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Ultrathin dry powder steel structure fireproof paint

A technology for fire retardant coatings and steel structures, applied in the field of coatings, can solve the problems of lack of radiation protection, and achieve the effects of improving mechanical strength, increasing distance, and good flame retardant performance

Active Publication Date: 2016-11-16
JIANGXI LONGZHENG SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the existing water-based ultra-thin fireproof coatings for steel structures do not have the function of radiation protection, so it is difficult to use them in nuclear buildings.

Method used

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  • Ultrathin dry powder steel structure fireproof paint

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] F1: polymer modified graphene oxide, prepared by the following method:

[0041] (1) Synthesis of NTDA-terminated polypyrrolene prepolymer

[0042] In a 100mL dry three-necked flask, add 10mmol of 3,3'-diaminobenzidine DAB, 11mmol of 1,4,5,8-naphthalene tetracarboxylic anhydride NTDA, 22 mmol of benzoic acid, 3mL of isoquinoline and 40mL m-cresol, nitrogen protection and magnetic stirring; after 2 hours, heat up to 85°C for 6h, 190°C for 21h, after the reaction, cool down to 70°C and quickly pour it into 150mL methanol to obtain a large amount of solid precipitation; wash the mixture repeatedly with methanol After the product was produced, the polymer was collected by suction filtration, and dried in a vacuum oven at 160°C for 20 h for use;

[0043] (2) Synthesis of amino-terminated sulfonated polyimide prepolymer

[0044] In a 100 mL dry three-necked flask, add 1.6 mmol 2,2'-bis(4-sulfophenoxy)biphenyldiamine, 12.5 mL m-creso1 and 0.8 mL triethylamine in sequence, an...

Embodiment 1

[0067] In parts by weight, add 30 parts of A1, 7 parts of B1, 10 parts of C1, 13 parts of D1, 9 parts of E1, 6 parts of F1, 8 parts of G1, 7 parts of H1 and 0.06 parts of I1 into the mixer and mix well for 10 minutes , and the output is dry powder coating. According to the weight ratio, mix the powder and water according to the ratio of 1:0.5, and then coat it on the steel structure to complete the construction.

Embodiment 2

[0069] In parts by weight, add 30 parts of A1, 7 parts of B1, 10 parts of C1, 13 parts of D1, 9 parts of E1, 6 parts of F2, 8 parts of G1, 7 parts of H1 and 0.06 parts of I1 into the mixer and mix for 10 minutes , and the output is dry powder coating. According to the weight ratio, mix the powder and water according to the ratio of 1:0.5, and then coat it on the steel structure to complete the construction.

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Abstract

The invention discloses an ultrathin dry powder steel structure fireproof paint. The fireproof paint comprises the following components in proportion by weight: white cement, diatomite, calcined kaolin, hydrophilic silica, polyoxyethylene polyoxypropanolamine ether, polymer-modified oxidized graphene, sulfonated polybenzimidazole modified mesoporous silica, KH-560 and aeolian sand. The ultrathin dry powder steel structure fireproof paint has the advantages of excellent flame resistance, strong bonding strength, good wear resistance, excellent weatherability and water resistance, good ray proof performance, smooth and fine surface layer of the paint, and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to an ultra-thin dry powder fireproof coating for steel structures. Background technique [0002] With the construction and development of large and medium-sized cities, steel structures have become a very important building application material, and are used in standard factory buildings, large stadiums, airports, bridges, three-dimensional garages and nuclear buildings. However, the critical temperature of steel is 540°C, and its fire resistance is far inferior to that of brick-concrete structures. At this temperature, its bearing capacity will be reduced by about half. In a general fire, this temperature can be reached in about 15 minutes, leading to the collapse of the building. This characteristic determines that corresponding fire prevention measures must be taken for steel structure buildings. Usually, fire retardant coatings are painted on the surface of steel structures t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C08G81/00C08G73/10C08G73/06C04B20/10C04B14/02C04B14/06C04B14/08C04B14/10C04B24/32C04B111/28
CPCC04B20/1037C04B28/04C04B2111/00525C04B2111/28C08G73/0677C08G73/1067C08G81/00C04B14/08C04B14/106C04B14/06C04B24/32C04B14/024C04B14/068
Inventor 容七英
Owner JIANGXI LONGZHENG SCI & TECH DEV
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