CN103497550A - A kind of metal waterproof coating and preparation method thereof - Google Patents

Abstract

The invention discloses a metal waterproof coating which comprises the following components in parts by weight: 35-55 parts of acrylic acid, 15-20 parts of aluminum chloride, 20-22 parts of styrene-acrylic emulsion, 5-8 parts of silicone weather-resistant adhesive, 6-10 parts of polyurethane, 3-5 parts of vinyl caproate, 2-3 parts of isooctanol, 1-2 parts of nano silicon dioxide and 20-30 parts of water. The invention has the beneficial effects that: the metal waterproof coating provided by the invention can effectively prevent water from corroding the surface of metal, has strong adhesive force, does not fall off after being soaked in water for a long time, improves the protection capability of the metal against water corrosion, and is proved by factory experiments to have the water corrosion resistance effect 3-4 times that of similar products.

Description

A kind of metal waterproof coating and preparation method thereof

technical field

The invention relates to the field of metal protection, in particular to a metal waterproof coating and a preparation method thereof.

Background technique

Painted on the metal surface, a thin film is formed by the volatilization of solvent or water or the chemical reaction of the two components, which isolates the metal surface from water and thus plays a waterproof role. These viscous liquids painted are called metal waterproof coating. The waterproof film formed after the waterproof coating is cured has certain extensibility, elastic-plasticity, crack resistance, impermeability and weather resistance, and can play the role of waterproof, anti-seepage and protection. The waterproof coating has good temperature adaptability, easy operation, easy repair and maintenance. However, the previous metal waterproof coatings have higher requirements on the spraying process, and the waterproof effect cannot meet expectations.

Contents of the invention

The object of the present invention is to provide a metal waterproof coating with good waterproof effect and strong adhesion for the above-mentioned defects in the prior art.

In order to achieve the above object, the technical solution provided by the present invention is: a metal waterproof coating, including the following components by weight: 35-55 parts of acrylic acid, 15-20 parts of aluminum chloride, 20-22 parts of styrene-acrylic emulsion 5-8 parts of silicone weather-resistant adhesive, 6-10 parts of polyurethane, 3-5 parts of vinyl caproate, 2-3 parts of isooctyl alcohol, 1-2 parts of nano-silica, and 20-30 parts of water.

Further, the above-mentioned metal waterproof coating includes the following components in parts by weight: 40 parts of acrylic acid, 18 parts of aluminum chloride, 21 parts of styrene-acrylic emulsion, 6 parts of silicone weather-resistant adhesive, 8 parts of polyurethane, 4 parts of vinyl acetate, 2 parts of isooctyl alcohol, 1 part of nano silicon dioxide, 25 parts of water.

Second object of the present invention is to provide the preparation method of above-mentioned a kind of metal waterproof paint, comprise the following steps:

1) Mix acrylic acid, aluminum chloride and styrene-acrylic emulsion according to the ratio, and stir evenly, and then stir evenly again after standing for 12 hours to obtain the main ingredient mixture;

2) Mix polyurethane, vinyl caproate, isooctyl alcohol, nano silicon dioxide and water according to the proportion, and stir evenly to obtain the auxiliary material mixture;

3) Slowly add the auxiliary material mixture obtained in step 2) to the main material mixture obtained in step 1), stir evenly and heat to 60°C-80°C, then add the proportioning amount of silicone weather-resistant adhesive, and stir slowly until Cool to room temperature to obtain metal waterproof coating.

The beneficial effects of the present invention are: the metal waterproof coating provided by the present invention can effectively protect the metal surface from being eroded by water, and at the same time, its adhesion is strong, and it will not fall off after soaking in water for a long time, which improves the metal's resistance to water erosion. Protection ability, as proved by factory experiments, the anti-water erosion effect is 3-4 times that of similar products.

Detailed ways

Example 1:

A metal waterproof coating, comprising the following components by weight: 35 parts of acrylic acid, 15 parts of aluminum chloride, 20 parts of styrene-acrylic emulsion, 5 parts of silicone weather-resistant adhesive, 6 parts of polyurethane, and 3 parts of vinyl caproate , 2 parts of isooctyl alcohol, 1 part of nano silicon dioxide, 20 parts of water.

The preparation method of above-mentioned a kind of metallic waterproof paint, comprises the following steps:

1) Mix acrylic acid, aluminum chloride and styrene-acrylic emulsion according to the ratio, and stir evenly, and then stir evenly again after standing for 12 hours to obtain the main ingredient mixture;

2) Mix polyurethane, vinyl caproate, isooctyl alcohol, nano silicon dioxide and water according to the proportion, and stir evenly to obtain the auxiliary material mixture;

3) Slowly add the auxiliary material mixture obtained in step 2) to the main material mixture obtained in step 1), stir evenly and heat to 60°C, then add the proportioning amount of silicone weather-resistant adhesive, and slowly stir until cooled to room temperature , that is, metal waterproof coatings.

Example 2:

A metal waterproof coating, comprising the following components by weight: 55 parts of acrylic acid, 20 parts of aluminum chloride, 22 parts of styrene-acrylic emulsion, 8 parts of silicone weather-resistant adhesive, 10 parts of polyurethane, and 5 parts of vinyl caproate , 3 parts of isooctyl alcohol, 2 parts of nano silicon dioxide, 30 parts of water.

The preparation method of above-mentioned a kind of metallic waterproof paint, comprises the following steps:

1) Mix acrylic acid, aluminum chloride and styrene-acrylic emulsion according to the ratio, and stir evenly, and then stir evenly again after standing for 12 hours to obtain the main ingredient mixture;

2) Mix polyurethane, vinyl caproate, isooctyl alcohol, nano silicon dioxide and water according to the proportion, and stir evenly to obtain the auxiliary material mixture;

3) Slowly add the auxiliary material mixture obtained in step 2) to the main material mixture obtained in step 1), stir evenly and heat to 80°C, then add the proportioning amount of silicone weather-resistant adhesive, and slowly stir until cooled to room temperature , that is, metal waterproof coatings.

Example 3:

A metal waterproof coating, comprising the following components by weight: 40 parts of acrylic acid, 18 parts of aluminum chloride, 21 parts of styrene-acrylic emulsion, 6 parts of silicone weather-resistant adhesive, 8 parts of polyurethane, 4 parts of vinyl caproate , 2 parts of isooctyl alcohol, 1 part of nano silicon dioxide, 25 parts of water.

The preparation method of above-mentioned a kind of metallic waterproof paint, comprises the following steps:

1) Mix acrylic acid, aluminum chloride and styrene-acrylic emulsion according to the ratio, and stir evenly, and then stir evenly again after standing for 12 hours to obtain the main ingredient mixture;

2) Mix polyurethane, vinyl caproate, isooctyl alcohol, nano silicon dioxide and water according to the proportion, and stir evenly to obtain the auxiliary material mixture;

3) Slowly add the auxiliary material mixture obtained in step 2) to the main material mixture obtained in step 1), stir evenly and heat to 70°C, then add the proportioning amount of silicone weather-resistant adhesive, and slowly stir until cooled to room temperature , that is, metal waterproof coatings.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (3)

1. a metal waterproof paint, it is characterized in that, include following component by weight: vinylformic acid 35-55 part, aluminum chloride 15-20 part, benzene emulsion 20-22 part, the silicone glue of anti-marquis 5-8 part, urethane 6-10 part, vinyl caproate 3-5 part, isooctyl alcohol 2-3 part, nano silicon 1-2 part, water 20-30 part.

2. a kind of metal waterproof paint according to claim 1, it is characterized in that, include following component by weight: 40 parts, vinylformic acid, 18 parts, aluminum chloride, 21 parts of benzene emulsions, 6 parts, the silicone glue of anti-marquis, 8 parts of urethane, 4 parts of vinyl caproates, 2 parts of isooctyl alcohol, 1 part of nano silicon, 25 parts, water.

3. according to the preparation method of the arbitrary described a kind of metal waterproof paint of claim 1 or 2, it is characterized in that, comprise the following steps:

1) vinylformic acid, aluminum chloride and benzene emulsion are mixed by proportioning, and stir, place after 12 hours and again stir, obtain the major ingredient compound;

2) urethane, vinyl caproate, isooctyl alcohol, nano silicon and water are mixed by proportioning, and stir, obtain the auxiliary material compound;

3) by step 2) the auxiliary material compound that obtains slowly is added in the major ingredient compound that step 1) obtains, the post-heating to 60 ℃-80 ℃ of stirring, then add the silicone glue of anti-marquis of proportional quantity, and slowly be stirred to and be cooled to room temperature, obtain the metal waterproof paint.