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Special high-permeability moisture-curing seal primer for concrete as well as preparation method and application thereof

A technology for sealing primer and concrete, applied in climate change adaptation, coating, anti-corrosion coatings, etc., can solve the problems of single performance, high VOC content of coatings, unable to form dense coatings, etc., to reduce the difficulty of surface treatment, reduce Corrosive medium penetration, low surface treatment requirements

Active Publication Date: 2022-05-27
ZHEJIANG YUXI CORROSION CONTROL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the concrete surface is mostly treated with high-pressure fresh water (pressure not less than 20MPa), sandblasting or manual grinding. The concrete surface in the tidal range area and splash area is basically cleaned with high-pressure fresh water. Under high solid content, it has high infiltration and moisture curing (tidal range area and splash area), and takes into account the performance requirements of heavy anti-corrosion. There are various defects or single performance. For example, the patent CN105110815A discloses a permeable cross Combined concrete protective coating and its preparation method, patent CN 110484082A discloses a kind of permeable anticorrosion coating for concrete protection, and patent CN111234670A discloses a water-based transparent concrete waterproof, mildew-proof and anti-carbonization coating and its preparation method. Concrete protective coatings are all one-component water-based coatings, and their permeability and wet surface coating performance can meet the requirements, but the anti-corrosion performance of water-based coatings is average, and cannot adapt to corrosion protection in harsh environments such as marine atmospheric environments (C5)
Patent CN103224742A discloses a permeable transparent concrete protective coating and its preparation method. The concrete protective coating is a transparent fluorocarbon varnish with high VOC content, which does not meet environmental protection requirements. Furthermore, the coating does not add shielding functional materials. Can not form a dense coating, can not meet the resistance to chloride ion penetration in the marine atmospheric environment, and can not achieve wet coating

Method used

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  • Special high-permeability moisture-curing seal primer for concrete as well as preparation method and application thereof
  • Special high-permeability moisture-curing seal primer for concrete as well as preparation method and application thereof

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preparation example Construction

[0038]Another aspect of the embodiments of the present invention also provides a method for preparing the aforementioned high-penetration moisture-curing sealing primer for concrete, comprising:

[0039] Mix quaternary ammonium salt-modified epoxy resin, butanol and xylene, then add wetting and dispersing agent, graft coupling agent, anti-settling agent, reactive diluent, graphene, silver-loaded zirconium phosphate, and basalt flakes in turn. Stir and disperse, then add pigments and fillers to mix and adjust the viscosity of the obtained mixture to form the A component;

[0040] Mix phenalkamine, phenalkamide curing agent, butanol and xylene, then add wetting and dispersing agent, anti-settling agent, graphene, basalt flakes, mix, stir and disperse, then add pigment and filler to mix and adjust the viscosity of the obtained mixture, forming the B component;

[0041] And, the A component and the B component are mixed and cured to obtain a high-penetration moisture-curing seali...

Embodiment 1

[0079] In this embodiment, the special high-penetration moisture-curing sealing primer for concrete includes A component and B component, and A component is made of the following components according to the total weight of 100 parts: 30.0 parts of quaternary ammonium salt modified epoxy resin, Add 6.0 parts of alcohol and 5.0 parts of xylene to the mixing pot and stir at a speed of 3000r / min for 5 minutes. While stirring, add 1.5 parts of ANTI-TERRA-U dispersant, 0.5 part of KH560 coupling agent, and polyamide wax anti-settling agent in turn. 2.0 parts, 5.0 parts of NC-513 active diluent, 2.0 parts of silver-loaded zirconium phosphate, 1.0 parts of graphene, 12.0 parts of basalt flakes. 9.0 parts of mica powder and 8.0 parts of zinc phosphate, continue to stir at the same speed for 15 minutes, grind to a fineness of ≤80 μm by a sand mill, adjust the viscosity with xylene to a viscosity of -4 cups for 60s, cool to room temperature, filter and pack to obtain A components.

[00...

Embodiment 2

[0083] In this embodiment, the high-penetration moisture-curing sealing primer for concrete includes A component and B component, and A component is made of the following components according to the total weight of 100 parts: 39.7 parts of quaternary ammonium salt-modified epoxy resin, 10.0 parts of alcohol and 25.0 parts of xylene were added to the mixing pot and stirred at a speed of 3000r / min for 5 minutes. While stirring, 0.8 parts of ANTI-TERRA-U dispersant, 3.5 parts of KH560 coupling agent, and polyamide wax anti-settling agent were added in turn. 1.0 parts, 3.0 parts of NC-513 active diluent, 1.0 parts of silver-loaded zirconium phosphate, 1.5 parts of graphene, 4.5 parts of basalt flakes. 3.0 parts of mica powder and 2.0 parts of zinc phosphate, continue to stir at the same speed for 15min, grind to a fineness of ≤80μm by a sand mill, adjust the viscosity with xylene to a viscosity of -4 cups for 30s, cool to room temperature, filter and pack to obtain A components. ...

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Abstract

The invention discloses a special high-permeability moisture-curing seal primer for concrete as well as a preparation method and application of the special high-permeability moisture-curing seal primer. The special high-permeation type moist curing seal primer for the concrete comprises a component A and a component B, the component A comprises quaternary ammonium salt modified epoxy resin, graphene, basalt scales, silver-loaded zirconium phosphate, a wetting dispersant, a grafting coupling agent, an anti-settling agent, a reactive diluent, a pigment filler, butanol and xylene; the component B comprises phenolic aldehyde amine, phenolic aldehyde amide, graphene, basalt scales, a wetting dispersant, an anti-settling agent, a pigment filler, butanol and xylene. The special high-permeation type moist curing seal primer for the concrete, provided by the invention, is green and environment-friendly, has low surface treatment requirements on a matrix, can be moist and cured, and can realize single-time coating thick film, and meanwhile, a prepared coating can be used for surface protection of a concrete matrix in severe environments such as a marine environment and the like.

Description

technical field [0001] The invention belongs to the technical field of concrete surface protection, and in particular relates to a high-penetration moisture-curing sealing primer for concrete and a preparation method and application thereof. Background technique [0002] With the continuous development and utilization of marine resources by human beings, the marine engineering construction industry such as seaport construction, marine tunnels, sea-crossing bridges, coastal dams and other basic industries maintain a rapid growth rate. These large-scale infrastructures basically use reinforced concrete structures. Most of them are non-removable and immovable. They are exposed to the C-5 marine atmospheric environment with the highest corrosion level in the ISO 12944-2 atmospheric environment corrosion classification. The salt and humidity are high, and they are also affected by the ebb and flow of tides. The concrete structure is easily deteriorated. It will seriously affect t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/61C09D7/62
CPCC09D163/00C09D5/08C09D7/61C09D7/62C09D7/70C08K2003/0806C08K3/042C08K7/00C08K9/12C08K3/08Y02A10/11
Inventor 蓝席建朱能杰王立平吴斌严明龙朱小波
Owner ZHEJIANG YUXI CORROSION CONTROL CORP
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