Intumescent fireproof coating with ultrahigh corrosion resistance and preparation method thereof

A fire-resistant coating and anti-corrosion technology, applied in fire-resistant coatings, anti-corrosion coatings, coatings, etc., can solve the problems of incompatibility between primers and anti-corrosion intermediate paints, poor anti-corrosion and salt spray resistance, etc., and improve the ability of catalytic carbonization , Improve the effect of fire prevention, increase the effect of fire prevention and heat insulation

Inactive Publication Date: 2021-04-06
FUJIAN NAN FENG FIREPROOF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a super-high anti-corrosion intumescent fireproof coating and its preparation method, and solve the problem of poor anticorrosion and salt spray resistance of the steel structure intumescent fireproof coating in the above-mentioned background technology , Incompatibility between primer and anti-corrosion intermediate paint, interlayer adhesion, etc.

Method used

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  • Intumescent fireproof coating with ultrahigh corrosion resistance and preparation method thereof
  • Intumescent fireproof coating with ultrahigh corrosion resistance and preparation method thereof
  • Intumescent fireproof coating with ultrahigh corrosion resistance and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] An intumescent fireproof coating with ultra-high corrosion resistance is prepared from the following raw materials according to the following mass ratio through the following steps:

[0034](1) At the speed of 300-400r / min, add 18.7% water, 0.5% dispersing wetting agent, and 0.3% defoamer to the disperser and stir for 3-5min;

[0035] (2) At a speed of 400-900r / min, sequentially add 12% composite carbon-forming catalyst, 6% composite blowing agent, 6% pentaerythritol, 5% titanium dioxide, 8% Mg(OH) 2 , 5% mica powder, 6% kaolin, 3% rust inhibitor, 6% aluminum tripolyphosphate. Adjust the speed to 1800-2000r / min, disperse for 45-60min;

[0036] (3) Add 20% VAE emulsion, 0.7% freeze-thaw agent, 1.5% film-forming aid and 0.3% thickener at a rotating speed of 700-900r / min.

Embodiment 2

[0038] An intumescent fireproof coating with ultra-high corrosion resistance is prepared from the following raw materials according to the following mass ratio through the following steps:

[0039] (1) At the speed of 300-400r / min, add 18.7% water, 0.5% dispersing wetting agent, and 0.3% defoamer to the disperser and stir for 3-5min;

[0040] (2) At the speed of 400-900r / min, sequentially add 16% composite carbon-forming catalyst, 7% composite blowing agent, 7% pentaerythritol, 5% titanium dioxide, 7% Mg(OH) 2 , 4% mica powder, 4% kaolin, 3% rust inhibitor, 5% aluminum tripolyphosphate. Adjust the speed to 1800-2000r / min, disperse for 45-60min;

[0041] (3) Add 20% VAE emulsion, 0.7% freeze-thaw agent, 1.5% film-forming aid and 0.3% thickener at a rotating speed of 700-900r / min.

Embodiment 3

[0043] An intumescent fireproof coating with ultra-high corrosion resistance is prepared from the following raw materials according to the following mass ratio through the following steps:

[0044] (1) At the speed of 300-400r / min, add 18% water, 0.5% dispersing wetting agent, and 0.3% defoamer to the disperser and stir for 3-5min;

[0045] (2) At the speed of 400-900r / min, add 18% composite carbon-forming catalyst, 9% composite blowing agent, 8% pentaerythritol, 5% titanium dioxide, 5% Mg(OH) in sequence 2 , 4% mica powder, 3% kaolin, 3% rust inhibitor, 5% aluminum tripolyphosphate. Adjust the speed to 1800-2000r / min, disperse for 45-60min;

[0046] (3) Add 19% VAE emulsion, 0.7% freeze-thaw agent, 1.2% film-forming aid and 0.3% thickener at a rotating speed of 700-900r / min.

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Abstract

The invention discloses an intumescent fire-retardant coating with ultrahigh corrosion resistance and a preparation method of the intumescent fire-retardant coating. The fireproof coating is composed of water, a dispersing agent, a wetting agent, a defoaming agent, a composite charring catalyst, a composite foaming agent, pentaerythritol, mica powder, kaolin, aluminum triphosphate, zinc phosphate, magnesium hydroxide, VAE emulsion, a freeze-thawing agent, a coalescing agent, a thickening agent and the like. On the basis of existing fire prevention, a series of anti-corrosion and heat-insulation filler and salt spray resistant auxiliaries are added to achieve a certain salt spray resistant effect. The fireproof coating disclosed by the invention has fireproof and anti-corrosion functions, does not contain organic solvents, is low in price and high in construction tolerance, and has a wide application prospect in the field of intumescent fireproof coatings.

Description

technical field [0001] The invention belongs to the field of intumescent fireproof paint, in particular to an intumescent fireproof paint with super high corrosion resistance and a preparation method thereof. Background technique [0002] With the progress and development of society, high-rise buildings have sprung up like mushrooms after rain. Steel structures have been widely used in modern buildings due to their light weight, strong bearing capacity, short construction period, and strong deformation resistance. Although non-flammable, its mechanical properties deteriorate with temperature. When the temperature is higher than 450°C, the strength of the steel structure decreases rapidly. When the temperature exceeds 600°C, the steel will lose its bearing capacity and never cause the collapse of the rigid structure. The fire resistance limit of steel without any protection is generally about 15 minutes. For example, on September 11, 2001, the World Trade Center in New Yor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/04C09D5/18C09D5/08C09D7/61C09D7/63C09D7/65
CPCC09D131/04C09D5/185C09D5/08C09D7/61C09D7/70C09D7/63C09D7/65C08L2201/02C08K2003/2241C08K2003/2224C08K2003/328C08K2003/327C08L91/06C08K13/04C08K7/00C08K3/34C08K3/22C08K3/32C08K5/521C08K5/34922C09D5/022C09D5/084C09D7/43C08K5/527C08K2003/323C09D5/024C09D5/028C08K3/016C08K13/02
Inventor 方江海戴李宗刘清良徐欢欢郭春娥
Owner FUJIAN NAN FENG FIREPROOF TECH
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