Environment-friendly water-based nano coating material used for concrete protection, and preparation method thereof

A concrete, environmentally friendly technology, used in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve the problems of long reaction time, decline in the performance of emulsions, lower production efficiency, etc., to improve concrete protection Effect, durability improvement, good protection effect

Active Publication Date: 2013-09-04
江苏道成不锈钢管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent 102186893 discloses a concrete treatment agent containing fluorine and silicon, which improves the hydrophilicity of concrete due to the porous structure, and improves the oil repellency and stain resistance, but the preparation process of the fluorine-containing polymer is complicated and the cost is high. Not conducive to application
Patent CN 200510034381.6 introduces a silicone waterproofing agent and its preparation method. The polymerization reaction time is 15-22 hours, the reaction time is too long, and sulfuric acid is used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1:

[0047] Taking the production of 100g of the material of the present invention as an example, the raw materials used and the preparation process thereof:

[0048] (1) Disperse 0.5g nano-silica and 0.5g nano-titanium dioxide into 10g silane coupling agent at 30℃, stir for 30min, filter and dry, and set aside; at room temperature (25℃), the silane coupling The nano-silica and nano-titanium dioxide treated with the coupling agent are ultrasonically dispersed into 10g of water, and ultrasonically for 10 minutes at a power of 100w to obtain a uniformly dispersed solution A;

[0049] (2) Disperse 1g OP-10 emulsifier, 1.6g Span-60 emulsifier, 0.4g sodium lauryl sulfate in 16.4g water at 25℃, stir for 15min at 250rpm stirring speed, and stir evenly to obtain solution B ; Disperse 4g organosilicon oligomer, 0.6g 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) into 65g n-hexadecyltriethoxysilane , Stir for 15min at 250rpm stirring speed to obtain evenly dispersed solut...

Example Embodiment

[0052] Example 2:

[0053] Taking the production of 100g of the material of the present invention as an example, the raw materials used and the preparation process thereof:

[0054] (1) Disperse 5g nano-silica and 2g nano-titanium dioxide into 20g silane coupling agent at 50℃, stir for 45min, filter and dry, and set aside; at room temperature (25℃), remove silane coupling agent The treated nano-silica and nano-titanium dioxide are ultrasonically dispersed into 20g of water, and ultrasonicated for 15min under 500w power to obtain uniformly dispersed solution A;

[0055] (2) Disperse 1g of NP-20 emulsifier, 1.5g of Span-80 emulsifier, and 0.5g of sodium lauryl sulfate into 17g of water at 25°C, stir for 15min at a stirring speed of 250rpm, and stir evenly to obtain solution B; Disperse 0.4g of silicone oligomer and 0.6g of 2-n-octyl-4-isothiazolin-3-one (OIT) into 52g of n-hexadecyltriethoxysilane and stir for 40min at a stirring speed of 50rpm. Obtain a uniformly dispersed solution ...

Example Embodiment

[0058] Example 3:

[0059] Taking the production of 100g of the material of the present invention as an example, the raw materials used and the preparation process thereof:

[0060] (1) Disperse 10g nano-silica and 0.5g nano-titanium dioxide into 20g silane coupling agent at 50℃, stir for 45min, filter and dry, set aside; couple silane at room temperature (25℃) The nano-silica and nano-titanium dioxide treated with the agent were ultrasonically dispersed into 35g of water, and ultrasonicated for 25min under 1000w power to obtain uniformly dispersed solution A;

[0061] (2) Disperse 0.25g Tween-80 emulsifier and 0.05g sodium lauryl sulfate into 15.1g water at 25°C, stir for 40min at a stirring speed of 50rpm, and stir evenly to obtain solution B; reduce 4g of silicone Polymer, 0.1g 2-n-octyl-4-isothiazolin-3-one (OIT) was dispersed in 35g n-hexadecyltriethoxysilane, stirred at 100rpm stirring speed for 30min to obtain uniformly dispersed solution C ;

[0062] (3) Add solution A and s...

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Abstract

The invention provides an environment-friendly water-based nano coating material used for concrete protection, and a preparation method thereof. The environment-friendly water-based nano coating material comprises 15%-65% of an organic silane coupling agent, 0.5-10% of nano silica, 0.5-5% of nano titanium dioxide, 0.4%-4% of an organosilicon oligomer, 0.3%-3% of an emulsifier, 0.1%-0.6% of a bactericidal anti-algae agent, 0.01%-0.1% of a regulator, and the balance being deionized water. The environment-friendly water-based nano coating material used for the concrete protection takes advantages of a nanometer effect of nanoparticles and a hydrophobic effect of long-chain organosilicone coupling agent. The prepared environment-friendly water-based nano coating material used for the concrete protection has excellent protection performance.

Description

technical field [0001] The invention belongs to the field of concrete protection, and in particular relates to an environment-friendly water-based nano-coating material for concrete protection and a preparation method thereof. The environment-friendly coating material is mainly used for protection, waterproofing and durability of hydraulic engineering, roads and bridge concrete sexual enhancement etc. Background technique [0002] For a long time, concrete has been widely used as a high-strength, durable and economical building material. In fact, concrete is not as durable as expected during long-term use. In harsh climates or saline-alkaline environments and coastal environments, concrete structures The deterioration and damage of concrete are very obvious, which leads to a significant decrease in the durability of concrete engineering and affects the safe use of work. Therefore, the protection of concrete in hydraulic engineering, roads, bridges and harsh environments is m...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D7/12C09D5/16C09D5/14
Inventor 王洪松李磊刘加平田倩王瑞王文彬
Owner 江苏道成不锈钢管业有限公司
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