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A kind of water-based thin steel structure fireproof coating, fireproof mud and preparation method thereof

A technology of fire-resistant coatings and steel structures, applied in fire-resistant coatings, lignin coatings, coatings, etc., can solve the problems of weak adhesion and low fire-resistant limit of fire-resistant coatings, and achieve the purpose of improving adhesion, blocking temperature conduction, Enhances the effect of the inorganic expansion layer

Active Publication Date: 2020-11-13
福建漳平众知防火科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The first purpose of the present invention is to provide a water-based thin steel structure fireproof coating and its preparation method, aiming to solve the problems of low fire resistance and weak cohesion of fireproof coatings in the prior art

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  • A kind of water-based thin steel structure fireproof coating, fireproof mud and preparation method thereof

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preparation example Construction

[0036] This embodiment further provides a method for preparing the above-mentioned fireproof coating, which includes:

[0037] In parts by weight, aggregate, biomass powder, graphite, toughening agent, methyl cellulose ether, nano silicon dioxide, oxidized starch, and dipentaerythritol are mixed to obtain fireproof clay;

[0038] Mixing inorganic silicon flame retardant, waterproofing agent, wetting agent, dispersant, defoaming agent and sodium methyl silicate in parts by weight to obtain fireproofing liquid;

[0039] Mix fireproof mud and fireproof liquid according to the mass ratio of 1:0.8~1.2 (or 1:0.9~1.1).

[0040] The coating process of this fire retardant coating includes:

[0041] a. Derust and decontaminate steel components;

[0042] b. Before use, mix the fireproof mud and the fireproof liquid according to the mass ratio of 1:0.8~1.2, and then fully stir it before use (the fireproof coating is prepared according to the amount within 4 hours, and the prepared firep...

Embodiment 1

[0047] This embodiment provides a water-based thin steel structure fireproof coating, which includes fireproof mud and fireproof liquid used in conjunction;

[0048]The fireproof mud includes: 13 parts of aggregate, 7 parts of plant straw powder, 4 parts of graphite, 2 parts of polymer soluble rubber powder, 3 parts of methyl cellulose ether, 0.5 parts of nano-silica, 4 parts of oxidized starch part and 4 parts of dipentaerythritol;

[0049] The fireproof liquid includes, in parts by weight: 45 parts of inorganic silicon flame retardant, 14 parts of silicone resin, 0.1 part of anionic surfactant, 0.6 part of sodium tripolyphosphate, 0.3 part of emulsified silicone oil, and 5 parts of sodium methyl silicate .

[0050] The preparation method is as follows: respectively mix the above raw materials to obtain the fireproof mud and the fireproof liquid, and mix and stir the fireproof mud and the fireproof liquid at room temperature according to the mass ratio of 1:0.8 before use. ...

Embodiment 2

[0052] This embodiment provides a water-based thin steel structure fireproof coating, which includes fireproof mud and fireproof liquid used in conjunction;

[0053] The fireproof mud includes: 24 parts of aggregate, 4 parts of plant straw powder, 2 parts of graphite, 4 parts of polymer soluble rubber powder, 1 part of methyl cellulose ether, 1.5 parts of nano silicon dioxide, 2 parts of oxidized starch part and 6 parts of dipentaerythritol;

[0054] The fireproof liquid includes, in parts by weight: 35 parts of inorganic silicon flame retardant, 17 parts of silicone resin, 0.3 part of anionic surfactant, 0.4 part of sodium pyrophosphate, 0.1 part of emulsified silicone oil, and 3 parts of sodium methyl silicate.

[0055] The preparation method is as follows: respectively mix the above raw materials to obtain the fireproof mud and the fireproof liquid, and mix and stir the fireproof mud and the fireproof liquid at room temperature according to the mass ratio of 1:1.2 before us...

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Abstract

The invention provides waterborne thin-steel-structure fireproof coating and fireproof mud and a preparation method thereof and belongs to the field of fireproof materials. The fireproof coating comprises fireproof mud and fireproof liquid which are used cooperatively, wherein fireproof mud comprises aggregate, biomass powder, graphite, a toughening agent, methyl cellulose ether, nano-silica, oxidized starch and dipentaerythritol; the fireproof liquid comprises inorganic silicon flame retardant, a waterproof agent, a wetting agent, a dispersing agent, a defoaming agent and methyl sodium silicate. After a steel structure is coated with the waterborne thin-steel-structure fireproof coating, the fireproof coating layer fast forms oxygen-free large bubbles to form a multilayer multi-carbon linked copolymerized high-density hard membrane shell when the coating layer on the surface of the steel structure material meets with the high-temperature roasting of fire, the steel structure materialcan be effectively prevented from being burnt by flame, and long-term thermal-insulation protection for the steel structure can be achieved. Meanwhile, the fireproof coating layer obtained after coating is high in adhesive force, high in strength and resistant to scratching and collision.

Description

technical field [0001] The invention relates to the field of fireproof materials, in particular to a water-based thin steel structure fireproof coating, fireproof mud and a preparation method thereof. Background technique [0002] Steel structures have excellent characteristics such as high lightness, light weight, simple assembly, fast construction speed, and good earthquake resistance. They are more and more widely used in public buildings and civil buildings, especially in some super high-rise or large-span buildings. In addition to the great advantages shown in public buildings, the current prefabricated steel structure buildings have also been widely developed. What cannot be ignored is the fire resistance of the steel structure. When the temperature of the steel structure reaches 538°C, its mechanical strength drops rapidly and it is easy to collapse. A large number of experiments have shown that in the case of fire protection measures, the steel structure can only gu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D197/02C09D5/18C09D7/61C09D7/65C09D1/00
CPCC08K2201/011C08L2201/02C08L2205/035C09D1/00C09D5/185C09D7/61C09D7/65C09D7/70C09D183/04C08L83/04C08L97/02C08L1/28C08L3/10C08K13/04C08K7/26C08K3/346C08K3/36C08K3/04
Inventor 吴冬平孟东伟
Owner 福建漳平众知防火科技有限公司
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