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Process for preparing rust-bearing rust-proof heavy-duty coating

A technology of anti-rust with rust and preparation process, which is applied in the direction of anti-corrosion coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve problems such as difficult to determine the amount and type of chelating agent added, and different forms of metal rust and rust. Achieve the effects of prolonging the protection time, less entanglement of molecular chains and small radius of gyration

Active Publication Date: 2013-05-29
PENGLAI WEIYANG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is to add a chelating agent to the paint. The same problem is that the content of the metal rust and the form of the rust are different. It is difficult to determine the amount and type of the chelating agent.

Method used

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  • Process for preparing rust-bearing rust-proof heavy-duty coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation process of one-component rust paint includes the following process:

[0036] 1. Stir

[0037]Put the additives and solvents into the mixer for high-speed stirring. The linear speed of the mixer is controlled at 15-25 m / s. After stirring for 5-15 minutes, add pigments and special pigments, and the quality of the four additives, solvents, pigments, and special pigments The ratio is (0.1-3): (10-30): (6-40): (8-15), mixing and stirring for 15-60 minutes;

[0038] Among them, the auxiliary agent is composed of water remover, chelating agent, polycarboxylate dispersant, silicone defoamer, modified urea anti-sedimentation agent according to the mass ratio (0.6-1.1): (0.3-7): ( 0.3-0.5): (0.1-0.15): (0.2-0.5) mixed;

[0039] The dewatering agent is any one or a mixture of oxazolidine and calcium chloride; the chelating agent is calcium polyphosphate, aminotriacetic acid, monoammonium citrate, hydroxyethylethylenediaminetriacetic acid, hydrolyzed polymalay An...

Embodiment 2

[0060] The preparation technology of two-component band rust paint, its difference with embodiment 1 is:

[0061] 4. Preparation of resin

[0062] Preparation of ZY-2 resin: react heterocyclic compound, acrylic resin, and epoxy resin in a mass ratio of (10-30): (20-80): (12-30) to form an interpenetrating network to construct a new polymer resin That is, acrylic acid modified epoxy interpenetrating network polymer resin, the reaction temperature is controlled at 80-210°C, and the reaction time is 220-320 minutes. The heterocyclic compounds are lactone compounds, lactam compounds, lactan compounds, pyridine Any one or a mixture of two or three of compounds, pyrrole compounds, and furan compounds;

[0063] 5. Coating preparation

[0064] Add ZY-2 resin, that is, acrylic modified epoxy interpenetrating network polymer resin and anti-rust and rust-removing agent to the mixture obtained in step 3 in order to prepare the coating. The mass ratio of the three is (30-70): (3 -20): (...

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Abstract

The invention relates to a process for preparing a rust-bearing rust-proof heavy-duty coating and belongs to the technical field of rust-bearing rust-proof heavy-duty coating preparation. The process comprises the following steps: 1) stirring; 2) grinding; 3) dispersing; 4) preparing a resin; 5) preparing the coating; and 6) stirring. The production process is simple and quick, and the produced coating has high permeability, high solid content and low viscosity and can passivate active and harmful iron compounds in a rust layer into harmless fillers.

Description

technical field [0001] The invention relates to a preparation process of a rust-resistant anti-rust heavy-duty coating, belonging to the technical field of preparation technology of rust-resistant anti-rust heavy-duty coatings. Background technique [0002] At present, many industries require a large number of anti-corrosion projects, many of which cannot be painted in a state of complete rust removal, because rust is a loose, porous, and constantly developing (expanding) substance, which may contain water And inorganic salts, if the steel surface is painted without cleaning, the metal will continue to undergo electrochemical reactions in the presence of water and inorganic salts to generate new rust, destroy the surface paint film, and cause the paint to lose its protective effect on the metal. [0003] In order to obtain excellent corrosion resistance, the surface treatment of its steel structure is a very important link. The rust on the substrate must be removed before ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D123/16C09D175/04C09D133/12C09D163/00C09D7/12C09D5/08
Inventor 孟声徐强曲杰
Owner PENGLAI WEIYANG NEW MATERIALS
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