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Water glass solution containing graphene and preparation method thereof

A water glass solution, graphene technology, applied in chemical instruments and methods, alkali metal silicate, silicate and other directions, can solve the problems of reduced service life, poor alkali resistance and water resistance, etc. The effect of enhanced waterproofness, easy industrial production and application

Inactive Publication Date: 2016-09-28
TANGSHAN JIANHUA TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the commonly used water glass has better acid resistance, heat resistance and higher cohesive force, water glass cannot be used in an alkaline environment, so the alkali resistance and water resistance are poor, making water glass widely used in various fields. Reduced service life in medium applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of a water glass solution containing graphene, carried out as follows:

[0022] (1) Solid R 2 O 2SiO 2 , 5% graphene oxide aqueous solution, deionized water according to the solid content mass ratio of 20:0.1:78, take the solid R 2 O 2SiO 2 Mix 20 parts of particles, 2 parts of graphene oxide aqueous solution, and 78 g of deionized water. Stir for 35 minutes at a stirring speed of 220 r / min until the mixture is uniform;

[0023] (2) Put the mixed solution obtained in step (1) in a closed stirred reactor for heat and pressure treatment, hydrothermally react at 100-230°C for 0.5-12 hours, and control the pressure within 1-10 atmospheres;

[0024] (3) Take out the mixed liquid after the reaction in step (2), remove impurities by natural sedimentation, transfer the liquid without impurities into the concentration tank and concentrate at 60°C to obtain 32°Bé water containing 5% graphene glass solution.

Embodiment 2

[0026] A preparation method of a water glass solution containing graphene, carried out as follows:

[0027] (1) Solid R 2 O 2SiO 2 , 1% graphene oxide aqueous solution, deionized water according to the solid content mass ratio of 10:1:0, take the solid R 2 O 2SiO 2 20 parts of granules and 200 parts of graphene oxide aqueous solution are mixed, the stirring time is 35 minutes, and the stirring speed is 250 r / min, until the mixture is uniform;

[0028] (2) Put the mixed solution obtained in step (1) in a closed stirred reactor for heat and pressure treatment, hydrothermally react at 100-230°C for 0.5-12 hours, and control the pressure within 1-10 atmospheres;

[0029] (3) Take out the mixed liquid after the reaction in step (2), remove impurities by natural sedimentation, transfer the liquid without impurities into the concentration tank and concentrate at 60°C to obtain 35°Bé water containing 1% graphene glass solution.

Embodiment 3

[0031] A preparation method of a water glass solution containing graphene, carried out as follows:

[0032] (1) Solid R 2 O 2.6SiO 2 , 4% graphene oxide aqueous solution, deionized water according to the solid content mass ratio of 22.5:3:2.5, take the solid R 2 O 2.6SiO 2 22.5 parts of granules, 75 parts of graphene oxide aqueous solution, and 2.5 parts of deionized water were mixed, and the stirring time was 40 minutes, and the stirring speed was 300 r / min until the mixture was uniform;

[0033] (2) Put the mixed solution obtained in step (1) in a closed stirred reactor for heat and pressure treatment, hydrothermally react at 100-230°C for 0.5-12 hours, and control the pressure within 1-10 atmospheres;

[0034] (3) Take out the mixed solution after the reaction in step (2), remove impurities by natural sedimentation, transfer the liquid without impurities into the concentration tank and concentrate at 65°C to obtain 42°Bé water containing 4% graphene glass solution.

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Abstract

The invention relates to a water glass solution containing graphene and a preparation method thereof. The water glass solution comprises the following components: water, R2O.nSiO2, and graphene. The preparation method comprises the following steps: solid R2O.nSiO2, an aqueous solution of oxidized graphene, and deionized water are uniformly mixed according to a solid content mass ratio 20-45:0.05-12:0-79; obtained mixed liquor is placed in a enclosed stirred reaction kettle for carrying out heating and pressurization treatment; after a reaction is completed, natural sedimentation is carried out for the mixed liquor in order to remove impurities, the part of liquid without impurities is transferred to a condensation tank, condensation is carried out to a corresponding baume at a certain temperature, and the water glass solution containing quantitative graphene is obtained. The water glass solution has the advantages of better applicability, enhanced thermal properties and water resistance, better corrosion resistance, and prolonged usage life of application to each field. The method has a simple process and high efficiency, and industrial production and application are easy to realize.

Description

technical field [0001] The invention relates to a water glass solution, in particular to a graphene-containing water glass solution and a preparation method thereof. Background technique [0002] Water glass has a wide range of uses, involving light industry, chemical industry, building materials, metallurgy, construction and other fields. Sodium silicate can be painted on the surface of materials to improve weathering resistance. It can also be used to strengthen soil, configure quick-setting waterproofing agent, configure acid-resistant gel, acid-resistant mortar and acid-resistant concrete, and anti-corrosion engineering. Although the commonly used water glass has better acid resistance, heat resistance and higher cohesive force, water glass cannot be used in an alkaline environment, so the alkali resistance and water resistance are poor, making water glass widely used in various fields. Reduced service life in medium applications. [0003] Graphene has a unique structu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/32
CPCC01B33/325
Inventor 吴洪鹏孟英高晓晔侯林艳王建华
Owner TANGSHAN JIANHUA TECH DEV
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