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Nano carbon material reinforced epoxy resin composite material and preparation method thereof

A nano-carbon material and epoxy resin technology, applied in the field of composite materials, can solve problems such as unfavorable nano-devices, high magnetic field strength requirements, and loss of orientation of nano-carbon materials

Inactive Publication Date: 2012-09-19
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since impurities are always generated during the preparation process, and the nano-carbon materials lose their orientation during the purification process, and the nano-carbon materials prepared by this method have structural defects, it is not conducive to making nano-devices
Another type of method is to reorient the prepared carbon nanomaterials in a physical field (liquid or gas flow field, force field, strong magnetic field, electric field). However, the requirements for the strength of the magnetic field are high during the preparation process, which often needs to be carried out in a strong magnetic field, which increases the cost of preparation

Method used

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  • Nano carbon material reinforced epoxy resin composite material and preparation method thereof
  • Nano carbon material reinforced epoxy resin composite material and preparation method thereof
  • Nano carbon material reinforced epoxy resin composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A nano-carbon material-reinforced epoxy resin composite material in this embodiment is composed of the following components in weight percentage: cured epoxy resin and 0.1 wt% of it modified graphene oxide by paramagnetic oligomer. Concrete preparation method is as follows steps:

[0033] 1) 10g of 4-hydroxyl-2,2,6,6-tetramethyl-piperidine-1-oxyl free radicals are dissolved in 90g of methanol, and then slowly added dropwise to 9.5g of ferric chloride by weight Percentage is 10% in the methanol solution, after reacting for 20 hours, the solvent is evaporated to dryness to obtain a complex compound of ferric ion;

[0034] 2) The ferric ion complex compound of 10g is dissolved in 23.3g acetone, then it is slowly added dropwise to 10g molecular weight in the polyester diol that is 1000 (the mol ratio of complex and polyester diol is 3 : 1), stirred and reacted for 20 hours, and the solvent was evaporated to dryness to obtain the trivalent iron complex of polyester diol;

...

Embodiment 2

[0039] A nano-carbon material reinforced epoxy resin composite material in this embodiment is composed of the following components by weight percentage: cured epoxy resin and oxidized carbon nanotubes modified by paramagnetic oligomer accounting for 3% by weight. Concrete preparation method is as follows steps:

[0040] 1) 10g of 4-hydroxyl-2,2,6,6-tetramethyl-piperidine-1-oxyl free radicals are dissolved in 23g of ethanol, and then slowly added dropwise to 9.5g ferric chloride weight Percentage is 30% in the ethanol solution, after reacting for 24 hours, evaporate the solvent to dryness to obtain a complex compound of ferric ion;

[0041] 2) Dissolve 10g of the ferric ion complex compound in 90g of acetone, then slowly add it dropwise to 10g of polyester diol with a molecular weight of 2000 (the molar ratio of complex to polyester diol is 6: 1), stirring and reacting for 24 hours, evaporating the solvent to obtain the trivalent iron complex of polyester diol;

[0042] 3) Add ...

Embodiment 3

[0046] A nano-carbon material reinforced epoxy resin composite material in this embodiment is composed of the following components by weight percentage: cured epoxy resin and graphene oxide modified by paramagnetic oligomer accounting for 5% by weight. Concrete preparation method is as follows steps:

[0047] 1) 1g of 4-hydroxyl-2,2,6,6-tetramethyl-piperidine-1-oxyl free radical is dissolved in 99g of ethanol, and then it is slowly added dropwise to the weight of 0.95g ferric chloride Percentage is 10% in the methanol solution, after reacting for 10 hours, the solvent is evaporated to dryness to obtain a complex compound of ferric ion;

[0048] 2) Dissolve the ferric ion complex compound of 1g in 99g acetone, then slowly add it dropwise to 1g of polyester diol with a molecular weight of 3000 (the molar ratio of complex and polyester diol is 9: 1), stirring and reacting for 10 hours, evaporating the solvent to obtain the trivalent iron complex of polyester diol;

[0049] 3) A...

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Abstract

The invention discloses a preparation method of nano carbon material reinforced epoxy resin composite material, which comprises the steps of: reacting nitrogen and free radicals with ferric iron salt, then reacting with polyester type diol to form oligomer, then reacting with diisocyanate to form isocyanate group-terminated oligomer, carrying out surface modification on nano carbon particles with the oligome, then blending with epoxy resin and curing under the action of magnetic field. According to the epoxy resin composite material, reactive functional groups are introduced to the surface of the nano carbon material and have excellent dispersibility in epoxy resin aggregate, so that the processability of the nano carbon material is greatly improved; and at the same time, the nitrogen and oxygen free radicals are connected by iron ion, so that the nano carbon particles have certain paramagnetism and can realize oriented arrangement in epoxy resin in lower external magnetic field, thereby sufficiently exerting the reinforcing characteristic of the nano carbon material.

Description

technical field [0001] The invention relates to a nano-carbon material reinforced epoxy resin composite material and a preparation method thereof, belonging to the technical field of composite materials. Background technique [0002] Nano-carbon materials (such as carbon nanotubes, graphene, nano-carbon black, etc.) have unique electrical properties, excellent thermal conductivity and strong comprehensive mechanical properties. These excellent properties make nano-carbon materials have many potential uses. Because of their high specific strength and high specific surface area, carbon nanomaterials can be applied to the reinforcement of composite materials, and their good electrical conductivity makes them good materials for the probes of atomic force microscopes and scanning tunneling microscopes; The photoelectric conversion properties could also make light, cheap and efficient solar cells. The strong electron emission characteristics of nano-carbon materials can be used t...

Claims

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Application Information

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IPC IPC(8): C08L63/02C08K9/04C08K3/04
Inventor 赫玉欣刘红宇姚大虎陆昶余华宁
Owner HENAN UNIV OF SCI & TECH
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