Water super-thin steel structure fire-proof paint and preparation method thereof

A fire retardant coating, ultra-thin technology, applied in the direction of fire retardant coatings, coatings, etc., can solve the problems of increased cost, large amount of flame retardant, and expensive flame retardant.

Inactive Publication Date: 2008-01-09
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention uses a base material mixed with water-based emulsion and modified resin, and the amount of the base material is small, which has a great impact on its weather resistance; the amount of flame retardant in the formula is relatively large, and the price of the flame retardant is relatively high. Expensive, and the amount used is large, so it also increases the cost of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Acrylic emulsion 32.5%, ammonium polyphosphate 15.4%, pentaerythritol 4.8%, melamine 3.2%, expandable graphite 4.8%, aluminum hydroxide 11.8%, defoamer 0.40%, leveling agent 0.28%, dispersant 0.38%, plasticizer Agent 3.0%, coupling agent 0.20%, thickener 0.8%, and finally add water to 100%.

[0038] The preparation method of this embodiment is:

[0039] (1) First, the powdery material is ground by a grinder and passed through a 200-mesh sieve;

[0040] (2) Accurately weigh various materials in sequence according to the formula, first add acrylic acid emulsion, then add ammonium polyphosphate, pentaerythritol, melamine, aluminum hydroxide, then add leveling agent, dispersant, plasticizer, coupling agent, Auxiliaries such as thickening agent and part of the defoamer (accounting for about 1 / 2 of the total amount of the defoamer), the water is added twice, and part of the water is added first to reduce the viscosity of the base material so that the powdered material added af...

Embodiment 2

[0046] Acrylic emulsion 30.1%, ammonium polyphosphate 13.8%, pentaerythritol 9%, melamine 3.5%, expandable graphite 3.2%, aluminum hydroxide 10.3%, defoamer 0.35%, leveling agent 0.25%, dispersant 0.32%, plasticizer Agent 2.8%, coupling agent 0.16%, thickener 1.1%, and finally add water to 100%.

[0047] The preparation method of this embodiment is:

[0048] (1) First, the powdery material is ground by a grinder and passed through a 200-mesh sieve;

[0049] (2) Accurately weigh various materials in sequence according to the formula, first add acrylic acid emulsion, then add ammonium polyphosphate, pentaerythritol, melamine, aluminum hydroxide, then add leveling agent, dispersant, plasticizer, coupling agent, Auxiliaries such as thickener and part of the defoamer (accounting for about 2 / 3 of the total amount of the defoamer), the water is added twice or more times, and part of the water is added first to reduce the viscosity of the base material so that it can be wet enough an...

Embodiment 3

[0055] Acrylic emulsion 26.7%, ammonium polyphosphate 12.5%, pentaerythritol 13.2%, melamine 4.5%, expandable graphite 2.0%, aluminum hydroxide 8.0%, defoamer 0.3%, leveling agent 0.22%, dispersant 0.27%, plasticizer Agent 2.3%, coupling agent 0.12%, thickener 1.0%, and finally add water to 100%.

[0056] The preparation method of this embodiment is:

[0057] (1) First, the powdery material is ground by a grinder and passed through a 200-mesh sieve;

[0058] (2) Accurately weigh various materials in sequence according to the formula, first add acrylic acid emulsion, then add ammonium polyphosphate, pentaerythritol, melamine, aluminum hydroxide, then add leveling agent, dispersant, plasticizer, coupling agent, Auxiliaries such as thickening agent and part of the defoamer (accounting for about 1 / 2 of the total amount of the defoamer), the water is added twice, and part of the water is added first to reduce the viscosity of the base material so that the powdered material added a...

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Abstract

An aqueous fire proofing coating with ultra-thin steel structure and its production are disclosed. The fire proofing coating consists of acrylic acid emulsion, amine poly-phosphate, tetramethylolmethane, melamine, expanding graphite, aluminum hydrate, antifoaming agent, leveling agent, dispersant, plasticizer, coupling agent, thickening agent. The process is carried out by adding amine poly-phosphate, tetramethylolmethane, melamine, aluminum hydrate and partial accessories into ball grinder, agitating, grinding, adding expanding graphite and residual accessories into ball grinder, agitating and filtering to obtain final product. It's cheap, simple and convenient, has better flame retardant performance, short drying time and no environmental pollution.

Description

technical field [0001] The invention relates to a water-based ultra-thin steel structure fireproof coating and a preparation method thereof, belonging to new materials in the coating field of the chemical industry. Background technique [0002] Because steel structure has a series of advantages such as high strength, good toughness, convenient manufacture, fast construction speed and short construction period, it has been more and more widely used in modern construction industry. However, its poor fire resistance has always been a concern of people. Spraying fireproof coatings for steel structures is one of the most economical and reasonable measures for fire protection of steel structures. [0003] The ultra-thin fire retardant coating expands when exposed to fire, with a high expansion rate, and can form a carbonized layer that is ten times or even dozens of times larger. The carbonized foam layer is dense and firm, and the fire resistance limit is 0.5 hours to 3 hours. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/02C09D5/18C09D7/12
Inventor 龚建清何亚东
Owner HUNAN UNIV
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