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A kind of anti-carbonization nano-coating on concrete surface and its manufacturing process

A concrete surface and nano-coating technology, applied in anti-corrosion coatings, anti-fouling/underwater coatings, wax coatings, etc., can solve problems such as inability to carbonize concrete, and achieve good weather resistance and stain resistance

Active Publication Date: 2018-06-29
中基为(重庆)新材料技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For many concrete structures that have been built, it is impossible to prevent concrete carbonation from the aspects of materials and construction, so painting the concrete surface to prevent carbonation is an economical and applicable measure with excellent anti-carbonation effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of technology of preparing anti-carbonization nano-coating on concrete surface, this technology comprises the steps:

[0025] 1) Add 50Kg of bisphenol A resin and 20Kg of dispersant into the reaction kettle, stir at 580 rpm for 30 minutes, add 20Kg of nano-silica, and stir at 780 rpm for 60 minutes to obtain component A;

[0026] 2) Sealing and filling of component A of the anti-carbonization nano-coating on the concrete surface must be completed within 1 hour;

[0027] 3) Add 25Kg of water, 12Kg of precipitated barium sulfate and 18Kg of titanium dioxide into the reactor, and stir at 780 rpm for 20 minutes;

[0028] 4) Add 15Kg of wax powder to the reaction kettle, stir at 580 rpm, and simultaneously add 10Kg of polyamine curing agent, 5Kg of defoamer and 5Kg of wetting agent to prepare component B;

[0029] 5) Sealing and filling of component B of the anti-carbonization nano-coating on the concrete surface must be completed within 1 hour;

[0030] 6) Mix the ...

Embodiment 2

[0034] A kind of technology of preparing anti-carbonization nano-coating on concrete surface, this technology comprises the steps:

[0035] 1) Add 54Kg of bisphenol A resin and 24Kg of dispersant into the reactor, stir at 590 rpm for 30 minutes, add 24Kg of nano-silica, and stir at 790 rpm for 60 minutes to obtain component A;

[0036] 2) Sealing and filling of component A of the anti-carbonization nano-coating on the concrete surface must be completed within 1 hour;

[0037] 3) Add 27Kg of water, 13Kg of precipitated barium sulfate and 19Kg of titanium dioxide into the reactor, and stir at 790 rpm for 20 minutes;

[0038] 4) Add 18Kg of wax powder to the reaction kettle, stir at 590 rpm, and simultaneously add 12Kg of polyamine curing agent, 5Kg of defoamer and 5Kg of wetting agent to prepare component B;

[0039] 5) Sealing and filling of component B of the anti-carbonization nano-coating on the concrete surface must be completed within 1 hour;

[0040] 6) Mix the prepared...

Embodiment 3

[0044] A kind of technology of preparing anti-carbonization nano-coating on concrete surface, this technology comprises the steps:

[0045] 1) Add 60Kg of bisphenol A resin and 30Kg of dispersant into the reactor, stir at 600 rpm for 30 minutes, then add 20Kg of nano-silica, and stir at 800 rpm for 60 minutes to obtain component A;

[0046] 2) Sealing and filling of component A of the anti-carbonization nano-coating on the concrete surface must be completed within 1 hour;

[0047] 3) Add 30Kg of water, 15Kg of precipitated barium sulfate and 20Kg of titanium dioxide into the reactor, and stir at 800 rpm for 20 minutes;

[0048] 4) Add 18Kg of wax powder to the reaction kettle, stir at 600 rpm, and simultaneously add 12Kg of polyamine curing agent, 2Kg of defoamer and 2Kg of wetting agent to prepare component B;

[0049] 5) Sealing and filling of component B of the anti-carbonization nano-coating on the concrete surface must be completed within 1 hour;

[0050] 6) Mix the pre...

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Abstract

The invention discloses a concrete surface carbonization-resistant nano paint which comprises a component A and a component B. The component A comprises the following ingredients in parts by weight: 50-60 parts of bisphenol A resin, 20-30 parts of dispersing agent and 20-30 parts of nano silicon dioxide. The component B comprises the following ingredients in parts by weight: 10-12 parts of polyamine curing agent, 25-30 parts of water, 12-15 parts of precipitated barium sulfate, 15-18 parts of wax powder, 18-20 parts of titanium white, 2-5 parts of defoaming agent and 2-5 parts of wetting agent. The invention also discloses a technique for preparing the concrete surface carbonization-resistant nano paint. The nano paint can be widely used on the surfaces of buildings, bridges, tunnels, dams, breast walls and other concrete structures. A compact and hard protective layer is formed on the concrete surface to perform favorable isolation functions on carbon dioxide, oxygen and other components in air, thereby achieving the effect of concrete surface carbonization resistance. Meanwhile, the paint has favorable weather resistance and pollution resistance.

Description

technical field [0001] The invention relates to a nano coating, in particular to a concrete anti-carbonization nano coating and a manufacturing process thereof. Background technique [0002] Concrete carbonation is a chemical attack on concrete. CO in the air 2 The process of permeating into concrete and reacting with alkaline substances to form carbonate and water, which reduces the alkalinity of concrete is called concrete carbonation, also known as neutralization. Concrete carbonation is an important part of concrete durability research. Scholars at home and abroad have conducted in-depth research on the mechanism of concrete carbonation from different angles, and obtained that the main factors affecting concrete carbonation include material factors, environmental factors and construction factors. For many concrete structures that have been built, it is impossible to prevent concrete carbonation from the aspects of materials and construction, so painting the concrete su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D191/06C09D7/61C09D5/08C09D5/16
CPCC08K2201/011C09D5/08C09D5/16C09D7/61C09D163/00C08L91/06C08K3/36C08K2003/3045C08K2003/2241
Inventor 张学明
Owner 中基为(重庆)新材料技术研究院有限公司
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