Waterborne ultrathin steel structured fireproof coating and preparation method thereof

A fire retardant coating, ultra-thin technology, applied in fire retardant coatings, epoxy resin coatings, coatings, etc., can solve the problem of poor flame retardancy, fire resistance and thermal insulation performance, environmental pollution, and large release of organic volatiles and other problems, to achieve the effect of excellent flame retardant performance, good comprehensive performance and little environmental pollution

Inactive Publication Date: 2017-06-13
北京昊天防火材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a water-based ultra-thin steel structure fireproof coating, and the raw material components include:

[0039] Epoxy emulsion, chlorine partial emulsion and silicone modified styrene-acrylic emulsion are mixed aqueous emulsion (viscosity is 500MPa s, solid content is 46wt%) according to mass ratio 1:6:10 composition, 15 parts by weight;

[0040] 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 1:1, 40 parts by weight;

[0041] Melamine, 10 parts by weight;

[0042] Pentaerythritol, 20 parts by weight;

[0043] The mixture of titanium dioxide, talcum powder and mica powder according to the mass ratio of 1:1:1, 10 parts by weight;

[0044] Zinc borate, 4 parts by weight;

[0045] Sodium nitrite, 0.5 parts by weight;

[0046] Aluminum silicate fiber, 10 parts by weight;

[0047] Sodium bentonite, 1 part by weight;

[0048] W...

Embodiment 2

[0058] This embodiment provides a water-based ultra-thin steel structure fireproof coating, and the raw material components include:

[0059] The mixed aqueous emulsion (viscosity is 2000MPa s, solid content is 48wt%) that epoxy emulsion, chlorine partial emulsion and organosilicon modified styrene-acrylic emulsion are formed according to mass ratio 1:8:12, 30 parts by weight;

[0060] A mixture of ammonium polyphosphate with a degree of polymerization of 1000 and ammonium polyphosphate with a degree of polymerization of 100 according to a mass ratio of 2:1, 20 parts by weight;

[0061] Melamine, 20 parts by weight;

[0062] Pentaerythritol, 10 parts by weight;

[0063] The mixture of titanium dioxide, talcum powder and mica powder according to the mass ratio of 3:1:1, 30 parts by weight;

[0064] A mixture of zinc borate, potassium fluoroborate and sodium fluoroborate in a mass ratio of 1:1:1, 1 part by weight;

[0065] Sodium nitrite, 2 parts by weight;

[0066] A mixtur...

Embodiment 3

[0078] This embodiment provides a water-based ultra-thin steel structure fireproof coating, and the raw material components include:

[0079] The mixed aqueous emulsion (viscosity is 1500MPa s, solid content is 47wt%) that epoxy emulsion, chlorine partial emulsion and organosilicon modified styrene-acrylic emulsion are formed according to mass ratio 1:7:11, 20 parts by weight;

[0080] 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 1.5:1, 24 parts by weight;

[0081] Melamine, 12 parts by weight;

[0082] Pentaerythritol, 12 parts by weight;

[0083] The mixture of titanium dioxide, talcum powder and mica powder according to the mass ratio of 2:1:1, 6 parts by weight;

[0084] A mixture of zinc borate, potassium fluoroborate and sodium fluoroborate in a mass ratio of 1:1:1, 1 part by weight;

[0085] Sodium nitrite, 0.5 parts by weight;

[0086] A mixt...

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Abstract

The invention relates to a waterborne ultrathin steel structured fireproof coating and a preparation method thereof. In the fireproof coating, by adopting a mixed waterborne emulsion consisting of epoxy emulsion, vinyl chloride-vinylidene chloride copolymer and organosilicone modified styrene-acrylic emulsion in a specific mass ratio as the base of matrix emulsion and adding ammonium polyphosphate, melamine, pentaerythritol, pigment filler, a strengthening agent, an antirust agent, an anti-cracking agent, a thickening agent and water as raw materials, the prepared waterborne ultrathin steel structured fireproof coating has the advantages of good flame retardance, strong heat insulating property, excellent fire resistance and low environmental pollution; and moreover, when applied to a steel structure, the waterborne ultrathin steel structure fireproof coating has strong adhesion with the matrix and good comprehensive performance. The waterborne ultrathin steel structure fireproof coating provided by the invention is a fireproof coating applicable to thin steel structures inside and outside, and conforms to the standard of General Specifications of Fire Resistive Coating for Steel Structure of GB14907-2002; and the duration of fire resistance reaches 2-2.5h.

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 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 500°C, its strength drops to 40%-50%, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D163/00C09D127/06C09D5/18C09D7/12C08F283/12C08F220/18C08F212/08
CPCC08F283/12C08K2201/014C08L2201/02C08L2201/08C08L2205/03C09D5/18C09D7/61C09D7/63C09D7/70C09D151/085C08L63/00C08L27/06C08K13/04C08K2003/323C08K5/053C08K5/34922C08K2003/2241C08K3/34C08F220/1808
Inventor 徐宝惠朱清革李志新
Owner 北京昊天防火材料厂
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