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Fire resistant coating for composite steel structure and preparation method thereof

A technology for fire-resistant coatings and composite steels, applied in fire-resistant coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of low bonding strength and easy cracking, improve heat resistance and fire resistance, and reduce smoke. The effect of prolonging the fire resistance limit time

Inactive Publication Date: 2012-02-08
江苏海云花新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also studies using inorganic resin as the main binder of the fire retardant coating to improve the strength of the coating, but the fire retardant coating prepared by using inorganic resin as the binder is easy to crack at high temperature, and the bonding strength is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Organic-inorganic nano-hybrid resin formula 1

[0061] Composition Amount (g)

[0062] phosphoric acid 2

[0063] Citric acid 4

[0064] 3-Glycidyl ether methoxytrimethoxysilane 19

[0065] Propyltrimethoxysilane 36

[0066] ethanol 9

[0067] Isopropanol 8

[0068]water 21

[0069] Ethyl silicate 4

[0070] In a reactor equipped with a stirrer, a thermometer, a condenser, and a dropping funnel, add 19 grams of 3-glycidyl ether methoxytrimethoxysilane, 36 grams of propyltrimethoxysilane, 4 grams of ethyl silicate Esters, 9 grams of ethanol, controlled temperature 15-38 ° C, 1000rpm stirring for 9 minutes, 8 grams of isopropanol, 21 grams of water, 2 grams of phosphoric acid, 4 grams of citric acid, mixed evenly and placed in the dropping funnel, at 200 Under the rotating speed of -400rpm, the dropwise addition is completed i...

Embodiment 2

[0072] Organic-inorganic nano-hybrid resin formula 2

[0073] Composition Amount (g)

[0074] Oxalic acid 3

[0075] Phenylepoxydiethoxysilane 21

[0076] n-Hexadecyltriethoxysilane 33

[0077] Butyl acetate 38

[0078] water 4

[0079] Diisopropyl di(acetylacetonate)titanate 0.75

[0080] Aluminum acetylacetonate 0.75

[0081] The preparation method is the same as in Example 1.

Embodiment 3

[0083] Organic-inorganic nano-hybrid resin formula 3

[0084] Composition Amount (g)

[0085] Acetic acid 1

[0086] Phytic acid 8

[0087] Silmethoxy-terminated polydimethylsiloxane 19

[0088] γ-Piperazinylpropylmethyldimethoxysilane 16

[0089] Methyltrimethoxysilane 9

[0090] Methyl amyl ketone 18

[0091] Acetone 19

[0092] water 6

[0093] Propyl silicate 3

[0094] n-propoxyzirconate 2.5

[0095] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a fire resistant coating for a composite steel structure and a preparation method thereof. The fire resistant coating comprises the following ingredients: organic-inorganic nano hybridized resin, organic resin, ceramic filling material, foaming agent, carbon forming agent, catalyst and ferric permanganate. The fire resistant coating has the advantages of simple and convenient painting, excellent fireproof performance, little smoke generation, large foaming intensity and the like. Generally, the coating is used for brushing 3-5 times, the thickness is controlled to be 0.3-1.8 mm, and the duration of fire resistance can reach to 30-240 min.

Description

technical field [0001] The invention belongs to the field of fire prevention of chemical steel structures, and in particular relates to a fireproof coating for composite steel structures and a preparation method thereof. [0002] Background technique [0003] At present, ultra-thin fireproof coatings for steel structures are mainly composed of base resin, char-forming agent, foaming agent, catalyst, etc., which belong to intumescent fireproof coatings. Due to the synergy between the components when exposed to fire, they expand and foam to form a foam layer. Not only can it isolate oxygen, but also has good heat insulation performance, which can delay the speed of heat transfer to the protected substrate and prevent the rapid spread of flames; in addition, the process of coating expansion to form a foam insulation layer is an endothermic reaction, making the system The temperature is lowered, so its flame retardant and fireproof effect is remarkable. The expansion and foami...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D161/20C09D163/00C09D183/00C09D167/00C09D161/02C09D167/08C09D183/04C09D7/12C09D5/18
Inventor 蒋锡琴蒋耀明
Owner 江苏海云花新材料有限公司
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