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Zinc-rich primer using activation technique

A zinc-rich primer and technology, applied in coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of reducing the coating film and affecting the anti-corrosion life of the coating film, so as to reduce VOC, increase the anti-corrosion life, and improve the protection The effect of aging

Inactive Publication Date: 2015-07-01
XINHE NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase of zinc powder content, not only the improvement of anti-corrosion performance, but also the decrease of resin content will reduce the mechanical properties of the coating film, such as impact resistance, crack resistance, adhesion, etc., thus affecting the coating film. Anti-corrosion life

Method used

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  • Zinc-rich primer using activation technique

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The zinc-rich primer using activation technology of the present invention is composed of component A and component B; wherein component A is composed of the following raw materials in weight percentage: matrix resin 1%, anti-settling agent 1%, thickener 1% %, desiccant 0.5%, zinc powder 83.5%, activator 1%, toughening agent 2%, solvent 10%; component B is composed of curing agent; the weight ratio of component A to component B is 5:1 .

[0026] The matrix resin is epoxy resin.

[0027] The anti-settling agent is polyethylene wax, fumed silica and bentonite.

[0028] The thickener is bentonite and polyamide wax.

[0029] The desiccant is tris(dimethylaminomethyl)phenol.

[0030] The activator is graphite or mica.

[0031] The toughening agent is hollow glass microspheres or phenolic resin.

[0032] Described solvent is toluene, xylene, butanol or butyl acetate.

[0033] The curing agent is polyamide.

Embodiment 2

[0035] The zinc-rich primer using activation technology of the present invention is composed of component A and component B; wherein component A is made up of the following raw materials in weight percentage: matrix resin 5%, anti-settling agent 0.1%, thickener 2 %, desiccant 0.1%, zinc powder 80%, activator 5%, toughening agent 0.5%, solvent 7.3%; component B is composed of curing agent; the weight ratio of component A to component B is 10:1 .

[0036] The matrix resin is epoxy resin.

[0037] The anti-settling agent is polyethylene wax, fumed silica and bentonite.

[0038] The thickener is bentonite and polyamide wax.

[0039] The desiccant is tris(dimethylaminomethyl)phenol.

[0040] The activator is graphite or mica.

[0041] The toughening agent is hollow glass microspheres or phenolic resin.

[0042] Described solvent is toluene, xylene, butanol or butyl acetate.

[0043] The curing agent is polyamide.

Embodiment 3

[0045] The zinc-rich primer using activation technology of the present invention is composed of component A and component B; wherein component A is made up of the following raw materials in weight percentage: matrix resin 3.8%, anti-settling agent 0.5%, thickener 1.5% %, desiccant 0.2%, zinc powder 82%, activator 2.5%, toughening agent 1%, solvent 8.5%; component B is composed of curing agent; the weight ratio of component A to component B is 8.5:1 .

[0046] The matrix resin is epoxy resin.

[0047] The anti-settling agent is polyethylene wax, fumed silica and bentonite.

[0048] The thickener is bentonite and polyamide wax.

[0049] The desiccant is tris(dimethylaminomethyl)phenol.

[0050] The activator is graphite or mica.

[0051] The toughening agent is hollow glass microspheres or phenolic resin.

[0052] Described solvent is toluene, xylene, butanol or butyl acetate.

[0053] The curing agent is polyamide.

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Abstract

The invention discloses a zinc-rich primer using an activation technique. The zinc-rich primer is composed of a component A and a component B. The component A is prepared from the following raw materials in percentage by weight: 1-5% of matrix resin, 0.1-1% of anti-settling agent, 1-2% of thickener, 0.1-0.5% of drier, 80-85% of zinc powder, 1-5% of activator, 0.5-2% of toughener and 5-10% of solvent. The component B is composed of a curing agent. The weight ratio of the component A to the component B is (5-10):1. The salt-mist-resistance of the zinc-rich primer can reach 1200 hours above, and the inorganic zinc-rich cracking resistance can reach 260 micrometers without cracking.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion primers, in particular to a zinc-rich primer using activation technology. Background technique [0002] Steel structure anti-corrosion coating system, zinc-rich primer is a product with excellent anti-rust effect and widely used. Commonly used are epoxy zinc-rich primers, alcohol-soluble inorganic zinc-rich primers, and water-based inorganic zinc-rich primers. Zinc-rich primer is a type of anti-corrosion coating product that uses zinc powder with a sacrificial anode function as the main anti-rust pigment. Because zinc-rich paint contains a large amount of zinc powder particles, it is in close contact with the steel surface and plays the role of sacrificial anode protection. Therefore, according to the electrochemical anticorrosion mechanism, the zinc powder content in the coating film plays a vital role in the anticorrosion performance of the coating film. However, with the increase of z...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/12
CPCC09D163/00C08L2205/025C08L2205/035C09D5/106C09D7/61C09D7/63C09D7/65C08L23/06C08L77/00C08K13/02C08K3/36C08K3/346C08K5/17
Inventor 王诗榕侯保荣李言涛王书传
Owner XINHE NEW MATERIALS CO LTD
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