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Fireproof paint for steel structures and preparation method of fireproof paint

A fireproof coating and steel structure technology, applied in the field of steel structure fireproof coating and steel structure fireproof coating preparation, can solve problems such as damage, burning of fireproof coating film-forming substances, inability to use steel structure fireproof coating, etc. The effect of reducing the amount of fire retardant coating and reducing the total cost of the project

Inactive Publication Date: 2017-01-04
安庆市建辉钢结构有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-based fireproof coatings have the problems of releasing a large amount of organic solvents during production and construction, causing harm to the surrounding environment and production and construction personnel, and releasing a large amount of toxic gases during combustion. It will be burned quickly, so it cannot be used as an important fireproof coating for steel structures

Method used

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  • Fireproof paint for steel structures and preparation method of fireproof paint
  • Fireproof paint for steel structures and preparation method of fireproof paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A steel structure fireproof coating and a preparation method thereof, the composition ratio of the steel structure fireproof coating includes (mass percentage): 10% of fluoropolymer emulsion, 5% of silicone modified polyacrylate emulsion, 8% of ammonium polyphosphate %, melamine 13% and pentaerythritol 4%, base resin 30%, other additives 30%.

[0019] A preparation method of steel structure fireproof coating, described preparation process is carried out according to the following steps,

[0020] (1) Ingredients: Prepare the ingredients according to the weight of the components of the above-mentioned steel structure fireproof coating;

[0021] (2) Primary mix preparation: Mix the fluorine-containing polymer emulsion and the silicone-modified polyacrylate emulsion in the batching tank evenly;

[0022] (3) Slurry preparation: put the primary mixture prepared in step (2) together with ammonium polyphosphate, melamine, pentaerythritol, and base resin and stir at high speed ...

Embodiment 2

[0025] The rest are the same as in Example 1, except that the composition ratio of the steel structure fireproof coating includes (mass percentage): 17% of fluoropolymer emulsion, 8% of silicone modified polyacrylate emulsion, 10% of ammonium polyphosphate %, 15% melamine and 5% pentaerythritol, 25% base resin, and 20% other additives; in the step (4), the stirring speed is 300r / min, and the grinder grinds 3 times.

Embodiment 3

[0027] The rest are the same as in Example 1, except that the composition ratio of the steel structure fireproof coating includes (mass percentage): 20% of fluoropolymer emulsion, 10% of silicone modified polyacrylate emulsion, 12% of ammonium polyphosphate %, 17% melamine and 6% pentaerythritol, 20% base resin, and 15% other additives; in the step (4), the stirring speed is 400r / min, and the grinder grinds 4 times.

[0028] After the above process steps, the steel structure samples are taken out to be tested:

[0029]

[0030] From the above data, it can be seen that the prepared steel structure fireproof coating has a fireproof time of more than 90 minutes. Adding a flame retardant and smoke suppressant (zinc chloride) and a flame retardant synergist (antimony trioxide), the fireproof coating has a very low smoke emission. Less, the fire performance after the test is not greatly weakened.

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Abstract

The invention discloses a fireproof paint for steel structures and a preparation method of the fireproof paint, and relates to the technical field of fireproof paint. The fireproof paint for steel structures is prepared from, by mass, 10%-20% of fluoropolymer emulsion, 5%-10% of organosilicone-modified polyacrylate emulsion, 8%-12% of ammonium polyphosphate, 13%-17% of melamine, 4%-6% of pentaerythritol, 20%-30% of matrix resin and 10%-30% of other auxiliaries. The invention further discloses a preparation method of the fireproof paint for steel structures. The preparation method includes the four process steps of material preparation, premix preparation, slurry preparation and paint preparation. The fireproof paint obtained through the method has the advantage of being capable of withstanding rapid temperature rising of fire, and the fire resistance limit can reach 90 min or longer; besides, the fireproof paint is simple in preparation process, low in cost and wide in application range.

Description

technical field [0001] The invention relates to the technical field of fireproof coatings, in particular to a fireproof coating for steel structures and a preparation method for fireproof coatings for steel structures. Background technique [0002] Steel is a non-combustible building material, which has the characteristics of earthquake resistance, bending resistance and so on. In practical applications, steel can not only increase the load capacity of buildings relatively, but also meet the needs of architectural design aesthetics; it also avoids the defects of concrete and other building materials that cannot be bent and stretched. Therefore, steel is favored by the construction industry. Single-story, multi-story, skyscrapers, factories, warehouses, waiting rooms, waiting halls, etc. are all commonly used in steel. However, as a building material, steel has some unavoidable defects in fire prevention. Its mechanical properties, such as yield point, tensile strength and m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D201/00C09D201/04C09D133/04C09D5/18C09D7/12
CPCC09D201/00C08L2201/02C08L2205/02C08L2205/03C09D5/18C09D201/04C08L101/04C08L33/04C08K13/02C08K2003/323C08K5/3492C08K5/053C08L101/00
Inventor 李开辉
Owner 安庆市建辉钢结构有限责任公司
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