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Water-based epoxy thick slurry anticorrosive paint as well as preparation method and application thereof

A technology of water-based epoxy and water-based epoxy resin, applied in anti-corrosion coatings, epoxy resin coatings, pigment pastes, etc., can solve the problems of short storage period of coatings, achieve excellent anti-corrosion performance, improve utilization rate, and good anti-rust The effect of action

Active Publication Date: 2019-06-14
SHANGHAI ZHENHUA HEAVY IND CHANGZHOU COATINGS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By optimizing the new anti-rust pigments and improving the existing process, the anti-rust pigments, pigments and fillers are prepared into water-based slurry, and then added to the curing agent component, which solves the problem that conventional anti-rust pigments are easy to use in epoxy emulsions. Promote the ring-opening polymerization of epoxy, leading to the technical problem of short shelf life of coatings

Method used

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  • Water-based epoxy thick slurry anticorrosive paint as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Preparation of water-based slurry

[0028] ①Add 25.5 parts of deionized water, 7.5 parts of propylene glycol methyl ether, and 2 parts of dispersant into the mixing tank, and disperse for 5 minutes at a stirring speed of 300r / min.

[0029] ② Add 0.3 parts of defoamer and 1.2 parts of thixotropic agent, and disperse at medium speed (600r / min) for 10 minutes;

[0030] ③Finally, 12 parts of red iron oxide, 15 parts of modified zinc phosphomolybdate, and 35 parts of precipitated barium sulfate were put in, and dispersed at high speed (1500r / min) for 30 minutes. Grind the uniformly mixed material until the fineness is qualified (fineness ≤ 50 μm), and the grinding temperature is ≤ 60°C. Put the ground qualified material into the paint mixing tank, add 0.7 part of wetting agent, 0.8 part of anti-flash rust agent, etc. while stirring, and stir evenly.

[0031] (2) Preparation of component A

[0032] Add 29 parts of water-based epoxy curing agent (Huntsman Aradur3986 cur...

Embodiment 2

[0037] (1) Preparation of water-based slurry

[0038] ① Add 25.5 parts of deionized water, 7.5 parts of propylene glycol methyl ether, and 2 parts of dispersant into the mixing tank, and disperse for 5 minutes at a stirring speed of 400r / min.

[0039] ② Add 0.3 parts of defoamer and 1.2 parts of thixotropic agent, and disperse at medium speed (600r / min) for 10 minutes;

[0040] ③Finally, 12 parts of red iron oxide, 15 parts of modified zinc phosphomolybdate, and 35 parts of precipitated barium sulfate were put in, and dispersed at high speed (1500r / min) for 40 minutes. Grind the uniformly mixed material until the fineness is qualified (fineness ≤ 50 μm), and the grinding temperature is ≤ 60°C. Put the ground qualified material into the paint mixing tank, add 0.7 part of wetting agent, 0.8 part of anti-flash rust agent, etc. while stirring, and stir evenly.

[0041] (2) Preparation of component A

[0042]Mix 10 parts of water-based epoxy curing agent (Cytec BECKOPOX TM EH ...

Embodiment 3

[0047] ①Add 25.5 parts of deionized water, 7.5 parts of propylene glycol methyl ether, and 2 parts of dispersant into the mixing tank, and disperse for 5 minutes at a stirring speed of 300r / min.

[0048] ② Add 0.3 parts of defoamer and 1.2 parts of thixotropic agent, and disperse at medium speed (600r / min) for 10 minutes;

[0049] ③Finally, 12 parts of red iron oxide, 15 parts of modified zinc phosphomolybdate, and 35 parts of precipitated barium sulfate were put in, and dispersed at high speed (1500r / min) for 30 minutes. Grind the uniformly mixed material until the fineness is qualified (fineness ≤ 50 μm), and the grinding temperature is ≤ 60°C. Put the ground qualified material into the paint mixing tank, add 0.7 part of wetting agent, 0.8 part of anti-flash rust agent, etc. while stirring, and stir evenly.

[0050] (2) Preparation of component A

[0051] Add 23 parts of water-based epoxy curing agent (Momentive EPlKURE 6870-W-53) and 77 parts of water-based slurry into th...

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Abstract

The invention belongs to the field of chemical coating, and particularly provides water-based epoxy thick slurry anticorrosive paint as well as a preparation method and application thereof, an anti-rust pigment, a pigment and a filler are prepared into water-based slurry by optimizing the novel anti-rust pigment and improving the existing process, the water-based slurry is added into a curing agent component, and the technical problem that the storage period of the paint is short due to the fact that the conventional anti-rust pigment is easily to promote epoxy ring opening polymerization reaction in an epoxy emulsion is solved. The prepared epoxy thick slurry anticorrosive paint has wide adhesive force and can be used for corrosion prevention of carbon steel, cold rolled steel, aluminum materials, machine processing surfaces, zinc-plated steel and the surface of each metal substrates hot-spraying zinc and other mild to medium-corrosion environments, and the coating has good salt-fog resistance and excellent corrosion resistance.

Description

technical field [0001] The invention belongs to the field of chemical coating, in particular to a water-based epoxy thick build anticorrosive paint and its preparation method and application. Background technique [0002] Metal corrosion is ubiquitous in the current natural environment and equipment operating environment, so it has received more and more attention from relevant research departments, and puts forward higher requirements for metal protection in harsh corrosive environments. There are many ways to prevent metal corrosion, such as the selection of corrosion-resistant alloys, electroplating and cathodic protection, but these methods are expensive to use and are not economically cost-effective. The paint coating anti-corrosion is the most effective and economical method, and the application is also the most common. First of all, it is easy to construct, has wide adaptability, is not restricted by the area and shape of the equipment, and has low repainting and rep...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/20C09D5/08C09D17/00
Inventor 杨敏辉蒋玲虎刘政超王楠
Owner SHANGHAI ZHENHUA HEAVY IND CHANGZHOU COATINGS CO LTD