CN103668158A - Method for metal surface passivation - Google Patents

Abstract

The invention discloses a method for metal surface passivation, and the method comprises the following steps: 1) mixing, by mass, 1-2 parts of quaternized polyethylenimine, 1-2 parts of hydroxypropyl methyl cellulose, 1-2 parts of polyethyleneimine, 1-2 parts of quaternized polyvinylamine, 1-2 parts of alkoxylated polyethyleneimine, 1-2 parts of polyvinyl imidazole, 80 parts of water, 1-2 parts of fatty alcohol-polyoxyethylene ether and 2-3 parts of polyglycerol monostearate, then adding 20-60 parts of a copolymer synthesized by acrylic acid, vinyl phosphonic acid and hydroxyethyl acrylate to produce a conditioning fluid with the pH value of 2.3 - 2.5; and 2) applying a metal surface with the conditioning fluid in a manner of a wet film. By the method for the metal surface passivation, a fully crosslinkedstable passivation film coating layer is formed on the metal surface.

Description

The method of passivating metallic surfaces

Technical field

The present invention relates to the method for passivating metallic surfaces.

Background technology

The method of current passivating metallic surfaces, it is not very desirable on metallic surface, forming passivation layer.

Summary of the invention

The object of the present invention is to provide a kind of method of passivating metallic surfaces, on metallic surface, form full cross-linked, the stable passivation coat of filming.

For achieving the above object, technical scheme of the present invention is the method for a kind of passivating metallic surfaces of design, comprises the steps:

1) get 1-2 mass parts Quaternary Polyethyleneimine, 1-2 mass parts Vltra tears, 1-2 mass parts polymine, the quaternized polyvinylamine of 1-2 mass parts, 1-2 mass parts alkoxylate polymine, 1-2 mass parts polyvinyl imidazol, 80 mass parts water, 1-2 mass parts fatty alcohol-polyoxyethylene ether, the mixing of 2-3 mass parts Polyglycerine monostearate, add again 20-60 mass parts by the synthetic multipolymer of vinylformic acid, vinyl phosphonate and Hydroxyethyl acrylate, make the treatment solution that pH value is 2.3-2.5;

2) treatment solution is applied to metallic surface with wet film form.

Advantage of the present invention and beneficial effect are: a kind of method of passivating metallic surfaces is provided, forms full cross-linked, the stable passivation coat of filming on metallic surface.

Embodiment

Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.

The concrete technical scheme of implementing of the present invention is:

Embodiment 1

A method for passivating metallic surfaces, comprises the steps:

1) get 1 mass parts Quaternary Polyethyleneimine, 1 mass parts Vltra tears, 1 mass parts polymine, the quaternized polyvinylamine of 1 mass parts, 1 mass parts alkoxylate polymine, 1 mass parts polyvinyl imidazol, 80 mass parts water, 1 mass parts fatty alcohol-polyoxyethylene ether, 2 mass parts Polyglycerine monostearates mixing, add again 20 mass parts by the synthetic multipolymer of vinylformic acid, vinyl phosphonate and Hydroxyethyl acrylate, make pH value and be 2.3 treatment solution;

2) treatment solution is applied to metallic surface with wet film form.

Embodiment 2

A method for passivating metallic surfaces, comprises the steps:

1) get 2 mass parts Quaternary Polyethyleneimines, 2 mass parts Vltra tearss, 2 mass parts polymines, the quaternized polyvinylamine of 2 mass parts, 2 mass parts alkoxylate polymines, 2 mass parts polyvinyl imidazols, 80 mass parts water, 2 mass parts fatty alcohol-polyoxyethylene ether, the mixing of 2-3 mass parts Polyglycerine monostearate, add again 60 mass parts by the synthetic multipolymer of vinylformic acid, vinyl phosphonate and Hydroxyethyl acrylate, make pH value and be 2.5 treatment solution;

2) treatment solution is applied to metallic surface with wet film form.

Embodiment 3

A method for passivating metallic surfaces, comprises the steps:

1) get 1.2 mass parts Quaternary Polyethyleneimines, 1.2 mass parts Vltra tearss, 1.2 mass parts polymines, the quaternized polyvinylamine of 1.2 mass parts, 1.2 mass parts alkoxylate polymines, 1.2 mass parts polyvinyl imidazols, 80 mass parts water, 1.2 mass parts fatty alcohol-polyoxyethylene ether, 2.3 mass parts Polyglycerine monostearates mixing, add again 40 mass parts by the synthetic multipolymer of vinylformic acid, vinyl phosphonate and Hydroxyethyl acrylate, make pH value and be 2.4 treatment solution;

2) treatment solution is applied to metallic surface with wet film form.

The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (1)

1. the method for passivating metallic surfaces, is characterized in that, comprises the steps:

1) get 1-2 mass parts Quaternary Polyethyleneimine, 1-2 mass parts Vltra tears, 1-2 mass parts polymine, the quaternized polyvinylamine of 1-2 mass parts, 1-2 mass parts alkoxylate polymine, 1-2 mass parts polyvinyl imidazol, 80 mass parts water, 1-2 mass parts fatty alcohol-polyoxyethylene ether, the mixing of 2-3 mass parts Polyglycerine monostearate, add again 20-60 mass parts by the synthetic multipolymer of vinylformic acid, vinyl phosphonate and Hydroxyethyl acrylate, make the treatment solution that pH value is 2.3-2.5;

2) treatment solution is applied to metallic surface with wet film form.