Inorganic fire-prevention rust-prevention coating for steel structures and preparation method thereof

A technology for anti-rust coatings and steel structures, applied in the direction of fire-resistant coatings, anti-corrosion coatings, alkali metal silicate coatings, etc., can solve the problems of strong irritation of organic anti-rust paints, affecting the health of workers, and failing to achieve fire protection functions, etc. , to achieve the effect of hard texture, tight internal structure, and fireproof performance

Inactive Publication Date: 2013-07-17
王建文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, fire-resistant coatings for steel structures are generally made of organic flame-retardant resins and fire-retardant fillers. During production and construction, toxic gases will be generated, which will affect the health of workers. Under normal conditions, this type of organic fire-resistant coatings will also have some residual gas discharged.
Especially when a fire breaks out, toxic gas will be produced, and the organic resin has a combustion-supporting effect, which cannot meet the actual fire prevention function required
[0003] In order to solve the above problem of toxic gas, a series of water-based fireproof coatings have been developed in the prior art, but the fireproof performance is poor
And the fireproof coating needs to be sprayed with a layer of organic antirust paint before use. Although the antirust paint is antirust, it is not fireproof. The antirust paint is more combustible than the organic fireproof paint. requirements
And the organic anti-rust paint has strong irritation and is not environmentally friendly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Inorganic fireproof and antirust paint for steel structure is composed of powder and colloid, wherein the colloid is potassium silicate, and the weight ratio of powder to colloid is 1:0.8; the powder is made up of the following ingredients by weight percentage (the total weight is 10Kg):

[0030] components

Magnesite powder

Talc powder

Silica powder

Silica-alumina powder

Weight (kg)

0.5

4

3

2.5

Weight percentage (%)

5

40

30

25

[0031] Among them, the particle size of magnesium stone powder is 2500 mesh, MgO content ≥ 98%; the particle size of talc powder is 2000 mesh, SiO 2 Content ≥ 59%; the particle size of silica powder is 3000 mesh, SiO 2 Content ≥ 98%; the particle size of silicon aluminum powder is 600 mesh, SiO 2 Content ≥ 50%. The particle size of each powder component is small, and it is easier to disperse, so that it forms a dense structure in the coating.

[0032] According to ...

Embodiment 2

[0045] Inorganic fireproof and antirust paint for steel structure is composed of powder and colloid, wherein the colloid is potassium silicate, and the weight ratio of powder to colloid is 1:1; the powder is made up of the following ingredients in weight percentage (total weight is 10Kg):

[0046] components

Magnesite powder

Talc powder

Silica powder

Silica-alumina powder

Weight (kg)

40

32

4

24

Weight percentage (%)

40

32

4

24

[0047] Among them, the particle size of magnesium stone powder is 3000 mesh, MgO content ≥ 99%; the particle size of talc powder is 6000 mesh, SiO 2 Content ≥ 60%; the particle size of silica powder is 4000 mesh, SiO 2 Content ≥ 98%; the particle size of silicon aluminum powder is 650 mesh, SiO 2 Content ≥ 50%. The particle size of each powder component is small, and it is easier to disperse, so that it forms a dense structure in the coating.

[0048] According to the wei...

Embodiment 3

[0061] Inorganic fireproof and antirust paint for steel structure is composed of powder and colloid, wherein the colloid is potassium silicate, and the weight ratio of powder to colloid is 1:0.9; 10Kg):

[0062] components

Magnesite powder

Talc powder

Silica powder

Silica-alumina powder

Weight (kg)

4

3.2

0.4

2.4

Weight percentage (%)

40

32

4

24

[0063] Among them, the particle size of magnesium stone powder is 5000 mesh, MgO content ≥ 99%; the particle size of talc powder is 3000 mesh, SiO 2 Content ≥ 60%; the particle size of silica powder is 6000 mesh, SiO 2 Content ≥ 98%; the particle size of silicon aluminum powder is 1300 mesh, SiO 2 Content ≥ 50%. The particle size of each powder component is small, and it is easier to disperse, so that it forms a dense structure in the coating.

[0064] According to the weight of the powder, weigh 9Kg of potassium silicate colloid, the modulus range of po...

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Abstract

The invention discloses an inorganic fire-prevention rust-prevention coating for steel structures and a preparation method thereof. The coating is a mixture of powder and colloid. The weight ratio of power to colloid is 1:(0.8-1.2). The colloid is potassium metasilicate. The powder is prepared from the following components in percentage by weight: 5-40% of magnesium mountain powder, 5-40% of talcum powder, 4-35% of silica powder and 4-25% of silicon aluminium powder. The granularity of the magnesium mountain powder is 2500-6500 meshes, the granularity of the talcum powder is 2000-6000 meshes, the granularity of the silica powder is 3000-8000 meshes, and the granularity of the silicon aluminium powder is 600-2000 meshes. According to the preparation method of the inorganic fire-prevention rust-prevention coating for steel structures, provided by the invention, the powder and the colloid are mixed uniformly. The inorganic fire-prevention rust-prevention coating for steel structures has good high-temperature-resistant performance and good rust-prevention effect.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an inorganic fireproof and antirust coating for steel structures and a preparation method thereof. Background technique [0002] At present, fire-resistant coatings for steel structures are generally made of organic flame-retardant resins and fire-retardant fillers. During production and construction, toxic gases will be generated, which will affect the health of workers. Under normal conditions, this type of organic fire-resistant coatings will also have some residual gas discharged. . Especially when a fire occurs, toxic gas will be produced, and the organic resin has a combustion-supporting effect, which cannot reach the fireproof function of the actual requirement. [0003] In order to solve the above problem of toxic gas, a series of water-based fireproof coatings have been developed in the prior art, but the fireproof performance is relatively poor. And the fireproof coa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/02C09D5/08C09D5/18
Inventor 王建文王丹丹
Owner 王建文
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