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Aluminum powder coating for water-based paint and treatment process thereof

A water-based paint and treatment process technology, which is applied in the direction of inorganic pigment treatment, dyed organic silicon compound treatment, dyed polymer organic compound treatment, etc., can solve the problems of increasing cost, high price, unfavorable product promotion, etc.

Pending Publication Date: 2020-10-09
REALTEC CHEM RTC SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The use environment of oily aluminum powder is solvent-based paint. When it is used in water-based system, the coating film will produce shrinkage cavities and the arrangement of aluminum powder is poor. Oily aluminum powder will react with acid, alkali and water in water-based system and release gas, which has great safety Hidden danger
Water-based aluminum powder is specially developed for water-based systems. The surface of the aluminum powder is covered with a layer of silica structure, but the price is high. The price of water-based aluminum powder is more than twice the price of oil-based aluminum powder, which greatly increases the cost and is not conducive to product promotion. The surface is covered with silicon dioxide, light will be refracted by the silicon dioxide layer, and the metallic effect of the coating film will be deteriorated

Method used

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  • Aluminum powder coating for water-based paint and treatment process thereof

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Experimental program
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Effect test

Embodiment 1

[0041] 1. 40 parts of deoiling agent, 40 parts of 1# oily aluminum powder, add to the mixing tank at 500r / min*10min, add to the centrifuge to separate the aluminum powder and deoiling agent, after centrifugation, the aluminum powder is ready for use, and the deoiling agent is repeated use;

[0042] 2. Add 20 parts of hybrid siloxane resin, 6 parts of aluminum powder coating resin, and 40 parts of diluent into the mixing tank at 500r / min*10min, and filter through a 300-mesh filter to obtain the coating solution;

[0043] 3. Mix the coating solution and the centrifuged aluminum powder according to 1:1;

[0044] 4. Put the aluminum powder slurry into the autoclave, heat up to 50°C, stir at 500r / min for 30 minutes, and vacuum for 20 minutes to prepare the aluminum powder slurry for water-based coatings;

[0045] 5. Add the prepared 1# aluminum powder slurry to the water-based paint, spray the board, put the 1# aluminum powder slurry and the prepared aluminum powder paint into a 5...

Embodiment 2

[0047] 1. 40 parts of deoiling agent, 40 parts of 2# oily aluminum powder, add to the mixing tank at 500r / min*10min, add to the centrifuge to separate the aluminum powder and deoiling agent, after centrifugation, the aluminum powder is ready for use, and the deoiling agent is repeated use;

[0048] 2. Add 20 parts of hybrid siloxane resin, 6 parts of aluminum powder coating resin, and 40 parts of diluent into the mixing tank at 500r / min*10min, and filter through a 300-mesh filter to obtain the coating solution;

[0049] 3. Mix the coating solution and the centrifuged aluminum powder according to 1:1;

[0050] 4. Put the aluminum powder slurry into the autoclave, heat up to 50°C, stir at 500r / min for 30 minutes, and vacuum for 20 minutes to prepare the aluminum powder slurry for water-based coatings;

[0051] 5. Put the prepared 2# aluminum powder slurry into the water-based paint, spray the board, put the 1# aluminum powder slurry and the prepared aluminum powder paint into a...

Embodiment 3

[0053] 1. 40 parts of deoiling agent, 40 parts of 2# oily aluminum powder, add to the mixing tank at 500r / min*10min, add to the centrifuge to separate the aluminum powder and deoiling agent, after centrifugation, the aluminum powder is ready for use, and the deoiling agent is repeated use;

[0054] 2. Add 20 parts of hybrid siloxane resin, 6 parts of aluminum powder coating resin, and 40 parts of diluent into the mixing tank at 500r / min*10min, and filter through a 300-mesh filter to obtain the coating solution;

[0055] 3. Mix the coating solution and the centrifuged aluminum powder according to 1:1;

[0056]4. Put the aluminum powder slurry into the autoclave, heat up to 50°C, stir at 500r / min for 30 minutes, and vacuum for 20 minutes to prepare the aluminum powder slurry for water-based coatings;

[0057] 5. Put the prepared 3# aluminum powder slurry into the water-based paint, spray the board, put the 1# aluminum powder slurry and the prepared aluminum powder paint into a ...

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Abstract

The invention discloses an aluminum powder coating for water-based paint and a treatment process. A water-based structure is prepared from the following raw materials by weight: 40-50 parts of a deoiling agent, 20-30 parts of hybrid siloxane resin, 4-8 parts of aluminum powder coated resin, 30-50 parts of a diluent and 30-50 parts of oily aluminum powder. The aluminum powder can be well coated, and the reaction of acid, alkali and water is blocked.

Description

technical field [0001] The invention relates to the technical field of water-based paints, in particular to an aluminum powder coating for water-based paints and a treatment process thereof. Background technique [0002] Aluminum powder for pigments refers to the aluminum powder whose particles are in the shape of scales, the surface is coated with a treatment agent, and is suitable for use as a pigment. Aluminum powder paste is a mixture of pigment aluminum powder and solvent. Its use and characteristics are roughly the same as aluminum powder. Because it is easy to use, its output and consumption are larger. Compared with other pigments, aluminum powder for pigments has more characteristics, which are manifested in the following aspects: [0003] 1. Characteristics of scaly covering [0004] The aluminum powder particles are in the form of scales, and the ratio of its sheet diameter to thickness is about (40:1)-(100:1). After the aluminum powder is dispersed into the car...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/40C09C3/10C09C3/12C09D7/62
CPCC09C1/407C09C3/006C09C3/10C09C3/12C09D7/62
Inventor 张会励王飞王祥军张齐桓
Owner REALTEC CHEM RTC SHANGHAI
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