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Low-smoke indoor steel structure flame-retardant coating

A flame-retardant coating and steel structure technology, applied in fire-resistant coatings, coatings, etc., can solve problems such as short protection time, corrosion of steel structures, and potential safety hazards, and achieve the effects of reducing smoke density, improving flame-retardant performance, and improving performance

Inactive Publication Date: 2016-03-16
青岛唐鹏钢结构工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing fire-resistant and flame-retardant coatings have simple formulas, most of which have defects such as short protection time and corrosion to steel structures, and some fire-resistant and flame-retardant coatings have added some harmful substances, which will produce harmful gases after the combustion process. Security risks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A low-smoke indoor steel structure flame-retardant coating, which is composed of the following raw materials in parts by weight: 63 parts of silicone modified styrene-acrylic emulsion, 6 parts of ammonium polyphosphate, 2 parts of pentaerythritol, 1 part of melamine, and 3 parts of silicon dioxide powder 25 parts of water, 5 parts of ethylene glycol, 6 parts of smoke suppressant, 3 parts of fly ash, 0.2 parts of urea, and 0.5 parts of dibutyltin dilaurate.

Embodiment 2

[0017] A low-smoke indoor steel structure flame-retardant coating, which is composed of the following raw materials in parts by weight: 70 parts of silicone modified styrene-acrylic emulsion, 8 parts of ammonium polyphosphate, 5 parts of pentaerythritol, 2 parts of melamine, and 4 parts of silica powder 27 parts of water, 7 parts of ethylene glycol, 8 parts of smoke suppressant, 4 parts of fly ash, 0.3 parts of dicyandiamide, and 0.7 parts of dibutyltin dilaurate.

Embodiment 3

[0019] A low-smoke indoor steel structure flame-retardant coating, which is composed of the following raw materials in parts by weight: 73 parts of silicone modified styrene-acrylic emulsion, 9 parts of ammonium polyphosphate, 6 parts of pentaerythritol, 3 parts of melamine, and 6 parts of silicon dioxide powder 30 parts of water, 10 parts of ethylene glycol, 10 parts of smoke suppressant, 5 parts of fly ash, 0.5 parts of urea, and 1 part of dibutyltin dilaurate.

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PUM

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Abstract

The invention discloses a low-smoke indoor steels structure flame-retardant coating which is prepared from, by weight, 63-73 parts of organic silicon modified styrene acrylic emulsion, 6-9 parts of ammonium polyphosphate, 2-6 parts of pentaerythritol, 1-3 parts of melamine, 3-6 parts of silicon dioxide powder, 25-30 parts of water, 5-10 parts of ethylene glycol, 6-10 parts of a smoke inhibitor, 3-5 parts of coal ash, 0.2-0.5 part of a foaming agent and 0.5-1 part of a stabilizing agent. The stabilizing agent is dibutyltin dilaurate. The foaming agent is urea or dicyandiamide or the mixture of urea and dicyandiamide. The low-smoke indoor steel structure flame-retardant coating has the good flame-retardant effect, the smoke intensity is low when the coating is combusted, and the flame-retardant coating is safe and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of steel structure protection, and in particular relates to a low-smoke indoor steel structure flame-retardant coating. Background technique [0002] Although steel is not combustible and is a non-combustible material, steel itself has some unavoidable defects in fire prevention as a building material. Steel has a large thermal conductivity, and its thermal conductivity at room temperature is as high as 58.2w / m·k. At about 500°C, its elastic modulus, yield strength and ultimate strength will be significantly reduced, and the strain will increase sharply, resulting in rapid distortion and deformation, resulting in partial or complete collapse of the steel structure. [0003] In order to meet the fire protection requirements, some fire retardant coatings are painted on the surface of the steel structure to protect the coated steel structure to a certain extent. Existing fire-resistant and flame-retardant coatings have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D5/18C09D7/12
Inventor 唐子鹏
Owner 青岛唐鹏钢结构工程有限公司