Water-based anticorrosive paint, preparation and application in field of concrete structure protection

A water-based technology for anti-corrosion coatings, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of loose paint film, alkali return, large gaps, etc., and achieve dense coating film, excellent anti-corrosion performance, and mechanical properties excellent effect

Inactive Publication Date: 2019-01-04
洛阳双瑞防腐工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system is physically film-formed by a single-component emulsion, and the polymer latex particles are softened under the action of film-forming aids and then extruded to form a film, resulting in loose paint film and large gaps, which are prone to alkali reversion and salting out Other paint film disadvantages

Method used

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  • Water-based anticorrosive paint, preparation and application in field of concrete structure protection
  • Water-based anticorrosive paint, preparation and application in field of concrete structure protection
  • Water-based anticorrosive paint, preparation and application in field of concrete structure protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of water-based anticorrosion paint, comprises A component and B component, wherein, described A component comprises following component by weight:

[0043]

[0044]

[0045] The B component is water-based alicyclic amine curing agent CTW-6061 (B);

[0046] The preparation method of described waterborne anticorrosion paint, comprises the steps:

[0047] (1) Refining stage: Add wetting and dispersing agent, neutralizer, defoamer and part of deionized water into the dispersion tank, disperse at low speed (300r / min) for 10min, then add kaolin and talc powder and precipitated barium sulfate, and disperse at high speed (1000r / min) for 20 minutes. After the dispersion is completed, transfer to a sand mill for grinding until the fineness is ≤40 μm to obtain mixture Ⅰ;

[0048] (2) Paint let-down stage: Add the water-based fluorocarbon emulsion, water-based silane emulsion and water-based epoxy emulsion of the water-based anti-corrosion coating into the dispersion ...

Embodiment 2

[0051] A kind of water-based anticorrosion paint, comprises A component and B component, wherein, described A component comprises following component by weight:

[0052]

[0053]

[0054] The B component is water-based alicyclic amine curing agent STW-703B;

[0055] The preparation method of described waterborne anticorrosion paint, comprises the steps:

[0056] (1) Refining stage: Add wetting and dispersing agent, neutralizer, defoamer and part of deionized water into the dispersion tank, disperse at low speed (400r / min) for 8min, then add kaolin and talc Powder and precipitated barium sulfate were dispersed at high speed (1200r / min) for 15 minutes. After the dispersion was completed, transfer to a sand mill for grinding until the fineness was ≤40 μm to obtain mixture I;

[0057] (2) Paint let-down stage: Add the water-based fluorocarbon emulsion, water-based silane emulsion and water-based epoxy emulsion of the water-based anti-corrosion coating into the dispersion ta...

Embodiment 3

[0060] A kind of water-based anticorrosion paint, comprises A component and B component, wherein, described A component comprises following component by weight:

[0061]

[0062]

[0063] The B component is water-based alicyclic amine curing agent EPIKURET M6870-W-53;

[0064] The preparation method of described waterborne anticorrosion paint, comprises the steps:

[0065] (1) Refining stage: Add wetting and dispersing agent, neutralizer, defoamer and part of deionized water into the dispersion tank, disperse at low speed (500r / min) for 5min, then add kaolin and talc powder and precipitated barium sulfate, and disperse at high speed (1200r / min) for 20 minutes. After the dispersion is completed, transfer to a sand mill for grinding until the fineness is ≤40 μm to obtain mixture Ⅰ;

[0066] (2) Paint let-down stage: Add the water-based fluorocarbon emulsion, water-based silane emulsion and water-based epoxy emulsion of the water-based anti-corrosion coating into the dispe...

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Abstract

The invention relates to the technical field of anticorrosive paint, in particular to water-based anticorrosive paint, preparation and application in the field of concrete structure protection. The water-based anticorrosive paint comprises a component jia and a component yi, the component jia is prepared from, by weight, 10-20 parts of water-based fluorocarbon emulsion, 10-20 parts of water-basedsilane emulsion, 40-60 parts of water-based epoxy emulsion, 5-10 parts of kaolin, 10-15 parts of talcum powder, 5-10 parts of precipitated barium sulphate, 0.5-1.2 parts of wetting dispersant, 0.5-2parts of defoaming agent, 0.1-0.5 part of neutralizer, 3-10 parts of film forming auxiliary agent, 0.1-0.5 part of thickening agent and 7-15 parts of water, and the component yi is water-based alicyclic amine curing agent. The paint has two functions of sealing primer and finishing paint, has excellent weather resistance performance, adhesive force, alkali resistance performance and concrete permeability, is small in environmental pollution, and can be widely applied to concrete structures of urban viaducts.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to a water-based anti-corrosion coating and its preparation and application in the field of concrete structure protection. Background technique [0002] The construction and development of urban viaducts are very rapid. With the continuous improvement of the public's requirements for the urban environment and landscape, the water-based anti-corrosion coating on the surface of various bridges has become more and more important. Solvent-based coatings have always been favored because of their good surface and comprehensive mechanical properties (Ji Jianxia. The status quo of water-based coatings in my country [J]. Shanghai Coatings. 2016,54(5):38-41). However, its cost is high, and the use of medium and low solids solvent-based coatings contains a large amount of volatile organic compounds (VOC), which brings serious harm to the health of construction workers and the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D127/12C09D183/04C09D5/08C09D7/61
CPCC08K2003/3045C08L2201/08C08L2205/03C09D5/08C09D163/00C09D7/61C08L27/12C08L83/04C08K13/02C08K3/346C08K3/34C08K3/30C08K5/10
Inventor 魏志龙屈浩洋张小磊
Owner 洛阳双瑞防腐工程技术有限公司
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