Indoor expansive type fireproof steel structure coating and preparation method thereof

An intumescent technology for steel structure coatings, applied in the direction of fire-proof coatings, anti-corrosion coatings, anti-fouling/underwater coatings, etc., to achieve the effects of enhanced corrosion resistance, slow degradation speed, and improved degradation resistance

Inactive Publication Date: 2017-02-22
成都创慧科达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an indoor intumescent fire-resistant steel structure coating with excellent thermal insulation performance and aging resistance to solve the shortcomings of existing indoor fire-resistant coatings in view of the above-mentioned problems

Method used

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  • Indoor expansive type fireproof steel structure coating and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0026] An indoor intumescent fireproof steel structure coating, the fireproof coating is composed of the following raw materials: polyvinyl acetate emulsion 50g / kg, titanium dioxide 1.3g / kg, polyaziridine crosslinking agent 1.6 g / kg, polyacrylic acid 0.8g / kg, aluminum silicate fiber 4g / kg, aluminum hydroxide 3g / kg, boron nitride powder 2g / kg, neodymium oxide composite zirconia ceramic powder 8g / kg, glycerol bisphosphate melamine salt 16g / kg , foaming agent 4g / kg, modified silicone hydrophobic agent 0.3 g / kg, paint film antifungal agent 0.7g / kg, dehydration catalyst 9g / kg, carbonizing agent 3.7g / kg, the balance is distilled water or deionized water .

[0027] In the above formula, the softening point of polyvinyl acetate emulsion is very low, between 110°C and 120°C, the coating is already in a softened and molten state before the flame retardant starts to decompose, so it will not affect the foaming of the flame retardant The expansion produces retardation, and the polyvinyl ...

Embodiment 2

[0040] Embodiment two is the same as embodiment one, and its difference is that, the preparation method of indoor expansion type fireproof steel structure coating comprises the following steps:

[0041] Step 1. Prepare materials according to the ratio of each component. Polyvinyl acetate emulsion SD-40 is 40g / kg, 200 mesh titanium dioxide is 1g / kg, polyethylenimine crosslinking agent TS280 is 1g / kg, polyacrylic acid TH-1100: 0.5 g / kg, aluminum silicate fiber 3g / kg, 200 mesh aluminum hydroxide powder 6g / kg, 200 mesh boron nitride powder 3g / kg, 150 mesh Nd 2 Zr 2 0 7 Ceramic powder 6g / kg, glycerol diphosphate melamine salt 10g / kg, melamine YT07-2006 3g / kg, modified silicone hydrophobic agent 0.2g / kg, iodopropynyl carbamate paint film anti Mold agent 0.5g / kg, ammonium polyphosphate 6g / kg, pentaerythritol YT09-2002 3g / kg, the balance is deionized water;

[0042] Step 2. Put the proportioned polyvinyl acetate emulsion SD-40 in a container, add polyethylenimine crosslinking agent...

Embodiment 3

[0047] Embodiment three is the same as embodiment two and embodiment one, and its difference is that, the preparation method of indoor expansion type fireproof steel structure coating comprises the following steps:

[0048] Step 1. Prepare materials according to the ratio of each component, polyvinyl acetate emulsion SD-40 is 60g / kg, 200 mesh titanium dioxide is 1g / kg, polyethylenimine crosslinking agent TS280 is 2g / kg, polyacrylic acid TH-1100: 1.0g / kg, aluminum silicate fiber 6g / kg, 200 mesh aluminum hydroxide powder 4g / kg, 200 mesh boron nitride powder 3g / kg, 150 mesh Nd 2 Zr 2 0 7 Ceramic powder 6g / kg, glycerol diphosphate melamine salt 20g / kg, melamine YT07-2006 5g / kg, modified silicone hydrophobic agent 0.5g / kg, iodopropynyl carbamate paint film anti Mold agent 1g / kg, ammonium polyphosphate 12g / kg, pentaerythritol YT09-2002 4g / kg, the balance is deionized water;

[0049] Step 2. Put the proportioned polyvinyl acetate emulsion SD-40 in a container, add polyethylenimine...

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Abstract

The invention discloses an indoor expansive type fireproof steel structure coating. The fireproof coating is prepared from raw materials as follows: 40-60 g / kg of a polyvinyl acetate emulsion, 1-2 g / kg of titanium dioxide, 1-2 g / kg of a polyethylenimin cross-linking agent, 0.5-1.0 g / kg of polyacrylic acid, 3-6 g / kg of aluminum silicate fibers, 3-6 g / kg of aluminum hydroxide, 2-3 g / kg of boron nitride powder, 6-8 g / kg of neodymium oxide composite zirconia ceramic powder, 10-20 g / kg of glycerin diphosphate melamine salt, 3-5 g / kg of a foaming agent, 0.2-0.5 g / kg of a modified organosilicon hydrophobic agent, 0.5-1 g / kg of a paint film mildew preventive, 6-12 g / kg of a dehydration catalyst, 3-4 g / kg of a carburizer and the balance of deionized water. The indoor expansive type fireproof steel structure coating has excellent antioxidant property and anti-aging property, the heat-insulating performance of a coating layer is effectively enhanced, an expanded carbon layer is not prone to cracking and falling off, and the defects of an existing indoor fireproof coating are effectively overcome.

Description

technical field [0001] The invention relates to the field of functional coatings, in particular to an indoor expansion type fireproof steel structure coating and a preparation method thereof. Background technique [0002] As a type of fire protection measures for steel structures, fire retardant coatings are one of the most convenient and effective measures. According to national standards, fire retardant coatings for steel structures can be divided into three types: thick coating type, thin coating type and ultra-thin type. Among them, the thickness of the thick-coated steel structure fireproof coating is generally between 8-50mm. It is a non-intumescent fireproof coating. It is mainly used in high-rise buildings and main load-bearing steel structures, and is not suitable for coating and protection of exposed steel structures; The thickness of the thin-coated steel structure fireproof coating is between 3-7mm. It is generally used on building steel structures that require a...

Claims

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Application Information

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IPC IPC(8): C09D131/04C09D5/18C09D5/08C09D5/14C09D7/12
CPCC09D131/04C08L2201/02C08L2201/08C08L2205/03C09D5/08C09D5/14C09D5/185C09D7/61C09D7/62C09D7/63C09D7/70
Inventor 蒋浪
Owner 成都创慧科达科技有限公司
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