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A kind of ultra-thin fireproof coating for steel structure and its application

A fire-resistant coating, ultra-thin technology, applied in fire-resistant coatings, anti-corrosion coatings, fire protection, etc., can solve problems such as poor appearance, potential safety hazards, and peeling off of fire-resistant coatings on platform canopy columns, so as to improve the fire-proof effect and reduce complex The number of times of application, or the effect of prolonging the protective effect

Active Publication Date: 2022-01-25
METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, my country's large-scale railway station buildings, platform canopies and other facilities have been put into use in large quantities. With the extension of the service life, some of the platform canopy columns have begun to have fire-resistant coating peeling off, which is poor in appearance and has potential safety hazards. Therefore, It is necessary to develop a fireproof coating suitable for the steel structure canopy column of the railway platform

Method used

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  • A kind of ultra-thin fireproof coating for steel structure and its application
  • A kind of ultra-thin fireproof coating for steel structure and its application
  • A kind of ultra-thin fireproof coating for steel structure and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The ultra-thin fireproof coating for steel structure of the present embodiment comprises A component and B component, and the weight ratio of A component and B component is 2.5:1, and wherein A component is made up of the composition of following parts by weight:

[0043] Silicone epoxy hybrid resin ( EF) 30 parts, liquid petroleum resin (C5) 6 parts, flame retardant (aluminum phenyl hypophosphite) 6 parts, carbon forming agent (pentaerythritol) 10 parts, carbon forming catalyst (ammonium polyphosphate) 10 parts, foaming agent (melamine) 9 parts, reactive diluent (AGE reactive diluent) 6 parts, rust inhibitor (APW-I aluminum tripolyphosphate) 10 parts, filler (R-902 titanium dioxide 5 parts, KPore-G200 nano airgel 0.6 parts of fine powder, 4 parts of 1250 mesh 5S calcined kaolin) 9.6 parts, additives (0.4 parts of Disponer 9250 wetting and dispersing agent, 0.1 part of BYK-085 defoamer, 0.5 parts of Deurheo202P rheology additive, 0.4 parts of S-8021 anti-settling agent...

Embodiment 2 to 6 and comparative example 1 to 5

[0055] Examples 2 to 6 and Comparative Examples 1 to 5 were all prepared according to the preparation method in Example 1, and the specific raw material composition ratios are shown in Table 1.

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Abstract

The invention provides an ultra-thin fire retardant coating for steel structures. The fire retardant coating includes component A and component B, wherein in parts by weight, component A includes: 30-58 parts of silicone epoxy hybrid resin , 4-8 parts of liquid petroleum resin, 5-10 parts of flame retardant, 5-10 parts of carbon-forming agent, 5-10 parts of carbon-forming catalyst, 5-10 parts of foaming agent, 3.0-6.0 parts of reactive diluent, filler 6-10 parts, 5-10 parts of rust inhibitor, 0.8-3.5 parts of additives, 2-5 parts of refractory fiber; component B includes: triethoxyaminosilane and polyoxyethylene in a weight ratio of 2-5:1 Propylenediamine. Compared with traditional epoxy fire-retardant coatings, the fire-retardant coating of the present invention is more suitable for steel structure coating construction that requires both fire protection and anti-corrosion, and has excellent adhesion, cracking resistance and weather resistance, and can also be used in high and low temperature alternating environments. There will be no cracking or falling off.

Description

Technical field [0001] The present invention relates to the technical field of fire retardant coatings. Specifically, the present invention relates to an ultra-thin fire retardant coating that can be used for steel structural parts and its preparation method and application. Background technique [0002] At present, intumescent fire retardant coatings for hydrocarbon flames are generally epoxy fire retardant coatings. This coating has good mechanical properties, but often has the defect that the formed fire retardant coating is easy to crack and fall off, especially when the film thickness is thick. , This is especially true under conditions with large ambient temperature differences. The main reasons for this phenomenon are: the hardened coating is thicker and the paint film is hard and brittle. When the internal stress of the paint film is greater than the cohesion, the paint film will crack; and when the internal stress of the paint film is greater than the adhesion, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/18C09D5/08C09D183/04C09D163/00C09D7/61C09D7/63C09D7/65C08G59/50B05D7/24B05D5/00E04B1/94
CPCC09D5/185C09D5/08C09D183/04C09D163/00C09D7/61C09D7/63C09D7/65C09D7/70C08G59/504C08G59/502B05D7/24B05D5/00E04B1/94C08L2201/02C08L2205/03C08K2003/2241C08K2003/327C08K2201/011C08K2003/2224C08G2150/60C08L63/00C08L57/02C08K13/04C08K7/10C08K5/544C08K3/22C08K3/346C08K3/32C08K5/5313C08K5/55C08K5/053C08K5/06C08K7/24C08L83/04
Inventor 王涛贾恒琼祝和权张恒杜存山李海燕吴韶亮魏曌王玮杜玮伊钟毓南阳张喆
Owner METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI
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