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Metal anti-corrosive primer, preparation method, application and application method thereof

A metal anti-rust and primer technology, applied in anti-corrosion coatings, coatings, pre-treatment surfaces, etc., can solve the problems of cumbersome, easy pollution, etc., to avoid pollution, good water resistance and corrosion resistance, excellent mechanical strength. Effect

Active Publication Date: 2014-09-03
北京红狮科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the technical defect that the metal surface of the existing spray ceramic coating needs to carry out loaded down with trivial details, easily polluting treatment steps, the purpose of the present invention is to provide a kind of metal antirust primer, the metal surface after adopting this primer spraying can save conventional Sand blasting treatment, direct spraying of ceramic coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1 Antirust primer for aluminum plate, preparation method and coating process

[0036] Primer composition: a, 40 parts by weight of water-dispersed epoxy resin emulsion with an epoxy equivalent of 270g / eq; b, 12 parts by weight of CYMEL 303 methoxymelamine resin; c, 5 parts by weight of ethylene glycol diglycidyl ether; d, wetting and dispersing agent BYK-1920.5 parts by weight; e, 15 parts by weight of titanium dioxide; f, 6 parts by weight of barite powder, 4 parts by weight of diatomaceous earth; g, 1 part by weight of blocked acid accelerator CYCAT-4045; h, 16 parts by weight of solvent propylene glycol methyl ether.

[0037] Primer preparation process:

[0038] (1) Grinding color paste

[0039] Put the above-mentioned four kinds of raw materials a, b, c, and d into a container, add the powders e and f under high-speed stirring at 600 rpm, disperse at high speed for 10 minutes at the same speed, and then grind them on a sand mill until fine The thicknes...

Embodiment 2

[0050] Example 2 Antirust primer for aluminum alloy profiles, preparation method and coating process

[0051] Primer composition: a, epoxy equivalent 300g / eq water dispersible epoxy resin emulsion 45 parts by weight; b, CYMEL 303 methoxymelamine resin 10 parts by weight; c, diethylene glycol diglycidyl ether 7 parts by weight; d, wetting and dispersing agent TEGO-2450.6 parts by weight; e, pigment titanium dioxide 9 parts by weight; f, 6 parts by weight of quartz powder, 5 parts by weight of diatomaceous earth; g, 0.8 parts by weight of blocked acid accelerator BYK-450; h , 8 parts by weight of solvent propylene glycol methyl ether.

[0052] Primer preparation process:

[0053] (1) Grinding color paste

[0054] Put the above-mentioned four kinds of raw materials a, b, c, and d into a container, add e and f powders under high-speed stirring at 800 rpm, disperse at high speed for 7 minutes at the same speed, and then grind them on a sand mill until fine The thickness is less ...

Embodiment 3

[0065] Example 3 Antirust primer, preparation method and coating process for steel structural profiles

[0066] Primer composition: a, 52 parts by weight of epoxy equivalent 300g / eq water-dispersed epoxy resin emulsion; b, 10 parts by weight of B-747 methoxymelamine resin; c, 4 parts by weight of neopentyl glycol diglycidyl ether ; d, wetting and dispersing agent TEGO-2450.9 parts by weight; e, pigment iron oxide red 6 parts by weight; f, 7 parts by weight of barite powder, 4 parts by weight of diatomite; g, blocked acid accelerator BYK-4501.1 parts by weight ; h, 7 parts by weight of solvent isopropanol.

[0067] Primer preparation process:

[0068] (1) Grinding color paste

[0069] Put the above-mentioned four kinds of raw materials a, b, c, and d into a container, add the powders e and f under high-speed stirring at 600 rpm, disperse at high speed for 8 minutes at the same speed, and then grind them on a sand mill until fine The thickness is less than 30μm, and the color...

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PUM

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Abstract

The present invention relates to a metal anti-corrosive primer including a water dispersion epoxy resin emulsion, an active flexibilizer, a water-soluble amino resin, a pigment, an extender pigment, an acid promoter and a dilution solvent. The present invention also provides a preparation method, applications and an application method of the metal anti-corrosive primer. The metal anti-corrosive primer can be coated on the surface of metal base materials, such as aluminium single plate, aluminium alloy section bar, steel structure section bar and the like, to form a firm and anti-corrosive membrane layer, which can replace common metal surface treatment processes, such as sand blasting, chromating and the like; save the treatment cost; avoid the environment pollution problem caused by heavy metals; and reduce the damage to operating personnel. The preparation method and the application method of the metal anti-corrosive primer have the advantages of mild reaction conditions, easy of handling, and obvious economic benefits and social benefits.

Description

technical field [0001] The invention relates to the field of paint coating, in particular to a primer for metal surface rust prevention, a preparation method and application of the primer and a usage method of the primer. Background technique [0002] Spraying ceramic coatings is one of the important surface decoration methods for metals or metal alloys such as aluminum veneers, aluminum alloy profiles, and steel structural profiles. However, due to the high rigidity and high hardness of ceramic coatings, it is easy to coat on smooth metal surfaces. Cracking, so the surface of the metal substrate must be sandblasted to improve adhesion. For some special metal coatings, such as aluminum alloy materials sprayed with PVDF fluorocarbon paint, it is necessary to use reagents containing a large amount of heavy metals for careful surface treatment, which can easily cause environmental pollution and the production cost is relatively expensive. [0003] In the past 20 years, the wat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D161/28C09D5/08C09D5/10B05D7/16B05D3/00B05D3/02
Inventor 黄之祥王超
Owner 北京红狮科技发展有限公司
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