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Super thin no-halogen less-smoke fire proof organic-inorganic composite paint and its prepn process

A fire-resistant coating and inorganic composite technology, applied in fire-resistant coatings, polyester coatings, epoxy resin coatings, etc., can solve problems such as suffocation, failure to achieve the flame-retardant effect of halogen flame retardants, etc.

Inactive Publication Date: 2009-07-29
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the formula design of fire retardant coatings, flame retardants containing halogens are often added. This type of fire retardant coating has a relatively good flame retardant effect, but it will release a lot of smoke and hydrogen halide gas during the combustion process, which is easy to suffocate people. , a large number of fire analyzes have shown that the proportion of fatalities caused by toxic smoke is much higher than that caused by high-temperature burning
However, the flame retardant effect of the halogen flame retardant substitute products used in the current fireproof coatings, such as phosphorus flame retardants and nitrogen flame retardants, is not as good as that of halogen flame retardants.

Method used

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  • Super thin no-halogen less-smoke fire proof organic-inorganic composite paint and its prepn process
  • Super thin no-halogen less-smoke fire proof organic-inorganic composite paint and its prepn process
  • Super thin no-halogen less-smoke fire proof organic-inorganic composite paint and its prepn process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] Organic-inorganic nano-hybrid resin formula 1

[0102] Composition Amount (g)

[0103] phosphoric acid 1

[0104] Citric acid 3

[0105] 3-Glycidyl ether methoxytrimethoxysilane 18

[0106] Propyltrimethoxysilane 37

[0107] Ethanol 10

[0108] Isopropanol 8

[0109] water 20

[0110] Ethyl silicate 3

[0111] In a reactor equipped with a stirrer, a thermometer, a condenser, and a dropping funnel, add 18 grams of 3-glycidyl ether methoxytrimethoxysilane, 37 grams of propyltrimethoxysilane, and 3 grams of ethyl silicate. Esters, 10 grams of ethanol, controlled temperature 20-40 ° C, 1000rpm stirring for 10 minutes, 8 grams of isopropanol, 22 grams of water, 1 gram of phosphoric acid, 3 grams of citric acid, mixed evenly and placed in the dropping funnel, at 200 At -400rpm, add dropwise at 20-40°C in 1-2 hours, and continue stirring at 50-70°C for 20 hours to obtain.

Embodiment 2

[0113] Organic-inorganic nano-hybrid resin formula 2

[0114]Composition Amount (g)

[0115] Oxalic acid 2

[0116] Phenylepoxydiethoxysilane 20

[0117] n-Hexadecyltriethoxysilane 34

[0118] Butyl acetate 40

[0119] water 3

[0120] Diisopropyl di(acetylacetonate)titanate 0.5

[0121] Aluminum acetylacetonate 0.5

[0122] The preparation method is the same as in Example 1.

Embodiment 3

[0124] Organic-inorganic nano-hybrid resin formula 3

[0125] Composition Amount (g)

[0126] Acetic acid 0.5

[0127] Phytic acid 7

[0128] Silmethoxy-terminated polydimethylsiloxane 18

[0129] γ-Piperazinylpropylmethyldimethoxysilane 15

[0130] Methyltrimethoxysilane 10

[0131] Methyl amyl ketone 19

[0132] Acetone 20

[0133] water 5

[0134] Propyl silicate 3.5

[0135] n-propoxyzirconate 2

[0136] The preparation method is the same as in Example 1.

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Abstract

The invention relates to a halogen-free low-smoke ultra-thin organic-inorganic composite fireproof coating and a preparation method thereof. High-temperature-resistant organic-inorganic nano-hybrid resin and organic resin are compounded, and high-temperature-resistant pigments and fillers, char-forming agents, foaming agents, catalysts, additives, etc. are added to prepare halogen-free, low-smoke, ultra-thin organic-inorganic composite fireproof coatings. When the various components of the coating act synergistically, expand and foam to isolate oxygen and have good temperature resistance and heat insulation, it can delay the speed of heat transfer to the protected substrate and prevent the rapid spread of flames. The water-based fireproof coating or solvent-based fireproof coating prepared by the invention has a controllable coating thickness of 0.2-2mm, a fire resistance limit of 30-200min, and the coating formula does not contain halogen compounds, and the coating has excellent heat resistance and flame retardancy , Fireproof performance, anti-corrosion performance, ultra-thin coating thickness, less smoke generation, high foaming strength, easy brushing, less brushing times, etc.

Description

technical field [0001] The invention relates to the fields of chemical industry, fire protection and anticorrosion, and relates to a halogen-free, low-smoke, ultra-thin organic-inorganic composite fireproof coating and a preparation method thereof. Background technique [0002] There are many types of fire-resistant coatings for steel structures, which can be divided into water-based, solvent-based and powder-based according to their material forms; organic-type, inorganic-type and organic-inorganic-type according to the type of resin; according to the fire prevention mechanism, they can be Divided into heat insulation type, expansion type and non-expansion type, according to the thickness of the coating, it is divided into thick type, thin type and ultra-thin type. The ultra-thin steel structure fireproof coating is mainly composed of base resin, char-forming agent, foaming agent, catalyst, etc. Isolate oxygen and have good heat insulation performance, which can delay the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D163/00C09D161/24C09D183/04C09D167/00C09D5/18
Inventor 武利民游波彭勃邢文涛马晓华杨海华
Owner FUDAN UNIV
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