Shell powder interior wall paint and preparation method and device thereof

A preparation device and a technology for shell powder, applied in the field of coatings, can solve the problems of reduced formaldehyde or moisture fixation capacity, reduced adsorption capacity, and high preparation cost, and achieve the effects of ensuring the adsorption and degradation of formaldehyde, the improvement of adsorption capacity, and the improvement of curing strength.

Active Publication Date: 2020-10-09
焦作市流金伟业科技有限公司
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AI Technical Summary

Problems solved by technology

The problem is that high-temperature calcination greatly damages the porous structure of shell powder itself, reduces its adsorption capacity, and consumes a lot of energy and high production costs; the amount of vegetable glue added will block the microporous structure of shell powder and reduce its adsorption capacity. Adsorption capacity: Shell powder is too fine, although the specific surface area increases and the adsorption capacity increases, but the ability to fix formaldehyde or moisture will decrease
In addition, the function of shell powder to degrade formaldehyde is generally realized by adding titanium dioxide with catalytic effect, but the catalytic effect of titanium dioxide needs to be under the condition of ultraviolet rays, and indoor conditions do not meet this condition. Therefore, the shell powder wall paint in the prior art The ability to degrade formaldehyde is questionable

Method used

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  • Shell powder interior wall paint and preparation method and device thereof
  • Shell powder interior wall paint and preparation method and device thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A shell powder interior wall paint, comprising the following components by weight: 200 parts of coarse shell powder, 100 parts of fine shell powder, 1.5 parts of dispersant, 2 parts of emulsifier, 1 part of defoamer, 1 part of ethanol, and 2 parts of sodium carbonate , 8 parts of vegetable gum; the particle size of the coarse shell powder is 20-50 mesh, the content of CaO in the coarse shell powder is not higher than 10%, the particle surface of the coarse shell powder is covered with a layer of aluminum oxide cladding layer, aluminum oxide The cladding layer is embedded with chopped fibers, and the aluminum oxide cladding layer is mixed with a copper-manganese catalyst; the particle size of the fine shell powder is 500-800 mesh, and the CaO content in the fine shell powder is not less than 50%. Wherein dispersant, emulsifier, defoamer can adopt the conventional selection in the field of wall paint, have no obvious influence on technical effect of the present invention. ...

Embodiment 2

[0023] A preparation method of shell powder interior wall paint, comprising the following steps:

[0024] 1) Powder the raw shells, and sieve to obtain a coarse powder with a particle size of 20-50 mesh and a fine powder with a particle size of 500-800 mesh;

[0025] 2) Alumina sol is prepared, and copper-manganese catalyst (CuO-MnO) is mixed into the alumina sol; wherein the loading of copper-manganese catalyst is 30wt%, n(Cu):n(Mn)=1:4.

[0026] 3) The coarse powder obtained in step 1) is first soaked with hydrogen peroxide to remove the fishy smell, then mixed with the alumina sol obtained in step 2), and mixed with chopped fibers. dried, crushed and sieved again, and calcined at low temperature to obtain coarse shell powder;

[0027] 4) The fine powder is calcined above 800°C to obtain fine shell powder;

[0028] 5) Mix the coarse shell powder of step 3) with the fine shell powder of step 4), and add powdery dispersant, emulsifier, defoamer, ethanol, sodium carbonate, ve...

Embodiment 3

[0030] Such as figure 1 and 2 , a preparation device for shell powder interior wall paint, comprising a shell pulverizer 1, a dipping tank 2, a coarse powder mixing tank 3, a drying cylinder 4, a calcining kiln 5, a primary cooling kiln 6, a secondary cooling kiln 7 and a finished product mixing tank 8. The shell crusher is provided with a coarse powder outlet and a fine powder outlet, the coarse powder outlet is connected to the dipping tank, the dipping tank is connected to the coarse powder mixing tank, the coarse powder mixing tank is connected to the drying cylinder, and the fine powder outlet is connected to the calcining kiln , the calcining kiln and drying cylinder are connected to the primary cooling kiln, the primary cooling kiln is connected to the secondary cooling kiln, and the secondary cooling kiln is connected to the finished product mixing tank. Among them, the calcining kiln, primary cooling kiln and secondary cooling kiln all adopt rotary kiln structure, an...

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Abstract

The invention relates to shell powder interior wall paint and a preparation method and device thereof. The shell powder interior wall paint is prepared from the following components: coarse shell powder, fine shell powder, a dispersing agent, an emulsifying agent, a defoaming agent, ethanol, sodium carbonate and vegetable gum, wherein the particle size of the coarse shell powder is 20-50 meshes, the content of CaO in the coarse shell powder is not higher than 10%, the particle surface of the coarse shell powder is covered with an aluminum oxide coating layer, chopped fibers are embedded in thealuminum oxide coating layer, and a copper-manganese catalyst is doped in the aluminum oxide coating layer; the particle size of the fine shell powder is 500-800 meshes, and the content of CaO in thefine shell powder is not lower than 50%. In the composition of the scheme, the coarse shell powder is used for replacing most of the fine shell powder, the use amount of vegetable gum is greatly reduced, the adsorption capacity is greatly improved, and the capacity of adsorbing and degrading formaldehyde and adjusting the humidity of the shell powder interior wall paint is effectively guaranteed.

Description

technical field [0001] The invention relates to a shell powder interior wall paint and a preparation method and device thereof, belonging to the technical field of paint. Background technique [0002] Shell powder interior wall paint, as a new type of paint, is considered to have special effects such as adsorption and degradation of formaldehyde, humidity adjustment, and sterilization, and has a relatively large market share in the high-end paint market. Shell powder has the function of absorbing formaldehyde and regulating humidity mainly because it has a porous microstructure, and its principle is consistent with the properties of molecular sieves. When shell powder is used as a coating, it needs to be calcined at a high temperature of about 800°C. The first function is to remove organic matter and eliminate the fishy smell of the shell powder itself; the second is to decompose a part of calcium carbonate into calcium oxide. After the paint is applied to the wall, it can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/61C09D7/80B02C23/30B02C13/30B02C13/28B02C13/04B02C4/42B02C4/30B02C4/10
CPCB02C4/10B02C4/30B02C4/42B02C13/04B02C13/28B02C13/30B02C23/30C09D1/00C09D7/61C09D7/80
Inventor 王永兴王广兴
Owner 焦作市流金伟业科技有限公司
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