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Preparation method of amination graphene oxide reinforced fibers

A technology for reinforcing fibers and oxide stones, applied in the field of fiber reinforcement, can solve the problems of decreased fiber strength, easy agglomeration, insufficient bonding force between nano-fillers and matrix, and achieve the effect of performance enhancement.

Inactive Publication Date: 2017-03-22
过冬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in the end, it was shown that the bonding force between the nanofiller and the matrix was not strong enough, and it was easy to agglomerate together, resulting in a decrease in fiber strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method of graphene reinforced fiber, comprising:

[0021] (1) Mix the flake graphite of 2 weight parts, the concentrated sulfuric acid of 300 weight parts and the phosphoric acid of 30 weight parts, slowly add the potassium permanganate of 15 weight parts, stir at 45 ℃ for 9 hours;

[0022] (2) At 0° C., add 300 parts by weight of deionized water and 20 parts by weight of hydrogen peroxide at a concentration of 10 wt % to the mixture, and stir for 5 minutes;

[0023] (3) separate and successively wash the product with deionized water, hydrochloric acid of 10wt% concentration and absolute ethanol, and vacuum-dry to obtain graphene oxide;

[0024] (4) Disperse the graphene oxide in 15 parts by weight of N,N-dimethylformamide solution, add 40 parts by weight of SOCl at 0°C 2 , after mixing evenly, the temperature was raised to 65°C, and the stirring was continued for 30 hours;

[0025] (5) Add 1,6 hexamethylenediamine dropwise to the above mixture, stir at ...

Embodiment 2

[0031] A preparation method of graphene reinforced fiber, comprising:

[0032] (1) 5 parts by weight of flake graphite, the concentrated sulfuric acid of 500 parts by weight and the phosphoric acid of 60 parts by weight are mixed uniformly, slowly add the potassium permanganate of 20 parts by weight, and stir at 55 DEG C for 18 hours;

[0033] (2) At 5°C, add 500 parts by weight of deionized water and 50 parts by weight of hydrogen peroxide at a concentration of 30 wt% to the mixture, and stir for 10 minutes;

[0034] (3) separate and wash the product successively with deionized water, 30wt% concentration of hydrochloric acid and absolute ethanol, and vacuum-dry to obtain graphene oxide;

[0035] (4) Disperse the graphene oxide in 20 parts by weight of N,N-dimethylformamide solution, add 60 parts by weight of SOCl at 5°C 2 , after mixing evenly, the temperature was raised to 80°C, and the stirring was continued for 40 hours;

[0036] (5) Add 1,6 hexamethylenediamine dropwise...

Embodiment 3

[0042] A preparation method of graphene reinforced fiber, comprising:

[0043] (1) The flake graphite of 3 weight parts, the concentrated sulfuric acid of 400 weight parts and the phosphoric acid of 50 weight parts are mixed uniformly, slowly add the potassium permanganate of 17 weight parts, stir 12 hours at 50 ℃;

[0044] (2) At 0° C., add 400 parts by weight of deionized water and 30 parts by weight of hydrogen peroxide at a concentration of 20 wt % to the mixture, and stir for 7 minutes;

[0045] (3) separate and wash the product successively with deionized water, hydrochloric acid of 20wt% concentration and absolute ethanol, and vacuum-dry to obtain graphene oxide;

[0046] (4) Disperse the graphene oxide in 16 parts by weight of N,N-dimethylformamide solution, add 50 parts by weight of SOCl at 0°C 2 , after mixing evenly, the temperature was raised to 70°C, and the stirring was continued for 35 hours;

[0047] (5) Add 1,6-hexamethylenediamine dropwise to the above mixt...

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Abstract

The invention discloses a preparation method of amination graphene oxide reinforced fibers. The preparation method has the advantages that amination graphene oxide is evenly dispersed in nylon 6, a strong binding effect is achieved, and the performance of the modified fibers is enhanced.

Description

technical field [0001] The invention relates to the technical field of fiber reinforcement, in particular to a method for preparing aminated graphene oxide reinforced fiber. Background technique [0002] Nylon 6, also known as nylon 6, is a polymer formed by ring-opening polymerization of caprolactam, and is one of the most widely used synthetic fibers at present. But the traditional nylon 6 fiber can no longer meet people's needs. In this case, how to develop high-performance nylon 6 fibers has attracted more and more attention. [0003] At present, people's research on nylon 6 is mainly focused on how to obtain higher strength and modulus. The modification of nylon 6 is currently mainly obtained by modifying the matrix resin and introducing nano-materials such as glass fiber, silica, and montmorillonite to obtain high-performance nylon 6 fibers. Although, the performance of the material can be improved through these methods, which have their unique features. But in the...

Claims

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Application Information

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IPC IPC(8): D01F6/90D01F1/10
CPCD01F6/90D01F1/10
Inventor 过冬
Owner 过冬
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