Steel-structure super-thin intumescent fire-retardant coating and preparing method thereof

An intumescent technology for fire-resistant coatings, applied in the direction of fire-resistant coatings, coatings, etc., can solve problems affecting human health, toxicity, and complex formulas, and achieve low cost, low density, and simple process flow

Inactive Publication Date: 2016-04-20
徐冉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are many steel structure fireproof coatings on the market, many of which have complex formulas, high cost, and toxicity, which affects human health

Method used

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  • Steel-structure super-thin intumescent fire-retardant coating and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1 The ultra-thin intumescent fireproof coating for steel structures is prepared from the following main raw materials (20 kg per part): 17 parts of ammonium polyphosphate, 10 parts of melamine, 6 parts of pentaerythritol, 6 parts of vinyl acetate-ethylene copolymer emulsion, 4 parts of thermoplastic acrylic resin, 5 parts of polyvinyl chloride resin, 3 parts of light calcium carbonate, 2.5 parts of methyl cellulose, 18 parts of deionized water, 1 part of thickener, 3.5 parts of dispersant, 0.1 part of defoamer.

[0044] The preparation steps of ultra-thin intumescent fireproof coating for steel structure are as follows:

[0045] (1) Put the light calcium carbonate in an ultrafine pulverizer, grind it mechanically for 20 minutes, take it out, pour it into a mixer, add thermoplastic acrylic resin, stir (stirring speed is 140r / min) for 20 minutes, and heat to 45°C. Insulation treatment for 40 minutes;

[0046] (2) Put ammonium polyphosphate, melamine and pentaeryt...

Embodiment 2

[0051] Example 2 The ultra-thin intumescent fireproof coating for steel structures is prepared from the following main raw materials (10 kg per part): 20 parts of ammonium polyphosphate, 15 parts of melamine, 10 parts of pentaerythritol, 12 parts of vinyl acetate-ethylene copolymer emulsion, 8 parts of thermoplastic acrylic resin, 10 parts of polyvinyl chloride resin, 7 parts of light calcium carbonate, 3.5 parts of methyl cellulose, 26 parts of deionized water, 2 parts of thickener, 5.0 parts of dispersant, and 0.3 parts of defoamer.

[0052] The preparation steps of ultra-thin intumescent fireproof coating for steel structure are as follows:

[0053] (1) Put the light calcium carbonate in an ultrafine pulverizer, grind it mechanically for 30 minutes, take it out, pour it into a mixer, add thermoplastic acrylic resin, stir (stirring speed is 180r / min) for 30 minutes, heat to 50°C, Insulation treatment for 50 minutes;

[0054] (2) Put ammonium polyphosphate, melamine and pent...

Embodiment 3

[0059] Example 3 The ultra-thin intumescent fireproof coating for steel structures is prepared from the following main raw materials (15 kg per part): 18 parts of ammonium polyphosphate, 12 parts of melamine, 7 parts of pentaerythritol, 8 parts of vinyl acetate-ethylene copolymer emulsion, 5 parts of thermoplastic acrylic resin, 7 parts of polyvinyl chloride resin, 4 parts of light calcium carbonate, 2.8 parts of methyl cellulose, 21 parts of deionized water, 1.3 parts of thickener, 4.0 parts of dispersant, and 0.15 parts of defoamer.

[0060] The preparation steps of ultra-thin intumescent fireproof coating for steel structure are as follows:

[0061] (1) Put the light calcium carbonate in an ultrafine pulverizer, grind it mechanically for 23 minutes, take it out, pour it into a mixer, add thermoplastic acrylic resin, stir (stirring speed is 150r / min) for 23 minutes, heat to 47°C, Insulation treatment for 43 minutes;

[0062] (2) Put the ammonium polyphosphate, melamine and ...

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Abstract

The invention discloses a steel-structure super-thin intumescent fire-retardant coating. The steel-structure super-thin intumescent fire-retardant coating is prepared from, by weight, 17-20 parts of ammonium polyphosphate, 10-15 parts of melamine, 6-10 parts of pentaerythritol, 6-12 parts of vinyl acetate-ethylene copolymer emulsion, 4-8 parts of thermoplastic acrylic resin, 5-10 parts of polyvinyl chloride resin, 3-7 parts of light calcium carbonate, 2.5-3.5 parts of methylcellulose, 18-26 parts of deionized water, 1-2 parts of thickening agent, 3.5-5.0 parts of dispersing agent and 0.1-0.3 part of antifoaming agent. According to the steel-structure super-thin intumescent fire-retardant coating, the technological process is simple, construction operation is convenient, total engineering cost is reduced, effective fire-retardant protection of a steel structure is achieved, and a decoration effect and a weather-resistant effect can be simultaneously achieved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an ultra-thin intumescent fireproof coating for steel structures and a preparation method thereof. Background technique [0002] In practical applications, steel can not only increase the load capacity of buildings relatively, but also meet the needs of architectural design aesthetics; it also avoids the defects of concrete and other building materials that cannot be bent and stretched. Therefore, steel is favored by the construction industry. Single-story, multi-story, skyscrapers, factories, warehouses, waiting rooms, waiting halls, etc. are all commonly used in steel. However, as a building material, steel has some unavoidable defects in fire prevention. Its mechanical properties, such as yield point, tensile strength and modulus of elasticity, will drop sharply due to the increase of temperature. The steel structure usually loses its bearing capacity at a temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/04C09D133/00C09D127/06C09D7/12C09D5/18
CPCC09D131/04C08L2201/02C08L2205/035C09D5/18C09D7/61C09D7/63C08L33/00C08L27/06C08K13/02C08K2003/323C08K5/34922C08K5/053C08K2003/265
Inventor 不公告发明人
Owner 徐冉
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