Fireproof and corrosion-resistant coating applied to steel structures

A technology for anti-corrosion coatings and steel structures, applied in anti-corrosion coatings, fire-resistant coatings, coatings, etc., can solve the problems of low thermal insulation capacity, limited use, and increased steel structure load, so as to improve fire-resistant thermal insulation performance while taking into account Fire resistance, effect of improving fire resistance and corrosion resistance

Inactive Publication Date: 2019-03-01
安庆市泽烨新材料技术推广服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with other non-intumescent fire retardant coatings, the existing fire retardant coatings for steel structures have lower thermal insulation capacity in the initial stage of foaming and expansion, resulting in a large temperature rise of the steel structure before the thermal insulation layer is fully expanded, and the overall fire resistance effect is usually not as good as Non-intumescent fire-resistant coatings, and most of the coatings increase the load on the steel structure greatly, the application effect is not ideal, and the use is limited

Method used

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  • Fireproof and corrosion-resistant coating applied to steel structures
  • Fireproof and corrosion-resistant coating applied to steel structures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of modified potassium titanate whisker is:

[0021] Add potassium titanate whiskers to 3wt% maleic acid solution for ultrasonic dispersion, heat up to 80°C, then add nano-titanium dioxide and aluminate coupling agent, stir for 10 hours, and then centrifuge and vacuum dry.

[0022] The mass ratio of potassium titanate whiskers to aluminate coupling agent is 25:1, and the mass ratio of potassium titanate whiskers to nano titanium dioxide is 6:1.

Embodiment 2

[0024] The preparation method of modified potassium titanate whisker is:

[0025] Add potassium titanate whiskers to 6wt% maleic acid solution for ultrasonic dispersion, heat up to 90°C, then add nano-titanium dioxide and aluminate coupling agent, stir for 5 hours, and then centrifuge and vacuum dry.

[0026] The mass ratio of potassium titanate whiskers to aluminate coupling agent is 35:1, and the mass ratio of potassium titanate whiskers to nano titanium dioxide is 2:1.

Embodiment 3

[0028] A fireproof and anticorrosion coating for steel structures, comprising the following components in parts by weight:

[0029] 50 parts of acrylic emulsion, 20 parts of dibutyl phthalate, 6 parts of ammonium polyphosphate, 7 parts of sorbitol, 12 parts of aluminum hydroxide, 0.6 parts of sodium hexametaphosphate wetting agent, 0.5 parts of water-based acrylate copolymer, 12 parts of anti-corrosion filler and 26 parts of the modified potassium titanate whisker of Example 1. The anti-corrosion filler is a mixture of aluminum polyphosphate, zinc borate and barium metaborate.

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Abstract

The invention discloses a fireproof and corrosion-resistant coating applied to steel structures. The fireproof and corrosion-resistant coating is prepared from the following components in parts by weight: 40-60 parts of an acrylic emulsion, 10-30 parts of dibutyl phthalate, 4-8 parts of ammonium polyphosphate, 5-10 parts of sorbitol, 8-16 parts of aluminum hydroxide, 0.4-0.8 part of a wetting dispersant, 0.3-0.6 part of a flatting agent, 5-10 parts of corrosion-resistant filler and 20-30 parts of modified potassium titanate whisker, wherein the modified potassium titanate whisker is mainly prepared from potassium titanate whisker, nano titanium dioxide and an aluminate coupling agent. The fireproof coating is thin in coating layer and excellent in heat insulation and fireproof property.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a fireproof and anticorrosion coating for steel structures. Background technique [0002] With the development of economy and construction industry, steel structure has become the main building form at present due to its flexible structure, convenient construction, high strength and strong aesthetics. But its biggest defect is its poor fire resistance. When the steel surface temperature reaches 600°C, it will lose its strength and rigidity as a load-bearing material, which is extremely harmful. Therefore, fire prevention measures must be taken for steel structures. [0003] So far, there are relatively few reports on fireproof and anticorrosion coatings for steel structures. For example, Chinese patent CN1183211C uses high-chlorinated polyethylene and self-synthesized silicone-modified acrylate resin as the main film-forming substances. Add melamine phosphate and ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D5/18C09D5/08C09D7/61C09D7/63C09D7/47
CPCC08K2003/2227C08K2003/2241C08K2003/323C08K2003/327C08K2003/387C08K2201/011C08L2201/02C09D5/084C09D5/18C09D7/47C09D7/61C09D7/63C09D133/00C08L83/12C08K13/06C08K9/04C08K7/08C08K3/22C08K3/32C08K3/38C08K5/12
Inventor 汪琦
Owner 安庆市泽烨新材料技术推广服务有限公司
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