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Water-based intumescent fire retardant coating for indoor steel structure and preparation method thereof

A kind of technology of fireproof coating and intumescent type, which is applied in the field of water-based intumescent fireproof coating for indoor steel structures and its preparation, can solve the problem of poor adhesion, difficulty in balancing moisture resistance, water resistance and flame retardancy, and poor moisture resistance and water resistance. Good and other questions

Active Publication Date: 2021-06-18
西北永新涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a water-based intumescent fireproof coating for indoor steel structures to solve the problems of poor adhesion, moisture resistance, water resistance and flame retardancy in traditional indoor water-based intumescent fireproof coatings, and moisture-proof Sexuality and poor water resistance

Method used

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  • Water-based intumescent fire retardant coating for indoor steel structure and preparation method thereof
  • Water-based intumescent fire retardant coating for indoor steel structure and preparation method thereof
  • Water-based intumescent fire retardant coating for indoor steel structure and preparation method thereof

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Embodiment 1

[0055]A water-based intumescent fireproof coating for indoor steel structures, comprising the following raw materials in weight percent: 15% film-forming emulsion, 1.2% dispersant, 0.9% thickener, 12% potassium methyl silicate modified pentaerythritol, 11% melamine, 14% ammonium polyphosphate modified by melamine, 12% aluminum hydroxide, 4% glass fiber, 0.6% wetting agent, 0.7% defoamer, 6% pigment (titanium dioxide), and the balance is distilled water.

[0056] Above-mentioned a kind of preparation method that is used for the water-based intumescent type fireproof coating of indoor steel structure, comprises the following steps:

[0057] Step A: add dispersant, wetting agent, and defoamer to distilled water, and stir at 500r / min for 5min;

[0058] Step B: adding glass fiber and stirring at 800r / min for 8min;

[0059] Step C: adding aluminum hydroxide and titanium dioxide and stirring at 1000r / min for 20min;

[0060] Step D: add ammonium polyphosphate, modified pentaerythrit...

Embodiment 2

[0070] A water-based intumescent fireproof coating for indoor steel structures, comprising the following raw materials in weight percentage: 17% film-forming emulsion, 0.9% dispersant, 1.0% thickener, 10% potassium methyl silicate modified pentaerythritol, 11% melamine, 15% ammonium polyphosphate modified by melamine, 13% aluminum hydroxide, 3% glass fiber, 0.5% wetting agent, 0.6% defoamer, 7% pigment (titanium dioxide), and the balance is distilled water.

[0071] Above-mentioned a kind of preparation method that is used for the water-based intumescent type fireproof coating of indoor steel structure, comprises the following steps:

[0072] Step A: add dispersant, wetting agent and defoamer to distilled water and stir at 800r / min for 8min;

[0073] Step B: adding glass fiber and stirring at 1000r / min for 10min;

[0074] Step C: adding aluminum hydroxide and titanium dioxide and stirring at 1200r / min for 25min;

[0075] Step D: add ammonium polyphosphate, modified pentaeryt...

Embodiment 3

[0085] A water-based intumescent fireproof coating for indoor steel structures, comprising the following raw materials in weight percentage: 18% film-forming emulsion, 1.2% dispersant, 0.9% thickener, 9% potassium methyl silicate modified pentaerythritol, 10% melamine, 16% ammonium polyphosphate modified by melamine, 14% aluminum hydroxide, 3% glass fiber, 0.3% wetting agent, 0.8% defoamer, 6% pigment, and the balance is distilled water.

[0086] Above-mentioned a kind of preparation method that is used for the water-based intumescent type fireproof coating of indoor steel structure, comprises the following steps:

[0087] Step A: add dispersant, wetting agent and defoamer to the water and stir at 700r / min for 6min;

[0088] Step B: adding glass fiber and stirring at 900r / min for 9min;

[0089] Step C: adding aluminum hydroxide and titanium dioxide and stirring at 1100r / min for 22min;

[0090] Step D: add ammonium polyphosphate, modified pentaerythritol and melamine and cont...

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Abstract

The invention discloses water-based intumescent fireproof coating for an indoor steel structure and a preparation method thereof, belongs to the field of water-based fireproof coating, and solves the problems that traditional fireproof coating is poor in adhesive force, and moisture resistance, water resistance and flame retardance are difficult to consider at the same time. The coating comprises a film-forming emulsion, a dispersing agent, a thickening agent, potassium methyl silicate modified pentaerythritol, melamine, ammonium polyphosphate, aluminum hydroxide, glass fibers, a wetting agent, a defoaming agent, pigment and distilled water. The preparation method comprises the following steps: adding the dispersing agent, the wetting agent and the defoaming agent into distilled water and stirring; adding the glass fibers and stirring; adding the aluminum hydroxide and pigment and stirring; adding the ammonium polyphosphate, the potassium methyl silicate modified pentaerythritol and the melamine, and stirring; adding the film-forming emulsion and stirring; adding the thickening agent to adjust the viscosity. The coating disclosed by the invention has good adhesive force and excellent water resistance and moisture resistance, the coating is free from layering, foaming and falling off after being resistant to water, the heat insulation efficiency attenuation is less than or equal to 35%, and the fire-resistant time is more than 120 minutes.

Description

technical field [0001] The invention belongs to the field of water-based fireproof coatings, and in particular relates to a water-based expansion type fireproof coating for indoor steel structures and a preparation method thereof. Background technique [0002] Steel structure fireproof coating is a kind of functional coating that is coated on the surface of steel structure to form a fire-resistant and heat-insulating layer to change its surface combustion characteristics, delay the transfer of flame temperature to the steel structure, improve the fire resistance of the steel structure, and delay or even prevent the spread of fire. [0003] According to the fire protection situation and composition, fire retardant coatings can be divided into two categories: intumescent and non-expandable. Intumescent fire retardant coating is currently the most widely used fire retardant coating in China. It is mainly composed of film-forming substances, dehydrating agents, char-forming agen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/04C09D5/18C09D7/61
CPCC09D131/04C09D5/185C09D7/61C09D7/70C08K2003/323C08K2003/2227C08L2201/02C08K13/06C08K5/34922C08K9/06C08K5/053C08K3/32C08K3/22Y02P20/10
Inventor 曾慧崇胡珺清曹辉东马育红雍涛
Owner 西北永新涂料有限公司
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