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Ultraviolet-resistant radiation-protection aqueous ultra-thin fire resistive coating for steel structure and preparation method thereof

A UV-resistant and fire-resistant coating technology, applied in fire-resistant coatings, coatings, etc., can solve problems such as poor flame retardancy, fire resistance and heat insulation performance, large release of organic volatiles, and affecting the service life of steel structures. Achieve the effects of good flame retardancy, good weather resistance and excellent fire resistance

Active Publication Date: 2017-06-23
北京茂源防火材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the existing ultra-thin fireproof coatings for steel structures are solvent-based coatings with organic solvents as the dispersion medium, which not only have poor flame retardancy, fire resistance and heat insulation performance, but also release a large amount of organic volatiles and cause serious environmental pollution. Moreover, it is not resistant to ultraviolet radiation and has poor weather resistance, which affects the service life of the steel structure.

Method used

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  • Ultraviolet-resistant radiation-protection aqueous ultra-thin fire resistive coating for steel structure and preparation method thereof
  • Ultraviolet-resistant radiation-protection aqueous ultra-thin fire resistive coating for steel structure and preparation method thereof
  • Ultraviolet-resistant radiation-protection aqueous ultra-thin fire resistive coating for steel structure and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] This embodiment provides a water-based ultra-thin fireproof coating for steel structures resistant to ultraviolet rays and radiation. The raw material components include:

[0034] Ethylene-vinyl acetate emulsion 707 # (viscosity is 2000MPa s, solid content is 55wt%), 6 parts by weight;

[0035] Polyvinyl acetate emulsion 235 # (viscosity is 25000MPa s, solid content is 35wt%), 15 parts by weight;

[0036] A mixture of ammonium polyphosphate with a degree of polymerization of 1000 and ammonium polyphosphate with a degree of polymerization of 30 according to a mass ratio of 2:3, 25 parts by weight;

[0037] Melamine, 12.5 parts by weight;

[0038] Pentaerythritol, 12.5 parts by weight;

[0039] Zinc borate (ZnO accounts for 38wt%, B 2 o 3 accounted for 48wt%, water of crystallization accounted for 14wt%, particle size is 325 mesh), 2 parts by weight;

[0040] Dicyandiamide, 1 part by weight;

[0041] Expandable graphite (expandable multiple of 500), 1 part by weig...

Embodiment 2

[0048] This embodiment provides a water-based ultra-thin fireproof coating for steel structures resistant to ultraviolet rays and radiation. The raw material components include:

[0049] Ethylene-vinyl acetate emulsion 707 # (viscosity is 1500MPa s, solid content is 53wt%), 5 parts by weight;

[0050] Polyvinyl acetate emulsion 235 # (viscosity is 20000MPa s, solid content is 33wt%), 10 parts by weight;

[0051] A mixture of ammonium polyphosphate with a degree of polymerization of 1200 and ammonium polyphosphate with a degree of polymerization of 100 according to a mass ratio of 1:1, 20 parts by weight;

[0052] Melamine, 10 parts by weight;

[0053] Pentaerythritol, 10 parts by weight;

[0054] Zinc borate (ZnO accounts for 37wt%, B 2 o 3 accounted for 46wt%, water of crystallization accounted for 13wt%, particle size is 300 mesh), 0.5 parts by weight;

[0055] Dicyandiamide, 0.5 parts by weight;

[0056] Expandable graphite (expandability 100), 0.5 parts by weight; ...

Embodiment 3

[0063] This embodiment provides a water-based ultra-thin fireproof coating for steel structures resistant to ultraviolet rays and radiation. The raw material components include:

[0064] Ethylene-vinyl acetate emulsion 707 # (viscosity is 2500MPa s, solid content is 57wt%), 15 parts by weight;

[0065] Polyvinyl acetate emulsion 235 # (viscosity is 30000MPa s, solid content is 37wt%), 30 parts by weight;

[0066] A mixture of ammonium polyphosphate with a degree of polymerization of 1000 and ammonium polyphosphate with a degree of polymerization of 60 according to a mass ratio of 3:5, 30 parts by weight;

[0067] Melamine, 15 parts by weight;

[0068] Dicyandiamide, 3.5 parts by weight;

[0069] Pentaerythritol, 15 parts by weight;

[0070] Zinc borate (ZnO accounts for 40wt%, B 2 o 3 accounted for 49wt%, water of crystallization accounted for 15wt%, particle size is 350 mesh), 3.0 parts by weight;

[0071] Expandable graphite (expandable multiple 1000), 3.5 parts by w...

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Abstract

The invention relates to an ultraviolet-resistant radiation-protection aqueous ultra-thin fire resistive coating for a steel structure and a preparation method thereof. On the basis of adopting an ethylene-vinyl acetate emulsion and a polyvinyl acetate emulsion as matrix emulsions, through also adding an ammonium polyphosphate, melamine, dicyandiamide, pentaerythritol, zinc borate, expandable graphite, a light stabilizer and water as raw-material components for the fire resistive coating, the prepared and obtained fire resistive coating is enabled to be not only good in flame resistance, high in heat insulation and excellent in fire resistive performance and but also have advantages of good ultraviolet resistance and anti-radiation performance, good weather resistance and the like; the fire resistive coating provided by the invention is used in the steel structure; the adhesiveness with a matrix is high; the coating has weather-resistant, ultraviolet-resistant, anti-radiation and waterproof functions, and is good in comprehensive performance. The fire resistive coating provided by the invention can be used for an indoor steel structure, and accords with to a GB14907-2002 Fire Resistive Coating for Steel Structure; the fire resistance rating reaches 2h.

Description

technical field [0001] The invention belongs to the technical field of fireproof coatings, and in particular relates to a water-based ultra-thin steel structure fireproof coating with UV resistance and radiation protection and a preparation method thereof. Background technique [0002] As a form of building structure, steel structure is widely used in the construction industry due to its high strength, light weight, good extensibility, earthquake resistance and short construction period. However, since the steel structure itself is non-combustible, the problem of fire protection and heat insulation protection of the steel structure was once ignored by people. According to relevant domestic and foreign reports and the tests and statistics of relevant institutions, the fire resistance of steel structure buildings is worse than that of masonry structures and reinforced concrete structures. The mechanical strength of steel decreases with the increase of temperature. At about 50...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/04C09D123/08C09D7/12C09D5/18
CPCC08L2201/02C08L2201/08C09D5/18C09D7/61C09D7/63C09D7/70C09D131/04C08L23/0853C08K13/04C08K7/24C08K2003/323C08K5/34922C08K5/3155C08K5/053C08K2003/387C08K2003/2296C08K2003/2241C08K3/34
Inventor 孙佳福
Owner 北京茂源防火材料厂
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