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Graphene antistatic lithium-based sealing curing agent for concrete and preparation method of sealing curing agent

A sealing and curing agent and graphene technology, applied in the field of anti-static functional decorative coatings for concrete floors, can solve problems such as the inability of concrete sealing and curing agents to meet the requirements, and achieve the effects of reducing maintenance costs, improving strength and hardness, and increasing resistivity

Inactive Publication Date: 2019-11-12
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in places where anti-static requirements are required, general concrete sealing and curing agents cannot meet the requirements.

Method used

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  • Graphene antistatic lithium-based sealing curing agent for concrete and preparation method of sealing curing agent
  • Graphene antistatic lithium-based sealing curing agent for concrete and preparation method of sealing curing agent
  • Graphene antistatic lithium-based sealing curing agent for concrete and preparation method of sealing curing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A graphene antistatic concrete sealing and curing agent is composed of the following component mass ratios:

[0031] raw material Mass ratio / % water 55.5 Sodium dodecyl sulfonate 1 Condensate of Fatty Alcohol and Ethylene Oxide 1 5% graphene aqueous slurry (graphene: graphene oxide = 1:4) 0.5 Nano conductive mica powder 12 Lithium silicate 25 Water-based color paste 5 total 100

[0032] Its preparation method comprises the following steps:

[0033] (1) Add 55.5Kg of water into the dispersion tank, add 1Kg of sodium dodecylsulfonate and 1Kg of fatty alcohol and ethylene oxide condensate successively at low speed, and disperse 10mim at 1000RPM;

[0034] (2) Add 0.5Kg graphene water-based slurry (5%) and 12Kg nano conductive mica powder, after uniform dispersion, grind in a sand mill for 30min;

[0035] (3) Stir the ground components, 25Kg lithium silicate and 5Kg water-based color paste evenly.

Embodiment 2

[0037] A graphene antistatic concrete sealing and curing agent is composed of the following component mass ratios:

[0038]

[0039]

[0040] Its preparation method comprises the following steps:

[0041] (1) Add 59Kg of water into the dispersion tank, add 0.8Kg of sodium lauryl sulfate and 0.5Kg of fatty alcohol polyoxyethylene ether in sequence at a low speed, and disperse for 10 minutes at 1000RPM;

[0042] (2) Add 0.7Kg graphene water-based slurry (5%) and 10Kg nano-conductive zinc oxide, after uniform dispersion, grind in a sand mill for 30 minutes;

[0043] (3) Stir the ground components, 21Kg lithium silicate and 7Kg water-based color paste evenly.

Embodiment 3

[0045] A graphene antistatic concrete sealing and curing agent is composed of the following component mass ratios:

[0046] raw material Mass ratio / % water 68.8 Sodium dodecyl sulfonate 0.6 Fatty alcohol polyoxyethylene ether 0.6 5% graphene aqueous slurry (graphene: graphene oxide = 1:1) 2 Nano conductive carbon black 4 conductive fiber 5 Lithium silicate 19 total 100

[0047] Its preparation method comprises the following steps:

[0048] (1) Add 68.8Kg of water into the dispersion tank, add 0.6Kg of sodium dodecylsulfonate and 0.6Kg of fatty alcohol polyoxyethylene ether in sequence at a low speed, and disperse at 1000RPM for 10min;

[0049] (2) Add 2Kg graphene aqueous slurry (5%) and 4Kg nanometer conductive carbon black and 5Kg conductive fiber, after dispersing evenly, grind in sand mill, grind 30min;

[0050] (3) Stir the ground components and 19Kg of lithium silicate evenly.

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Abstract

The invention relates to a graphene antistatic lithium-based sealing curing agent for concrete and a preparation method of the sealing curing agent. The sealing curing agent is composed of the following components in percentages by mass: 55.5-72.3% of water, 0.6-1% of a dispersing agent, 0.3-1% of a penetrating agent, 0.5-5%of graphene water-based slurry, 3-12% of an electroconductive material, 15-25% of lithium silicate, and 0-10% of water-based color paste. The preparation method comprises the following preparation steps: (1) adding the water into a dispersion cylinder, adding the dispersingagent and the penetrating agent at a low speed, and performing dispersion; (2) adding the graphene water-based slurry and the electroconductive material, and performing grinding in a sand mill; and 3) uniformly stirring the ground components, the lithium silicate and the water-based color paste. According to the method provided by the invention, the product prepared by the method can reduce the use amount of other electroconductive materials correspondingly while ensuring the antistatic effect, and has a durable antistatic effect, high hardness and good water and chemical resistance.

Description

technical field [0001] The invention relates to an antistatic functional decorative coating for concrete floors, in particular to a graphene antistatic lithium-based concrete sealing and curing agent and a preparation method thereof. Background technique [0002] During the hardening process of concrete, the surface layer and the internal structure contain a large number of interpenetrating pores. As a result, during the service process of concrete structures, it is often difficult to resist the erosion of corrosive substances in the environment due to poor surface quality or insufficient compactness, resulting in the performance of concrete structures. The accelerated deterioration of concrete structures reduces the durability and service life of concrete structures. In the prior art, concrete sealing and curing agents are commonly used to treat concrete structures. [0003] Concrete sealing and curing agent is a multi-component chemical reagent with low viscosity. After b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26
CPCC04B28/26C04B2111/27C04B2111/94C04B14/20C04B14/024C04B24/28C04B24/16C04B2103/54C04B14/30C04B24/32C04B14/022C04B14/38
Inventor 王志刚周义锋
Owner SHANGHAI INST OF TECH
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