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A process for coating steel structures with fireproof coatings

A technology for fire-resistant coatings and steel structures, applied in fire-resistant coatings, devices for coating liquid on the surface, epoxy resin 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 performance , good protective effect

Active Publication Date: 2015-11-25
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] Chlorinated rubber-modified epoxy resin is selected as the main film-former, and styrene-acrylic emulsion is used as the secondary film-former, taking advantage of the advantages of high foaming ratio of chlorinated rubber-modified epoxy resin and good carbonization layer strength of styrene-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] Expressed by weight percentage: 35% of film-forming material (base material), 48% of carbon-forming system, 1% of nano-magnesia powder (40-45 nanometers), 15% of deionized water, and 1% of auxiliary agent.

[0015] Preferably, expressed by weight percentage: chlorinated rubber modified epoxy resin 25%, styrene-acrylic emulsion 10%, ammonium polyphosphate 27%, dipentaerythritol 9%, melamine 6%, expanded graphite 6%, ...

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PUM

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Abstract

The invention relates to a fireproof paint for steel structure buildings. A chlorinated rubber modified epoxy resin is used as a primary film forming material, and a styrene-acrylic emulsion is used as a secondary film forming material. The fireproof paint is prepared from the following components in percentage by weight: 25% of chlorinated rubber modified epoxy resin, 10% of styrene-acrylic emulsion, 27% of ammonium polyphosphate, 9% of bis-pentaerythritol, 6% of melamine, 6% of expanded graphite, 1% of nano magnesia powder, 15% of deionized water and 1% of assistant. The ultrathin fireproof paint for steel structures has the advantages of high performance, high adhesive force, favorable weather resistance and the like. The invention also relates to a manufacturing method of the fireproof paint for steel structure buildings and a technique for coating a steel structure.

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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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D125/14C09D5/18B05D7/16B05D3/12
Inventor 梅欣
Owner LIYANG TECH DEV CENT