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Bromine carbon polyurethane steel structure fireproof coating and preparation method thereof

A bromocarbon polyurethane and fire-retardant coating technology, applied in fire-resistant coatings and other directions, can solve the problems of environmental effect migration and failure, inability to achieve flame retardant effect, etc. Effect

Inactive Publication Date: 2015-12-02
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Patent CN85107788A proposes a foaming fireproof coating, which is characterized in that inorganic and organic materials are compounded, and the fireproof foaming layer has good heat insulation and high mechanical strength. During the service period of the coating, it is susceptible to environmental influence and migration failure, and cannot achieve long-term flame retardant effect

Method used

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  • Bromine carbon polyurethane steel structure fireproof coating and preparation method thereof
  • Bromine carbon polyurethane steel structure fireproof coating and preparation method thereof
  • Bromine carbon polyurethane steel structure fireproof coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Pre-disperse and grind 35g of modified brominated epoxy resin, 0.17g of dimethyl silicone oil, 0.26g of triethylenediamine, 0.4g of dibutyltin dilaurate, 20g of intumescent flame retardant, and 4.27g of antimony trioxide, as A Components, modified TDI is used as component B, add 25.6g, compound component A and component B, and the fire resistance time of polyurethane fireproof coating is 60min.

Embodiment 2

[0030] Pre-disperse and grind 28g of modified brominated epoxy resin, 0.14g of dimethyl silicone oil, 0.20g of triethylenediamine, 0.34g of dibutyltin dilaurate, 10g of intumescent flame retardant, and 3.41g of antimony trioxide, as A Components, modified TDI is used as component B, add 19.8g, and compound component A and component B to obtain a polyurethane fireproof coating with a fire resistance time of 70 minutes.

Embodiment 3

[0032] Pre-disperse and grind 40g of modified brominated epoxy resin, 0.20g of dimethyl silicone oil, 0.30g of triethylenediamine, 0.49g of dibutyltin dilaurate, 24g of intumescent flame retardant, and 3.0g of antimony trioxide, as A Components, modified TDI is used as component B, add 28.3g, and compound components A and B to obtain a polyurethane fireproof coating with a fire resistance time of 64 minutes.

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Abstract

The invention provides a bromine-carbon polyurethane fireproof paint for steel structure and a preparation method thereof. The fireproof paint comprises component A and component B, wherein, the component A comprises a brominated epoxy resin, dimethicone, the catalyst of dibutyltin dilaurate, a fire retardant and auxiliary agents, and the component B is a modified TDI curing agent. The invention also provides the preparation method for the fireproof paint. The fireproof paint provided in the invention has excellent mechanical properties and fireproof performance and is applicable to fire protection of constructional steel structures.

Description

technical field [0001] The invention relates to a steel structure fireproof coating and a preparation method thereof. Background technique [0002] As a new type of building structure in recent years, steel structure has been widely used in construction because of its flexible structure, light weight, high strength, good shock resistance and deformation, short construction period, and easy maintenance. [0003] Although steel is not combustible, it is a non-combustible material, but the thermal conductivity of steel is large, and the thermal conductivity at room temperature is as high as 58.2w / m·k. Significantly lower, the strain increases sharply, resulting in rapid distortion and deformation, resulting in partial or complete collapse of the steel structure, and its good thermal conductivity will accelerate heat transfer at high temperatures. In general, the mechanical strength of steel decreases with increasing temperature. [0004] Therefore, steel structure buildings m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D5/18C08G18/78C08G18/58
Inventor 崔锦峰刘永亮杨保平郭军红周应萍李延华马永强吴纯
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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