A water-based self-coating wet film post-treatment liquid

Abstract

The invention relates to a post-treatment liquid for water-based self-coating paint coatings and a use method thereof, which are used to treat the wet film of the self-coating paint and improve the anti-corrosion performance of the coating. The technical solution of the present invention is: an aqueous post-treatment liquid, comprising active components and water, the mass ratio of the two being (1-40):100. The active component is ammonium zirconium carbonate or zirconium n-butoxide and other zirconium salts, or iron salts such as ferric trifluoride or ferrous sulfate, or a mixture of zirconium salts and iron salts. A better example is ammonium zirconium carbonate The mass ratio of ferric trifluoride and ferric trifluoride is 10: (1-4) mixture. Method of use: First, mix the post-treatment liquid according to the above ratio, and then use spraying or dipping to evenly coat the post-treatment liquid on the surface of the wet film of self-coating paint. After it fully reacts with the coating film, proceed to the subsequent After the coating is cured, a self-coating paint coating with good comprehensive performance can be obtained.

Description

technical field

[0001] The invention belongs to the field of water-based paint, and relates to a water-based self-coating wet film post-treatment liquid and a use method thereof. Background technique

[0002] Self-coating paint refers to a kind of water-based primer coating with acrylic emulsion, epoxy emulsion and other emulsions as film-forming materials. It has outstanding advantages such as automatic deposition, high environmental protection, weather resistance, corrosion resistance, gloss retention, color retention and convenient construction. Advantages, widely used in the automotive industry. However, when the workpiece is subjected to self-coating treatment, there will inevitably be insufficient demulsification of the self-coating paint emulsion, forming floating paint on the surface of the coating, which is not conducive to subsequent construction and will reduce the anti-corrosion performance of the coating. Contents of the invention

[0003] The object of the p...

Examples

Embodiment 1

[0010] The formula of the water-based post-treatment liquid is (the quantity is the mass):

[0011] Ammonium zirconium carbonate: 20

[0012] Ferrous sulfate: 5

[0013] Water: 500

[0014] The specific operation is: according to the above formula, mix the raw materials evenly to obtain the aqueous post-treatment liquid;

[0015] The method of using the water-based post-treatment liquid is as follows: use the dip coating method to evenly coat the water-based post-treatment liquid on the surface of the wet film of the self-coating paint, and then perform sufficient curing treatment at the required temperature to obtain a product with good comprehensive performance. Self-coating paint.

Embodiment 2

[0017] The formula of the water-based post-treatment liquid is (the quantity is the mass):

[0018] Zirconium n-butoxide: 20

[0019] Ferric trifluoride: 5

[0020] Water: 500

[0021] The specific operation is: according to the above formula, mix the raw materials evenly to obtain the aqueous post-treatment liquid;

[0022] The method of using the water-based post-treatment liquid is: use the spraying method to evenly coat the water-based post-treatment liquid on the surface of the wet film of the self-coating paint, and then perform sufficient curing treatment at the required temperature to obtain a self-coating paint with good comprehensive performance. Swimming paint coating.

Embodiment 3

[0024] The formula of the water-based post-treatment liquid is (the quantity is the mass):

[0025] Zirconium nitrate: 30

[0026] Water: 500

[0027] The specific operation is: according to the above formula, mix the raw materials evenly to obtain the aqueous post-treatment liquid;

[0028] The method of using the water-based post-treatment liquid is as follows: use the dip coating method to evenly coat the water-based post-treatment liquid on the surface of the wet film of the self-coating paint, and then perform sufficient curing treatment at the required temperature to obtain a product with good comprehensive performance. Self-coating paint.

technical field

[0001] The invention belongs to the field of water-based paint, and relates to a water-based self-coating wet film post-treatment liquid and a use method thereof. Background technique

[0002] Self-coating paint refers to a kind of water-based primer coating with acrylic emulsion, epoxy emulsion and other emulsions as film-forming materials. It has outstanding advantages such as automatic deposition, high environmental protection, weather resistance, corrosion resistance, gloss retention, color retention and convenient construction. Advantages, widely used in the automotive industry. However, when the workpiece is subjected to self-coating treatment, there will inevitably be insufficient demulsification of the self-coating paint emulsion, forming floating paint on the surface of the coating, which is not conducive to subsequent construction and will reduce the anti-corrosion performance of the coating. Contents of the invention

[0003] The object of the p...

Examples

Embodiment 1

[0010] The formula of the water-based post-treatment liquid is (the quantity is the mass):

[0011] Ammonium zirconium carbonate: 20

[0012] Ferrous sulfate: 5

[0013] Water: 500

[0014] The specific operation is: according to the above formula, mix the raw materials evenly to obtain the aqueous post-treatment liquid;

[0015] The method of using the water-based post-treatment liquid is as follows: use the dip coating method to evenly coat the water-based post-treatment liquid on the surface of the wet film of the self-coating paint, and then perform sufficient curing treatment at the required temperature to obtain a product with good comprehensive performance. Self-coating paint.

Embodiment 2

[0017] The formula of the water-based post-treatment liquid is (the quantity is the mass):

[0018] Zirconium n-butoxide: 20

[0019] Ferric trifluoride: 5

[0020] Water: 500

[0021] The specific operation is: according to the above formula, mix the raw materials evenly to obtain the aqueous post-treatment liquid;

[0022] The method of using the water-based post-treatment liquid is: use the spraying method to evenly coat the water-based post-treatment liquid on the surface of the wet film of the self-coating paint, and then perform sufficient curing treatment at the required temperature to obtain a self-coating paint with good comprehensive performance. Swimming paint coating.

Embodiment 3

[0024] The formula of the water-based post-treatment liquid is (the quantity is the mass):

[0025] Zirconium nitrate: 30

[0026] Water: 500

[0027] The specific operation is: according to the above formula, mix the raw materials evenly to obtain the aqueous post-treatment liquid;

[0028] The method of using the water-based post-treatment liquid is as follows: use the dip coating method to evenly coat the water-based post-treatment liquid on the surface of the wet film of the self-coating paint, and then perform sufficient curing treatment at the required temperature to obtain a product with good comprehensive performance. Self-coating paint.