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A kind of fireproof coating for steel structure surface and its application

A technology for fire-resistant coatings and steel structures, applied in fire-resistant coatings, anti-corrosion coatings, coatings, etc., can solve problems such as poor appearance, fire-resistant coatings on platform canopy columns, and potential safety hazards, achieving low solubility and improving fire protection. effect, the effect of excellent adhesion

Active Publication Date: 2022-01-07
铁科金化检测中心有限公司 +3
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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 fireproof coating for steel structure surface and its application
  • A kind of fireproof coating for steel structure surface and its application
  • A kind of fireproof coating for steel structure surface and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The anti-freezing ultra-thin finish type fireproof coating of the present embodiment consists of the following components by weight: 12 parts of fluorosilicone emulsion (SD-5681), 35 parts of silicon acrylic emulsion (SD-528), 2 parts of fire retardant (Aluminum phenyl hypophosphite), 12 parts of carbon forming agent (expandable graphite), 15 parts of foaming agent (melamine resin coated ammonium polyphosphate (MF-APP)), 3 parts of 48# industrial grade white oil, filler 8 parts (5 parts of R-902 titanium dioxide, 1 part of KPore-G200 nano airgel powder, 2 parts of 1250 mesh 5S calcined kaolin), 10 parts of rust inhibitor (APW-I aluminum tripolyphosphate), 1 part of additive ( 0.4 part of NC polyphosphate sodium salt dispersant, 0.1 part of DH-202 defoamer, 0.5 part of RHEOLATE299 water-based rheological additive), 0.5 part of antibacterial agent (DEUADD MB-11 water-based preservative), 0.5 part of pH regulator (DEUADD MA-95pH regulator), 1 part of refractory fiber (ba...

Embodiment 2 to 6 and comparative example 1 to 5

[0040] 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. Among them, the anti-flash rust agent is SC2190Z anti-flash rust agent.

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Abstract

The invention provides a fireproof coating for the surface of a steel structure. The fireproof coating comprises the following components in parts by weight: 12-25 parts of fluorosilicon emulsion, 20-35 parts of silicon-acrylic emulsion, and 2-8 parts of flame retardant 2-12 parts of carbon forming agent, 15-25 parts of foaming agent, 3-8 parts of white oil, 8-15 parts of filler, 3-10 parts of anti-rust agent, 0.5-1.5 parts of auxiliary agent, 0.1 part of antibacterial agent ‑0.5 parts, pH regulator 0.1‑0.5 parts, refractory fiber 1‑3 parts. Compared with the traditional epoxy fireproof coating, the fireproof coating of the present invention is more suitable for the steel structure coating construction that requires both fireproofing and anticorrosion, 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 a fireproof coating which can be used on the surface of steel structures, 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 will ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D183/08C09D5/18C09D7/61C09D5/08
CPCC09D143/04C09D183/08C09D5/185C09D7/61C09D7/70C09D5/08C08L2201/02C08K2003/323C08K2003/2241C08K2201/011C08K2003/327C08K2003/2224C08L83/08C08K13/06C08K5/5313C08K7/24C08K9/10C08K3/32C08K3/22C08K3/346C08K7/10C08K7/26C08L43/04C08K13/04C08K5/06C08K5/34922
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 铁科金化检测中心有限公司
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