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Inorganic weather-resistant concrete protective coating and preparation method thereof

A technology for protecting coatings and concrete, applied in anti-corrosion coatings, anti-fouling/underwater coatings, coatings, etc., to achieve the effects of enhanced antibacterial, excellent mechanical and chemical stability, and improved adhesion

Inactive Publication Date: 2021-11-30
陕西宝塔山创新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the concrete protective coatings existing in the prior art, although all of them can achieve the basic protective function, but there are certain defects, especially for the weather resistance, antibacterial and anticorrosion performance in the long-term use process, etc., there are still certain limitations In view of the problem of safety, an inorganic weather-resistant concrete protective coating and its preparation method are provided

Method used

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  • Inorganic weather-resistant concrete protective coating and preparation method thereof

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Effect test

Embodiment 1

[0029] An inorganic weather-resistant concrete protective coating is provided, including the following components by weight: 55 parts of modified nano-silica sol emulsion, 10 parts of Ce / graphene inorganic antibacterial agent, 7 parts of modified perlite particles, wetting and dispersing agent Tego 2450.2 0.2 parts of thickener sodium carboxymethyl cellulose, 0.5 parts of defoamer mineral oil silicon-based mixture, 3 parts of leveling agent BYK37203, 35 parts of deionized water.

[0030] The preparation process of above-mentioned modified nano silica sol emulsion comprises the steps:

[0031] Slowly add 3-methacryloxypropyltrimethoxysilane modifier and an appropriate amount of surfactant and water to the nano-silica sol under stirring, wherein 3-methacryloxypropyltrimethoxy The addition amount of the silane modifier is 1.5wt% of the nano-silica sol. After the addition is completed, continue to stir for more than 10 hours until the milky white translucent low-viscosity emulsion...

Embodiment 2

[0041] An inorganic weather-resistant concrete protective coating is provided, including the following components by weight: 62 parts of modified nano-silica sol emulsion, 8 parts of Ce / graphene inorganic antibacterial agent, 5 parts of modified perlite particles, wetting and dispersing agent Tego 2450.3 0.3 parts of thickener hydroxyethyl cellulose, 0.4 parts of aliphatic hydrocarbon emulsification of defoamer, 2 parts of leveling agent BYK37202, 32 parts of deionized water.

[0042] The preparation process of above-mentioned modified nano silica sol emulsion comprises the steps:

[0043]Slowly add 3-methacryloxypropyltrimethoxysilane modifier and an appropriate amount of surfactant and water to the nano-silica sol under stirring, wherein 3-methacryloxypropyltrimethoxy The addition amount of the silane modifier is 1.6wt% of the nano-silica sol. After the addition is completed, continue to stir for more than 10 hours until the milky white translucent low-viscosity emulsion is ...

Embodiment 3

[0053] An inorganic weather-resistant concrete protective coating is provided, including the following components by weight: 68 parts of modified nano-silica sol emulsion, 7 parts of Ce / graphene inorganic antibacterial agent, 4 parts of modified perlite particles, wetting and dispersing agent Tego 2450.4 0.4 parts of thickener polyvinylpyrrolidone, 0.4 parts of polyether organic compound of defoamer, 2 parts of leveling agent BYK37202, 28 parts of deionized water.

[0054] The preparation process of above-mentioned modified nano silica sol emulsion comprises the steps:

[0055] Slowly add 3-methacryloxypropyltrimethoxysilane modifier and an appropriate amount of surfactant and water to the nano-silica sol under stirring, wherein 3-methacryloxypropyltrimethoxy The addition amount of the silane modifier is 1.7wt% of the nano-silica sol. After the addition, continue to stir for more than 10 hours until the milky white translucent low-viscosity emulsion is obtained, which is the m...

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Abstract

The invention discloses an inorganic weather-resistant concrete protective coating and a preparation method thereof. The protective coating comprises the following components, by weight: 55-75 parts of a modified nano silica sol emulsion, 5-10 parts of a Ce / graphene inorganic antibacterial agent, 3-7 parts of modified perlite particles, 0.2-0.5 part of a wetting dispersant, 0.2-0.5 part of a thickening agent, 0.2-0.5 part of a defoaming agent, 1-3 parts of a leveling agent and 25-35 parts of deionized water. The preparation method comprises the following steps: mixing the modified nano silica sol emulsion, the Ce / graphene inorganic antibacterial agent and the modified perlite particles according to the formula of the protective coating, and performing stirring and dispersing at a high speed for 30-60 minutes by adopting a high-speed dispersion machine; adding the rest wetting dispersant, thickening agent, defoaming agent, flatting agent and deionized water into the protective coating formula; and adjusting the state of the high-speed dispersion machine to medium-speed stirring dispersion, performing stirring continuously and uniformly, performing filtering and packaging. The protective coating provided by the invention has good alkali resistance, water resistance, weather resistance, impact resistance, adhesive force and the like.

Description

technical field [0001] The invention belongs to the technical field of concrete surface treatment, and in particular relates to an inorganic weather-resistant concrete protective coating and a preparation method thereof. Background technique [0002] Concrete is a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. Concrete, which is widely used in civil engineering. [0003] Cement-based penetrating crystalline coatings, silicone waterproof penetrating agents, asphalt, tar and organic solvents are used as coating protection for concrete surfaces, but cement-based penetrating crystalline coatings and silicone waterproof penetrating agents cannot play a good r...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/14C09D5/08C09D7/61
CPCC09D1/00C09D5/14C09D5/08C09D7/61
Inventor 谢建梁徐理德李瑞婷冯远岳晓栋
Owner 陕西宝塔山创新科技有限公司
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