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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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 fireproof coating for steel structures. The fireproof coating comprises component A and component B, wherein in parts by weight, component A comprises: 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 active diluent, filler 6‑10 parts, 5‑10 parts of antirust agent, 0.8‑3.5 parts of additives, 2‑5 parts of refractory fiber; component B contains: triethoxyaminosilane and polyoxygen in a weight ratio of 2‑5:1 Propylenediamine. Compared with the traditional epoxy fire retardant coating, the fire retardant coating of the present invention is more suitable for the steel structure coating construction that requires both fire prevention and corrosion protection, and has excellent adhesion, crack resistance and weather resistance, and is also suitable for high and low temperature alternating environments. There will be no cracking or falling off.

Description

technical field [0001] The invention relates to the technical field of fireproof coatings, in particular, the invention relates to an ultra-thin fireproof coating which can be used for steel structural parts, as well as its preparation method and application. Background technique [0002] At present, the intumescent fireproof coatings for hydrocarbon flames are generally epoxy fireproof coatings. This kind of coating has good mechanical properties, but it often has the defect that the formed fireproof coating is easy to crack and fall off, especially when the film thickness is relatively thick. , especially under the condition of large ambient temperature difference. The main reason for this phenomenon is: the hardened coating is thick, 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 paint film will then fal...

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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