polymer-based composite materials, and in particular relates to a preparation method of graphene oxide / carbon nanotube modified glass fiber reinforced epoxy resin-based composite materials. Background technique [0002] Glass fiber reinforced epoxy-based composite materials have the unique advantages of high specific strength and specific stiffness, strong designability, good fatigue fracture resistance, corrosion resistance, good structural dimensional stability, and easy large-area integral forming. , Important materials that cannot be replaced in national defense construction and technological development, such as bulletproof helmets, bulletproof clothing, helicopter wings, early warning aircraft radome, various high-pressure pressure vessels, civil aircraft straight plates, sporting goods, various high-temperature resistant products and performance Excellent tire cord etc. However, glass fiber r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K7/00C08K3/04C08J5/04
Inventor 沈小军党蕊琼颜志勇敖利民邓丹
Owner JIAXING UNIV
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