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Waterborne epoxy zinc-rich primer

A water-based epoxy zinc-rich, water-based epoxy resin technology, applied in the direction of epoxy resin coatings, coatings, anti-corrosion coatings, etc., can solve problems such as easy precipitation, improve entanglement performance, prevent zinc powder precipitation, improve The effect of corrosion resistance

Inactive Publication Date: 2016-08-10
江苏永阳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 water-based epoxy zinc-rich primer requires more than 50% zinc powder, and the specific gravity of zinc powder is 7.05, which is prone to precipitation in the coating; in addition, because zinc powder is relatively active, it is easy to react with water and release hydrogen, so it is difficult to put zinc powder on the Two-component water-based epoxy zinc-rich primer in resin

Method used

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  • Waterborne epoxy zinc-rich primer

Examples

Experimental program
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Effect test

Embodiment 1

[0018] The waterborne epoxy zinc-rich primer provided in the present embodiment comprises A component and B component, and wherein, by mass parts, each component distribution ratio is as follows:

[0019] Component A includes: 17 parts of water-based epoxy resin, 0.1 part of water-based polysiloxane, and 83 parts of anti-corrosion mixed slurry. Among them, the anti-corrosion mixed slurry is composed of 70 parts of zinc powder, 10 parts of organic bentonite, 10 parts of diatomite and 10 parts of aluminum silicate fiber in parts by mass.

[0020] Component B includes: 50 parts of water-based epoxy curing agent, 50 parts of deionized water, and 0.8 parts of substrate wetting agent.

[0021] The preparation method of above-mentioned waterborne epoxy zinc-rich primer comprises the steps:

[0022] (1) Add water-based epoxy resin into the stock preparation pot according to the above-mentioned parts by mass, and then add water-based polysiloxane and anti-corrosion mixed slurry at a s...

Embodiment 2

[0026] The waterborne epoxy zinc-rich primer provided in the present embodiment comprises A component and B component, and wherein, by mass parts, each component distribution ratio is as follows:

[0027] Component A includes: 18 parts of water-based epoxy resin, 0.15 parts of water-based polysiloxane, and 82 parts of anti-corrosion mixed slurry. Among them, the anti-corrosion mixed slurry is composed of 60 parts of zinc powder, 5 parts of organic bentonite, 15 parts of diatomite and 20 parts of aluminum silicate fiber in parts by mass.

[0028] Component B includes: 52 parts of water-based epoxy curing agent, 48 parts of deionized water, and 1.2 parts of substrate wetting agent.

[0029] The preparation method of waterborne epoxy zinc-rich primer is the same as embodiment 1

Embodiment 3

[0031] The waterborne epoxy zinc-rich primer provided in the present embodiment comprises A component and B component, and wherein, by mass parts, each component distribution ratio is as follows:

[0032] Component A includes: 18 parts of water-based epoxy resin, 0.2 parts of water-based polysiloxane, and 82 parts of anti-corrosion mixed slurry. Among them, the anti-corrosion mixed slurry is composed of 55 parts of zinc powder, 5 parts of organic bentonite, 15 parts of diatomite and 25 parts of aluminum silicate fiber in parts by mass.

[0033] Component B includes: 52 parts of water-based epoxy curing agent, 48 parts of deionized water, and 1.2 parts of substrate wetting agent.

[0034] The preparation method of waterborne epoxy zinc-rich primer is the same as embodiment 1

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Abstract

The invention belongs to the field of chemical coating and particularly relates to waterborne epoxy zinc-rich primer. A waterborne cross-linking agent is added so that cross-linking density of a system can be improved and dispersing performance of powder can be improved. Diatomite and aluminum silicate are added so that the entanglement performance between high-zinc powder and resin can be further improved. Zinc powder settlement and reaction of zinc powder and water are prevented. Thus, corrosion resistance of the primer is improved.

Description

technical field [0001] The invention belongs to the field of chemical coating, in particular to a water-based epoxy zinc-rich primer. Background technique [0002] Traditional coatings are mostly solvent-based coatings, and the common varieties are epoxy, chlorinated rubber, acrylic, etc., which contain a large amount of organic solvents, which are harmful to the health of construction workers and pollute the environment. Since the early 1970s, the development of environmentally friendly anti-corrosion paints such as solvent-free, powder and water-based paints has been carried out abroad. Among them, water-based paints have been more researched because of their low cost and convenient and safe construction. [0003] The existing water-based primers at home and abroad include water-based inorganic zinc-rich primers and water-based epoxy zinc-rich primers. Water-based inorganic zinc-rich primers have excellent anti-corrosion properties, but the requirements for substrate treat...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10C09D7/12
CPCC09D163/00C09D5/106C09D7/62C09D7/65C09D7/70C08L83/04C08K9/04C08K3/346C08K2003/0893C08K3/34C08K7/10C08K9/06
Inventor 缪文明陆勇鹏
Owner 江苏永阳新材料科技有限公司