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Epoxy zinc-rich paint

An epoxy zinc-rich coating and coating technology, applied in the field of coatings, can solve the problems of corrosion resistance, chemical resistance and solvent resistance, the impact resistance of coatings, general adhesion and other problems, to achieve excellent adhesion, The effect of excellent anti-rust performance and good film corrosion resistance

Inactive Publication Date: 2014-08-06
TIANCHANG JULONG TRAVEL PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The curing agent is a fat-modified or polyamide-modified water-based epoxy curing agent. The impact resistance and adhesion of the prepared coating are general, and the corrosion resistance, chemical resistance and solvent resistance are not mentioned.

Method used

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  • Epoxy zinc-rich paint
  • Epoxy zinc-rich paint
  • Epoxy zinc-rich paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In the present embodiment, prepare described epoxy zinc-rich paint, by weight, component A contains:

[0033] 75% E-20 Epoxy 5

[0034] Zinc powder 80

[0035] Methyl isobutyl ketone 23,

[0036] Part B contains:

[0037] NX-2018 curing agent 5

[0038] Xylene 60,

[0039] The mass ratio of component A to component B is 2:1.

Embodiment 2

[0041] In the present embodiment, to prepare the described epoxy zinc-rich paint, by weight, component A contains:

[0042] 75% E-20 epoxy resin 10

[0043] Zinc powder 60

[0044] Xylene 40,

[0045] Part B contains:

[0046] NX-2018 curing agent 22

[0047] n-Butanol 74,

[0048] The mass ratio of component A to component B is 5:1.

Embodiment 3

[0050] In the present embodiment, to prepare the described epoxy zinc-rich paint, by weight, component A contains:

[0051] 75% E-20 epoxy resin 20

[0052] Zinc powder 90

[0053] n-Butanol 15,

[0054] Part B contains:

[0055] NX-2018 curing agent 15

[0056] Xylene 90,

[0057] The mass ratio of component A to component B is 8:1.

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Abstract

The invention relates to epoxy zinc-rich paint. The epoxy zinc-rich paint is characterized in that epoxy resin as a base material, cashew oil polyamide as a curing agent, ultrafine zinc powder as a main antirust pigment, and certain amounts of auxiliary agents and solvents are mixed according to a certain ratio and are prepared into the epoxy zinc-rich paint. The epoxy zinc-rich paint provided by the invention is suitable for being used by a dip-coating method. A coated epoxy zinc-rich paint film has excellent corrosion resistance, chemical resistance and solvent resistance.

Description

technical field [0001] The invention relates to a coating, in particular to an epoxy zinc-rich coating suitable for dip coating. Background technique [0002] In the anti-corrosion coating system of steel structure, the role of zinc-rich primer is very important. It must have good adhesion to steel and can play an excellent anti-rust effect. Epoxy zinc-rich primer is one of the commonly used primers in my country's heavy anti-corrosion coating system. Its anti-corrosion effect is to protect the steel substrate by corroding sacrificial zinc powder in a corrosive environment. The anti-corrosion mechanism of epoxy zinc-rich primer can be summarized into two points: [0003] One epoxy zinc-rich primer plays an electrochemical protection role. Since zinc is more active than iron, it is easy to lose electrons. In the early stage of corrosion, zinc powder and steel substrate form a primary battery. The electrode potential of zinc is negative than that of iron. Zinc is the anode ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D5/10C09D7/12
Inventor 戴宇钧
Owner TIANCHANG JULONG TRAVEL PAINT
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