Graphene impermeable agent, preparation method thereof and applications thereof

A graphene and anti-seepage agent technology, which is applied in the field of anti-seepage materials and anti-seepage agents containing graphene, can solve the problems of large amount of graphene nanosheets added, which is not conducive to the dispersion of graphene, and limits practical applications, etc., and achieves high Strength, high flexibility, and good complementary advantages

Active Publication Date: 2017-11-07
THE SIXTH ELEMENT CHANGZHOU MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The matrix studied in this paper is cement mortar. After premixing graphene with water and concrete admixtures, it is directly added to the cement mortar. This process is not conducive to the dispersion of graphene in cement mortar. In addition, the amount of graphene nanosheets added Large, high cost, which limits its practical application in cement composites

Method used

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  • Graphene impermeable agent, preparation method thereof and applications thereof
  • Graphene impermeable agent, preparation method thereof and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] (1) Weigh 5g graphene and 250g water, after stirring evenly, add 15g triethanolamine in this graphene aqueous suspension, stir uniformly, obtain the mixed slurry of graphene, water and triethanolamine. Then, the above-mentioned mixed slurry was ground for 1 hour in a sand mill disperser with a rotation speed of 1500 rpm. After the grinding is completed, the above mixed slurry is reacted for 50 minutes at 45° C. and the rotation speed is 500 rpm. After the reaction is completed, the mixed slurry of graphene / triethanolamine is obtained.

[0056] (2) 40g fly ash (30g class I fly ash, 10g class II fly ash), 30g silicon powder (18g 12500 mesh silicon powder, 12g 5000 mesh silicon powder), 6g gypsum (calcined at a temperature of 120°C ) dry-mixed in a ball mill to obtain a mixed powder.

[0057] (3) Place the mixed slurry obtained in step (1) in a heated spray dryer at 100° C., and spray the mixed slurry evenly into the mixed powder obtained in step (2) to obtain a mixed pow...

Embodiment 2

[0060] (1) Weigh 10g graphene and 1000g water, after stirring evenly, add 13g triethanolamine and 10g diethanolamine in this graphene aqueous suspension, stir evenly, obtain graphene mixed slurry. Then, the above-mentioned mixed slurry was ground for 1.5 hours in a sand mill disperser with a rotation speed of 1800 rpm. After the grinding is completed, the above mixed slurry is reacted for 45 minutes at 50° C. and the rotation speed is 800 rpm. After the reaction is completed, a mixed slurry of graphene / triethanolamine / diethanolamine is obtained.

[0061] (2) Dry-mix 30g of fly ash (15g of Class I fly ash, 15g of Class II fly ash), 10g of ultrafine slag powder, and 8g of gypsum (calcined at a temperature of 130°C) in a ball mill to obtain a mixed powder .

[0062] (3) Place the mixed slurry obtained in step (1) in a heated spray dryer at 115° C., and spray the mixed slurry evenly into the mixed powder obtained in step (2) to obtain a mixed powder with evenly dispersed graphene...

Embodiment 3

[0065] (1) take 8g graphene and 1100g water by weighing, after stirring, add 15g triethanolamine and 10g diethanol monoisopropanolamine in this graphene aqueous suspension, stir, obtain graphene and water and alcohol amine Mix slurry. Then, the above-mentioned mixed slurry was ground for 1 hour in a sand mill disperser with a rotation speed of 2000 rpm. After the grinding is completed, the above mixed slurry is reacted for 60 minutes under the conditions of 50° C. and a rotation speed of 900 rpm. After the reaction is completed, the mixed slurry of graphene / alcoholamine is obtained.

[0066] (2) 25g fly ash (22g I grade fly ash, 3g II grade fly ash), 20g silicon powder (15g 12500 mesh silicon powder, 5g 2000 mesh silicon powder), 10g ultrafine slag powder, 7g gypsum ( Calcined at a temperature of 150° C.) dry-mixed in a ball mill to obtain a mixed powder.

[0067] (3) Place the mixed slurry obtained in step (1) in a heated spray dryer at 120° C., and spray the mixed slurry e...

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Abstract

The invention discloses a graphene impermeable agent, a preparation method thereof and applications thereof, wherein 100 parts of the graphene impermeable agent comprises, by weight, 5-10 parts of graphene, 10-25 parts of an alcohol amine compound, 50-75 parts of a mineral admixture, 6-15 parts of gypsum, and 4-10 parts of a component A. According to the present invention, with the doping of the graphene impermeable agent into concrete, the active component in the concrete can form the hydration crystal growth point on the surface of the graphene lamella so as to change the crystal morphology of the concrete cementing material hydration product and improve the pore structure of the concrete, such that the concrete can form the compact system, and the impermeability, the mechanical property and the durability of the concrete can be effectively improved; and with the doping of the graphene impermeable agent into the building mortar, the impermeability, the water resistance and the mechanical strength of the building mortar can be improved.

Description

technical field [0001] The invention relates to an anti-seepage material, in particular to an anti-seepage agent containing graphene, which belongs to the field of construction auxiliary materials. The anti-seepage agent can be used in concrete construction projects, especially concrete structures requiring high anti-seepage such as water conservancy, bridges, harbors, underground, roofs, and pools. The anti-seepage agent can also be used in the field of waterproof cement mortar for anti-seepage and waterproof on the surface or interior of buildings. Background technique [0002] The anti-seepage in construction engineering has always been a problem that has received widespread attention. With the rapid development of the national economy, the performance requirements of materials in modern construction engineering are also getting higher and higher, such as concrete for water conservancy, bridges, seaports, underground, pools, etc. For the anti-seepage of buildings and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/16C04B24/26C04B103/65
CPCC04B40/0039C04B2103/65C04B2201/50C04B14/024C04B24/122C04B18/08C04B18/146C04B22/143C04B22/147C04B24/16C04B18/141C04B24/2664C04B22/062
Inventor 郑雅轩赖健平瞿研
Owner THE SIXTH ELEMENT CHANGZHOU MATERIALS TECH
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