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Fireproof coating used for steel structure buildings, preparation method thereof and coating process

A technology for fire-resistant coatings and steel structures, applied in fire-resistant coatings, devices for coating liquids on surfaces, coatings, etc., can solve the problems of poor fire resistance, loss of mechanical strength, and easy heat conduction of steel structures, and achieve good fire resistance. protective effect

Active Publication Date: 2014-05-14
LIYANG TECH DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fire resistance of the steel structure is very poor, and it is very easy to conduct heat. When its own temperature exceeds 540 degrees Celsius, its mechanical strength is almost completely lost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Acrylic resin is selected as the main film-former, and pure acrylic emulsion is used as the secondary film-former, taking advantage of the high foaming ratio of acrylic resin and the good strength of the carbonized layer of pure acrylic emulsion.

[0012] Ammonium polyphosphate, dipentaerythritol, melamine and expanded graphite are selected as the carbon forming system.

[0013] The formula and preparation method of fireproof coating of the present invention are specifically as follows:

[0014] In terms of weight percentage: 35% film-forming material (base material), 48% carbon-forming system, 1% nano-magnesia powder (40-45nm), 15% deionized water, and 1% additive.

[0015] Preferably, expressed by weight percentage: 24% of acrylic resin, 11% of pure acrylic emulsion, 24% of ammonium polyphosphate, 12% of dipentaerythritol, 6% of melamine, 6% of expanded graphite, 1% of nano-magnesium oxide powder, deionized 15% water, 1% additives.

[0016] Auxiliaries include defoa...

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PUM

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Abstract

The invention provides a fireproof coating used for steel structure buildings. The fireproof coating selects acrylic resin as a main film forming matter and pure acrylic emulsion as a secondary film forming matter. A formula of the fireproof coating comprises the following components by weight percent: 24% of acrylic resin, 11% of pure acrylic emulsion, 24% of ammonium polyphosphate, 12% of dipentaerythritol, 6% of melamine, 6% of expanded graphite, 1% of nanometer magnesia powder, 15% of deionized water and 1% of aids. The ultrathin steel structure fireproof coating has the advantages of high performance, strong adhesion, good weather resistance and the like. The invention also relates to a preparation method of the fireproof coating used for steel structure buildings and a process for coating steel structures.

Description

technical field [0001] The invention relates to a fireproof coating for steel structure buildings, and also relates to a manufacturing method of the fireproof coating for steel structure buildings and a process for coating steel structures. Background technique [0002] Steel structures have the advantages of light weight, high strength, convenient construction, good ductility and earthquake resistance, and are increasingly widely used in the construction industry, especially in super high-rise and long-span buildings. However, the fire resistance of the steel structure is very poor, and it is very easy to conduct heat. When its own temperature exceeds 540 degrees Celsius, its mechanical strength is almost completely lost. Many fire cases of steel structure buildings at home and abroad have proved that within 20 minutes after a fire breaks out, steel structure buildings will be burned and collapsed. Therefore, the fire protection problem of steel structure buildings has att...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D133/04C09D7/12C09D5/18B05D7/14
Inventor 梅欣
Owner LIYANG TECH DEV CENT