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Ultra-thin fireproof coating for steel structure and application of ultra-thin fireproof coating

A fire retardant coating, ultra-thin technology, applied in fire retardant coatings, anti-corrosion coatings, fire protection and other directions, can solve problems such as hidden safety hazards, poor appearance, fire retardant coating on platform canopy columns, etc. number of applications, or the effect of prolonged protection

Active Publication Date: 2020-10-13
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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  • Ultra-thin fireproof coating for steel structure and application of ultra-thin fireproof coating
  • Ultra-thin fireproof coating for steel structure and application of ultra-thin fireproof coating
  • Ultra-thin fireproof coating for steel structure and application of ultra-thin fireproof coating

Examples

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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 a steel structure. The fireproof coating comprises a component A and a component B. The component A comprises the following materials in parts by weight: 30-58 parts of organosilicon epoxy hybrid resin; 4-8 parts of liquid petroleum resin; 5-10 parts of a flame retardant; 5-10 parts of a carbon forming agent; 5-10 parts of a carbon formingcatalyst; 5-10 parts of a foaming agent; 3.0-6.0 parts of an active diluent; 6-10 parts of a filler; 5-10 parts of an antirust agent; 0.8-3.5 parts of an auxiliary agent; and 2-5 parts of refractoryfibers. The component B comprises triethoxyaminosilane and polyoxypropylene diamine in a weight ratio of (2-5): 1. Compared with a traditional epoxy fireproof coating, the fireproof coating disclosedby the invention is more suitable for steel structure coating construction needing both fire prevention and corrosion prevention, has excellent adhesive force, cracking resistance and weather resistance, and does not crack or fall off in a high-low temperature alternating environment.

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. This is especially true under the conditions of large ambient temperature differences. 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 w...

Claims

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Application Information

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Patent Type & Authority Applications(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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