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Fireproof paint for steel structure

A fireproof coating and steel structure technology, applied in the field of coatings, can solve the problems of high temperature resistance, water resistance and poor aging resistance

Inactive Publication Date: 2018-11-23
WUHU YUANKUI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a fireproof coating for steel structures, which not only has good heat insulation performance, but also solves the problems of poor high temperature resistance, water resistance and aging resistance caused by the addition of traditional flame retardants

Method used

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  • Fireproof paint for steel structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation method of flame retardant is:

[0020] Add nano-silica to the polypolyol phosphate liquid for ultrasonic dispersion to obtain a suspension. After the suspension is heated to 85°C, vinyltrimethoxysilane is added dropwise to react. After the end, it can be dried by centrifugal vacuum. The mass ratio of nano-silica, polypolyol phosphate and vinyltrimethoxysilane is 5:14:1.

Embodiment 2

[0022] The preparation method of flame retardant is:

[0023] Add nano-silica to the polypolyol phosphate liquid for ultrasonic dispersion to obtain a suspension. After the suspension is heated to 80°C, γ-methacryloxypropyltrimethoxysilane is added dropwise to react. After the end Centrifuge and vacuum dry. The mass ratio of nano silicon dioxide, polypolyol phosphate and γ-methacryloxypropyltrimethoxysilane is 8:17:3.

Embodiment 3

[0025] A kind of fireproof paint for steel structure, according to parts by weight, comprises the following components:

[0026] 50 parts of acrylic emulsion, 28 parts of styrene-acrylic emulsion, 6 parts of ammonium bicarbonate, 7 parts of pentaerythritol, 12 parts of flame retardant of embodiment 1, 0.6 part of sodium hexametaphosphate wetting agent, 0.5 part of water-based acrylate copolymer and titanium 10 parts of white powder, 10 parts of montmorillonite.

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Abstract

The invention discloses fireproof paint for a steel structure. The fireproof paint is characterized by comprising the following components in parts by weight: 40-60 parts of acrylic acid emulsion, 20-40 parts of styrene-acrylate emulsion, 4-8 parts of ammonium hydrogen carbonate, 5-10 parts of pentaerythritol, 8-16 parts of a flame retardant, 0.4-0.8 part of a wetting dispersant, 0.3-0.6 part of aflatting agent and 18-24 parts of filler, wherein the flame retardant is mainly prepared by nano silicon dioxide, polyalcohol phosphate and a silane coupling agent. The waterproof paint is good in heat insulation, and solves the problems such as high temperature resistance, water resistance and ageing resistance of a conventional flame retardant.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a fireproof coating for steel structures. Background technique [0002] Steel structure engineering has the advantages of light weight, large usable space, easy installation, short construction period, good seismic performance, fast investment recovery, and less environmental pollution. It is widely used in modern times, but it has the fatal weakness of poor fire resistance. Under normal load conditions, the steel structure will lose its load-bearing function at around 540°C, while in a hydrocarbon fire environment, the temperature usually rises to 1000°C within 10 minutes. Under such an environment, the steel structure will quickly deform. Local damage occurs and the bearing capacity is lost. In order to improve the fire-resistant performance of steel structures, the outer periphery of steel structures needs to be clad with heat insulation to improve the fire-resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D125/14C09D5/18
CPCC08K2201/011C08L2201/02C08L2201/08C09D5/18C09D133/04C08L25/14C08K13/06C08K9/06C08K3/36C08K5/521
Inventor 章波郭元
Owner WUHU YUANKUI NEW MATERIAL TECH CO LTD
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