Self-cleaning and fireproof multifunctional coating for steel structure and preparation method of self-cleaning and fireproof multifunctional coating

A self-cleaning, steel structure technology, applied in the direction of fireproof coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of dust and gas pollution, increased self-weight, unsightly steel structure materials, etc., to achieve good heat resistance and mechanical Performance, increasing hydrophobicity, improving self-cleaning ability

Inactive Publication Date: 2019-10-18
ZHUZHOU FEILU ADVANCED MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the acceleration of industrialization, the problem of environmental pollution is increasing day by day, among which dust and gas pollution are particularly serious, causing problems such as unsightly steel structure materials, increased self-weight, and potential safety hazards, and outdoor steel structure materials are generally tall and difficult to clean Therefore, there is a great market for developing a coating that only needs to be washed with water, or the steel st

Method used

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  • Self-cleaning and fireproof multifunctional coating for steel structure and preparation method of self-cleaning and fireproof multifunctional coating
  • Self-cleaning and fireproof multifunctional coating for steel structure and preparation method of self-cleaning and fireproof multifunctional coating
  • Self-cleaning and fireproof multifunctional coating for steel structure and preparation method of self-cleaning and fireproof multifunctional coating

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Experimental program
Comparison scheme
Effect test

Embodiment

[0041] The production formula of coating component A is shown in Table 1:

[0042] Table 1

[0043]

[0044]

[0045] Component B: Bayhydrol 110 waterborne polyurethane curing agent. The mass ratio of component A and component B is 5:1, and the coating is cured by mixing during use.

[0046] Coating component A production steps:

[0047] Add component 1 into the dispersion tank and stir at a high speed of 1000-1200r / min to disperse evenly, and add component 2 to adjust the pH value to 9.5-10. Add components 3-4 while stirring, and disperse evenly at 1000-1200r / min. Add components 5-14 while stirring, 1200-1500r / min high-speed stirring and grinding until the fineness is below 20 microns, adjust the consistency with component 15 during the addition process, and adjust the consistency with a thickener after grinding. The outflow time of 4 cups is 50-60 seconds, and the material is packaged. Note: The temperature should not exceed 50 °C during the entire production proc...

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Abstract

The invention discloses a self-cleaning and fireproof multifunctional coating for a steel structure and a preparation method of the self-cleaning and fireproof multifunctional coating. The multifunctional coating comprises a component A and a component B, wherein the component B comprises a curing agent, and the component A comprises the following components: in parts by mass, 30-40 parts of silicone-modified waterborne polyurethane resin, 3-8 parts of modified nano titanium dioxide, 5-10 parts of a hydroxide inorganic flame retardant and 25-40 parts of an intumescent flame retardant. The silicone-modified waterborne polyurethane resin is adopted as a film-forming substrate, the advantages of silicone and polyurethane can be achieved at the same time, and good heat resistance and mechanical properties are exhibited; and meanwhile the modified nano titanium dioxide is added to the formula, the hydrophobicity of the coating is increased, the self-cleaning ability is improved, and the coating has both functions of fire proofing and self-cleaning.

Description

technical field [0001] The invention relates to a coating for steel structures, in particular to a self-cleaning and fireproof multifunctional coating for steel structures and a preparation method thereof. Background technique [0002] In recent years, steel structures have been widely used in the construction industry due to their advantages of high strength, light weight, good extensibility, earthquake resistance, and short construction period. However, at an ambient temperature exceeding 600°C, the fire resistance limit of unprotected ordinary construction steel is about 10 minutes, which does not meet the requirements of fire safety regulations. Therefore, the fire protection of steel structures is extremely important. [0003] With the acceleration of industrialization, the problem of environmental pollution is increasing day by day, among which dust and gas pollution are particularly serious, causing problems such as unsightly steel structure materials, increased self...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D5/18C09D7/62
CPCC08K2003/2224C08K2003/2227C08K2003/2241C08K2003/323C08K2201/011C09D5/185C09D175/04C09D7/62C08K13/06C08K9/06C08K3/22C08K5/34922C08K5/053C08K3/32
Inventor 李彩云范国栋郭俊李德斌陆雄郭海涛
Owner ZHUZHOU FEILU ADVANCED MATERIAL TECH CO LTD
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