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Aqueous environmental protection ultration expansion type steel structure fireproof paint and its preparation method

A technology for fire-resistant coatings and steel structures, applied in fire-resistant coatings, coatings, liquid injection devices, etc., can solve the problems of large dosage, cracking of expansion layer, and affecting coating adhesion, etc., and achieve good decorative performance, low cost and low dosage little effect

Inactive Publication Date: 2009-07-15
北京首纳东方科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, Chinese patent CN 1394923A discloses a water-based thin intumescent steel structure fireproof coating, which also uses expandable graphite as an expansion reinforcing material, but the required amount is relatively large, such as 4-10%, which will affect the adhesion of the coating. Excessive internal stress may be generated to crack the expansion layer; in addition, when the fireproof coating is 3 mm thick, its fire resistance limit can only reach 75 minutes

Method used

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  • Aqueous environmental protection ultration expansion type steel structure fireproof paint and its preparation method
  • Aqueous environmental protection ultration expansion type steel structure fireproof paint and its preparation method
  • Aqueous environmental protection ultration expansion type steel structure fireproof paint and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] According to the components listed below and content (weight percentage), prepare steel structure fireproof coating of the present invention:

[0079] water 17.35

[0080] Acrylic Emulsion 14.2

[0081] Chlorine partial emulsion 14.2

[0082] Expandable graphite 0.2

[0083] Ammonium polyphosphate with degree of polymerization n>1000 21

[0084] Pentaerythritol 8.5

[0085] Melamine 12.7

[0086] Titanium dioxide 8

[0087] Talc powder 2

[0088] 1,2-propanediol 0.17

[0089] 3-Methacryloxypropenetrimethoxysilane 0.56

[0090] 1,2-Benzisothiazolin-3-one 0.07

[0091] Polymethyltriethoxysilane 0.05

[0092] Organic Bentonite 1.

[0093] Add the above-mentioned additives into the dispersion tank, then add pentaerythritol into the water and raise the temperature to about 80°C. After the pentaerythritol dissolves, pour it into the dispersion tank, and immediately add the above-mentioned solid flame-retardant components and fillers, and then the The line speed is...

Embodiment 2

[0097] According to the following listed components and content (weight percentage), prepare steel structure fireproof coating of the present invention:

[0098] water 13.35

[0099] Acrylic emulsion 14.7

[0100] Chlorine partial emulsion 14.7

[0101] Expandable graphite 0.2

[0102] Ammonium polyphosphate with degree of polymerization n>1000 22

[0103] Pentaerythritol 9.5

[0104] Melamine 13.7

[0105] Titanium dioxide 8

[0106] Talc powder 2

[0107] 1,2-propanediol 0.17

[0108] 3-Methacryloxypropenetrimethoxysilane 0.56

[0109]1,2-Benzisothiazolin-3-one 0.07

[0110] Polymethyltriethoxysilane 0.05

[0111] Organic Bentonite 1.

[0112] Add the additives to the dispersion tank, then mix the pulverized and sieved pentaerythritol with solid components such as melamine, titanium dioxide, ammonium polyphosphate, and expandable graphite, and add it to the dispersion tank and stir to make it evenly mixed, and finally add Stir the organic bentonite for another 10...

Embodiment 3

[0115] According to the components listed below and content (weight percentage), prepare steel structure fireproof coating of the present invention:

[0116] water 20.35

[0117] Acrylic Emulsion 14.2

[0118] Chlorine partial emulsion 14.2

[0119] Expandable graphite 0.2

[0120] Ammonium polyphosphate with degree of polymerization n>1000 19

[0121] Pentaerythritol 7.5

[0122] Melamine 11.7

[0123] Titanium dioxide 8

[0124] Talc powder 2

[0125] 1,2-propanediol 0.17

[0126] 3-Methacryloxypropenetrimethoxysilane 0.56

[0127] 1,2-Benzisothiazolin-3-one 0.07

[0128] Polymethyltriethoxysilane 0.05

[0129] Hydroxyethyl Cellulose 1

[0130] Organic bentonite 1

[0131] Add the above-mentioned additives into the dispersion tank, then add pentaerythritol into the water and raise the temperature to about 80°C. After the pentaerythritol dissolves, pour it into the dispersion tank, and immediately add the above-mentioned solid flame-retardant components and filler...

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Abstract

The invention provides a water-based environmental protection ultra-thin intumescent fireproof coating for steel structures. The fireproof coating uses water as a dispersion medium, scaly expandable graphite as an expansion reinforcing material, and one or more emulsions such as acrylic emulsion and chlorine partial emulsion as the expansion medium. Film-forming substances, the expansion system adopts ammonium polyphosphate, pentaerythritol, melamine, etc. The preparation process includes the steps of first adding pentaerythritol into water, heating up to about 80 DEG C to dissolve, then adding solid components and dispersing at high speed, and then pouring cooling water into the jacket of the dispersion tank to crystallize the pentaerythritol. The fire retardant coating rapidly expands and foams after encountering fire, so that the temperature of the steel structure will not rise to the critical temperature of 540°C in more than 2 hours, so that there is enough time to extinguish the fire to ensure the safety of the building. The fire retardant coating is water-based and ultra-thin, and no toxic gas is released during construction. It can be widely used in various steel structure buildings, such as stadiums, opera houses, and high-rise buildings.

Description

technical field [0001] The invention relates to a water-based environmentally friendly ultra-thin intumescent steel structure fireproof coating and a preparation method thereof. Specifically, the present invention relates to a water-based environmentally friendly ultra-thin intumescent steel structure fireproof coating prepared by using water as the dispersion medium, using emulsion as the base material, and using expandable graphite as the expansion reinforcing material, and according to its different solid content. different preparation methods. Background technique [0002] At present, the rapid economic and social development has promoted the continuous upgrading and replacement of building materials, resulting in an increasing number of large buildings, and the main load-bearing components of these large buildings mostly rely on strong and light steel, which endows the building with a wide, The style of lightness, simplicity and smoothness without losing stability will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/02C09D5/18B05B7/14
Inventor 咸才军刘学军付若愚郭保文郭奋关延涛
Owner 北京首纳东方科技有限公司
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