1. An ultra-thin coating powder coating with wide application range is characterized in that: comprises the following components in parts by weight: 45-60 parts of epoxy resin, 4-6 parts of curing agent, 0.5-1.5 parts of benzoin, 15-20 parts of pigment, 0.1-0.3 part of nano aluminum oxide, 0.5-1.5 parts of dioctyl sodium sulfosuccinate and 0.5-1.5 parts of organic silicon surfactant.

2. The ultra-thin coating powder coating with wide application range of claim 1, which is characterized in that: the organic silicon surfactant is phosphate type organic silicon surfactant.

3. The ultra-thin coating powder coating with wide application range of claim 1, which is characterized in that: the polishing agent also comprises 1-2 parts of polishing agent.

4. The ultra-thin coating powder coating with wide application range of claim 3, is characterized in that: the adhesive also comprises a curing accelerator, and the content of the curing accelerator is 0.5-1.5 parts.

5. The ultra-thin coating powder coating with wide application range of claim 1, which is characterized in that: the curing agent is isocyanuric acid glycidyl ester curing agent.

6. The preparation method of the ultrathin coating powder coating with wide application range according to claim 1 is characterized by comprising the following steps: the method comprises the following steps:

s1, weighing the components according to the proportion, mixing, melting and extruding;

s2, cooling the mixed mixture and coarsely crushing the mixture;

and S3, finely crushing the coarsely crushed semi-finished product and then sieving to obtain a finished product.

7. The preparation method of the ultrathin coating powder coating with wide application range according to claim 6 is characterized by comprising the following steps: the mixing temperature is 150 ℃ and 200 ℃, and the mixing time is 0.5-1.5 hours.

8. The preparation method of the ultrathin coating powder coating with wide application range according to claim 6 is characterized by comprising the following steps: the cooling time is 1-3 hours, and the cooling temperature is 15-25 ℃.

Background

The requirement of the ultrathin powder on good covering power, particularly white, is that the powder coating has good leveling property because of the thinness of the coating, and the requirement of the thin coating on flat, smooth and full coating requires the improvement of resin quantity and the good wetting property of the formula, so that the resin, the pigment, the filler, the auxiliary agent and the like are strictly screened.

The existing ultra-thin coating powder coating is very easy to be agglomerated during production and use, and the existing ultra-thin coating powder coating has general wettability and has certain influence on the smoothness and smoothness of a coating film.

Disclosure of Invention

The invention aims to solve the defects of common wetting property, certain influence on the smoothness and flatness of a coating film and the like in the prior art, and provides an ultrathin coating powder coating with wide application range and a preparation method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

an ultrathin coating powder coating with a wide application range is designed, and comprises the following components in parts by weight: 45-60 parts of epoxy resin, 4-6 parts of curing agent, 0.5-1.5 parts of benzoin, 15-20 parts of pigment, 0.1-0.3 part of nano aluminum oxide, 0.5-1.5 parts of dioctyl sodium sulfosuccinate and 0.5-1.5 parts of organic silicon surfactant.

Preferably, the silicone surfactant is a phosphate type silicone surfactant.

Preferably, the polishing agent also comprises a polishing agent, and the content of the polishing agent is 1-2 parts.

Preferably, the adhesive further comprises a curing accelerator, and the content of the fixing accelerator is 0.5-1.5 parts.

Preferably, the curing agent is a glycidyl isocyanurate curing agent.

A preparation method of an ultrathin coating powder coating with wide application range comprises the following steps:

s1, weighing the components according to the proportion, mixing, melting and extruding;

s2, cooling the mixed mixture and coarsely crushing the mixture;

and S3, finely crushing the coarsely crushed semi-finished product and then sieving to obtain a finished product.

Preferably, the mixing temperature is 150 ℃ to 200 ℃ and the time is 0.5 to 1.5 hours.

Preferably, the cooling time is 1-3 hours, and the cooling temperature is 15-25 ℃.

The invention provides an ultrathin coating powder coating with wide application range and a preparation method thereof, and the ultrathin coating powder coating has the beneficial effects that: the nano aluminum oxide is added into the powder coating, so that the bulkiness of the powder coating can be improved, the anti-caking effect is good, the powder coating used in high-temperature and high-humidity environments has good storage performance, the sodium diisooctyl succinate sulfonate has excellent permeability and lower surface tension, is an excellent penetrating agent and a dispersing agent, and is matched with the added organic silicon surfactant to enhance the wettability of the coating, so that the flatness, smoothness and fullness of a coating film can be greatly improved.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

An ultrathin coating powder coating with wide application range comprises the following components in parts by weight: 45 parts of epoxy resin, 4 parts of curing agent, 0.5 part of benzoin, 15 parts of pigment, 0.1 part of nano aluminum oxide, 0.5 part of dioctyl sodium sulfosuccinate and 0.5 part of organic silicon surfactant.

The organic silicon surfactant is phosphate type organic silicon surfactant.

Also comprises a brightener, wherein the content of the brightener is 1 part.

Also comprises a curing accelerator, and the content of the fixing accelerator is 0.5 part.

The curing agent is isocyanuric acid glycidyl ester curing agent.

A preparation method of an ultrathin coating powder coating with wide application range comprises the following steps:

s1, weighing the components according to the proportion, mixing, melting and extruding;

s2, cooling the mixed mixture and coarsely crushing the mixture;

and S3, finely crushing the coarsely crushed semi-finished product and then sieving to obtain a finished product.

The mixing temperature was 150 ℃ and the time was 0.5 hour.

The cooling time was 1 hour and the cooling temperature was 15 ℃.

Example two

An ultrathin coating powder coating with wide application range comprises the following components in parts by weight: 52.5 parts of epoxy resin, 5 parts of curing agent, 1 part of benzoin, 17.5 parts of pigment, 0.2 part of nano aluminum oxide, 1 part of dioctyl sodium sulfosuccinate and 1 part of organic silicon surfactant.

The organic silicon surfactant is phosphate type organic silicon surfactant.

Also comprises a brightener, wherein the content of the brightener is 1.5 parts.

Also comprises a curing accelerator, and the content of the fixing accelerator is 1 part.

The curing agent is isocyanuric acid glycidyl ester curing agent.

A preparation method of an ultrathin coating powder coating with wide application range comprises the following steps:

s1, weighing the components according to the proportion, mixing, melting and extruding;

s2, cooling the mixed mixture and coarsely crushing the mixture;

and S3, finely crushing the coarsely crushed semi-finished product and then sieving to obtain a finished product.

The mixing temperature was 175 ℃ and the time was 1 hour.

The cooling time was 2 hours and the cooling temperature was 20 ℃.

EXAMPLE III

An ultrathin coating powder coating with wide application range comprises the following components in parts by weight: 60 parts of epoxy resin, 6 parts of curing agent, 1.5 parts of benzoin, 20 parts of pigment, 0.3 part of nano aluminum oxide, 1.5 parts of dioctyl sodium sulfosuccinate and 1.5 parts of organic silicon surfactant.

The organic silicon surfactant is phosphate type organic silicon surfactant.

Also comprises a brightener, wherein the content of the brightener is 2 parts.

Also comprises a curing accelerator, and the content of the fixing accelerator is 1.5 parts.

The curing agent is isocyanuric acid glycidyl ester curing agent.

A preparation method of an ultrathin coating powder coating with wide application range comprises the following steps:

s1, weighing the components according to the proportion, mixing, melting and extruding;

s2, cooling the mixed mixture and coarsely crushing the mixture;

and S3, finely crushing the coarsely crushed semi-finished product and then sieving to obtain a finished product.

The mixing temperature was 200 ℃ and the time was 1.5 hours.

The cooling time was 3 hours and the cooling temperature was 25 ℃.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.