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Low-surface treatment heavy anti-corrosion coating as well as preparation method and application thereof

A low-surface treatment, heavy-duty anti-corrosion technology, applied in the field of coatings, can solve the problems that the anti-corrosion effect cannot reach the expected effect, it is difficult to reach the base surface treatment level, and the solvent content is high, and achieve excellent permeability and adhesion, adhesion and Good salt spray resistance and low surface treatment requirements

Active Publication Date: 2021-06-29
河北涂铠新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The development of good high-corrosion-resistant resins and new pigments and fillers is the key to the development of heavy-duty anti-corrosion coatings. Careful surface cleaning of the coating substrate is the basis for heavy-duty anti-corrosion coatings to reach their service life. In practical projects, most outdoor construction It is difficult to achieve the ideal base surface treatment level in the maintenance and maintenance projects. Some areas and fields have banned open-air sandblasting operations. Among the existing coatings, there are also some materials that can meet the construction requirements for low surface treatment, but there are some solvents. High, while the anti-corrosion effect can not reach the expected effect

Method used

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  • Low-surface treatment heavy anti-corrosion coating as well as preparation method and application thereof

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preparation example Construction

[0057] The present invention also provides a preparation method of low surface treatment heavy-duty anti-corrosion coating, comprising the steps of:

[0058] (1) Mix the first film-forming resin, the second film-forming resin, epoxy diluent, hydrocarbon resin, coupling agent and auxiliary agent, stir at 100-500rpm for 5-15min, then add titanium dioxide, mineral Powder, anti-rust pigment, inorganic powder, pigment, adjust the rotation speed at 1000-1500rpm, stir for 30-40min, grind until the particle size is 10-40μm, and filter to obtain component A;

[0059] (2) Mix the first curing agent, the second curing agent, modifier, accelerator and adhesion promoter, and stir for 30 to 40 minutes at a rotation speed of 100 to 800 rpm to obtain component B;

[0060] (3) Mix component A and component B to obtain a low surface treatment heavy-duty anti-corrosion coating.

[0061] The present invention also provides an application of a low-surface-treatment heavy-duty anti-corrosion paint...

Embodiment 1

[0064] The invention provides a low-surface treatment heavy-duty anti-corrosion coating, which is prepared from raw materials containing the following parts by mass:

[0065] Component A: 18 parts of tung oil-based epoxy resin, 12 parts of tung oil modified phenolic epoxy resin, 10 parts of gallic acid-based epoxy resin, 1 part of cashew nut shell oil diluent, 10 parts of xylene formaldehyde resin, rutile titanium dioxide 20 parts, 5 parts of mica powder, 25 parts of zinc phosphate, 1 part of silicon dioxide powder, 5 parts of 3-glycidyl etheroxypropyl trimethoxysilane, 1 part of inorganic pigment, 3 parts of corrosion inhibitor, defoamer 2 copies;

[0066] Component B: 5 parts of fatty amine, 25 parts of cashew shell oil modified polyamide, 2 parts of ketimine, 3 parts of benzyl alcohol, 0.5 part of aminosilane;

[0067] Wherein, the weight ratio of A component and B component is 5:1.

[0068] The present invention also provides a preparation method of low surface treatment...

Embodiment 2

[0073] The invention provides a low-surface treatment heavy-duty anti-corrosion coating, which is prepared from raw materials containing the following parts by mass:

[0074] Component A: 10 parts of tung oil-based epoxy resin, 10 parts of tung oil modified phenolic epoxy resin, 20 parts of itaconic acid-based epoxy resin, 15 parts of cashew nut shell oil diluent, 1 part of C9 petroleum resin, phenol modified petroleum 1 part of resin, 1 part of rutile titanium dioxide, 15 parts of glass flakes, 20 parts of zinc phosphate, 5 parts of zinc molybdate, 10 parts of silicon dioxide powder, 1 part of 3-glycidyl etheroxypropyl trimethoxysilane, 5 parts of inorganic pigment, 1 part of corrosion inhibitor;

[0075] Component B: 5 parts of fatty amine, 25 parts of cashew nut shell oil modified phenalkamine, 1 part of ketimine, 2 parts of benzyl alcohol, 1 part of salicylic acid, 5 parts of aminosilane;

[0076] Wherein, the weight ratio of A component and B component is 6:1.

[0077] ...

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Abstract

The invention belongs to the technical field of coatings, and discloses a low-surface treatment heavy anti-corrosion coating as well as a preparation method and an application thereof. The coating is prepared from the following raw materials: a component A: first film-forming resin, second film-forming resin, an epoxy diluent, hydrocarbon resin, titanium dioxide, mineral powder, an anti-rust pigment, inorganic matter powder, a coupling agent, a pigment and an auxiliary agent; and the component B comprises a first curing agent, a second curing agent, a modifier, an accelerant and an adhesion promoter. The coating disclosed by the invention takes the bio-based resin as a main film-forming substance, has higher environmental protection performance, is low in base surface treatment requirement, can be coated in a state with water, moisture and rust, can independently form a coating, can also be compounded with weather-resistant finish paint, and is long in anti-corrosion time and good in adhesive force and salt spray resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a low-surface-treatment heavy-duty anti-corrosion coating and a preparation method and application thereof. Background technique [0002] Bio-based polymer materials use renewable resources as the main raw materials. They are green, environmentally friendly and renewable, and can effectively alleviate the problems of fossil energy crisis and environmental pollution. They are an important development in the field of polymer materials and heavy-duty anti-corrosion coatings. It is also one of the important means to realize "energy saving and emission reduction" and develop "low-carbon economy", which has important practical value and broad development space. Nevertheless, designing and synthesizing bio-based monomers that can meet their high-performance and functional requirements is still a major challenge, and it is the key to promoting the application range of bio-based polymer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D163/04C09D161/18C09D157/02C09D5/08C09D5/10C09D7/61
CPCC09D163/00C09D163/04C09D5/08C09D7/61C09D7/70C09D5/103C08L2205/025C08L2205/035C08K2003/2241C08K2003/328C08K2003/0812C08L63/00C08L63/04C08L61/18C08L57/02C08K3/22C08K3/34C08K3/32C08K3/36C08K7/00C08K3/40C08K3/24C08K3/08
Inventor 段光远张兴华
Owner 河北涂铠新材料科技有限公司
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