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Polyurethane fireproof coating and preparation method thereof

A fire-resistant coating, polyurethane technology, used in polyurea/polyurethane coatings, coatings, fire-retardant coatings, etc., can solve the problems of poor fire resistance and weak mechanical properties of polyurethane coatings, and improve corrosion resistance and mechanical properties. Enhanced toughness, excellent impact resistance and low temperature resistance

Inactive Publication Date: 2019-09-10
阜阳市金亮涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the existing polyurethane coatings usually have the defects of poor fire resistance and weak mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A polyurethane refractory coating, the coating is made of the following raw materials in parts by weight: 70 parts of polyurethane, 30 parts of epoxy resin, 9 parts of dibutyltin dilaurate, 10 parts of polyacrylate, 4 parts of potassium persulfate powder, 5 parts of acrylic acid, 7 parts of attapulgite, 0.5 part of silane coupling agent, 10 parts of toluene dicyanate, 500 ml of absolute ethanol, and appropriate amount of distilled water.

[0023] The preparation method of this coating comprises the following steps:

[0024] (1) Add polyurethane and one-third of the mass of epoxy resin into a dry four-neck flask equipped with a condenser, agitator, and thermometer, heat to 80°C, vacuum dehydrate for 3.5 hours, and add toluene dicyanate In the four-necked flask, nitrogen protection, stirring and temperature adjustment to 90 ° C, dibutyltin dilaurate was added during the stirring process, and reacted for 4 hours, and the obtained material was stored at a low temperature of...

Embodiment 2

[0029] A polyurethane refractory coating, the coating is made of the following raw materials in parts by weight: 55 parts of polyurethane, 40 parts of epoxy resin, 4 parts of dibutyltin dilaurate, 15 parts of polyacrylate, 1 part of potassium persulfate powder, 12 parts of acrylic acid, 3 parts of attapulgite, 2.5 parts of silane coupling agent, 4 parts of toluene dicyanate, 500 ml of absolute ethanol, and appropriate amount of distilled water.

[0030] The preparation method of this coating comprises the following steps:

[0031] (1) Add polyurethane and one-third of the mass of epoxy resin into a dry four-necked flask equipped with a condenser, agitator, and thermometer, heat to 90°C, vacuumize and dehydrate for 4 hours, and add tolylene dicyanate In the four-necked flask, nitrogen protection, stirring and temperature adjustment to 85 ° C, adding dibutyltin dilaurate during the stirring process, reacting for 3 hours, and storing the obtained material at a low temperature of ...

Embodiment 3

[0036] A polyurethane refractory coating, the coating is made of the following raw materials in parts by weight: 60 parts of polyurethane, 35 parts of epoxy resin, 6 parts of dibutyltin dilaurate, 14 parts of polyacrylate, 2 parts of potassium persulfate powder, 10 parts of acrylic acid, 5 parts of attapulgite, 2 parts of silane coupling agent, 8 parts of toluene dicyanate, 500 ml of absolute ethanol, and appropriate amount of distilled water.

[0037] The preparation method of this coating comprises the following steps:

[0038] (1) Add polyurethane and one-third of the mass of epoxy resin into a dry four-neck flask equipped with a condenser, agitator, and thermometer, heat to 80°C, vacuumize and dehydrate for 4 hours, and add tolylene dicyanate In the four-necked flask, nitrogen protection, stirring and temperature adjustment to 85 ° C, dibutyltin dilaurate was added during the stirring process, reacted for 4 hours, the obtained material was stored at a low temperature of 0 ...

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PUM

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Abstract

The invention relates to the technical field of coatings, and in particular relates to a polyurethane fireproof coating and a preparation method thereof. The coating is prepared from the following rawmaterials, in parts by weight: 55-70 parts of polyurethane, 30-40 parts of epoxy resin, 4-9 parts of dibutyltin dilaurate, 10-15 parts of polyacrylate, 1-4 parts of potassium persulfate powder, 5-12parts of acrylic acid, 3-7 parts of attapulgite, 0.5-2.5 parts of a silane coupling agent, 4-10 parts of toluene dicyanate, 500 ml of anhydrous ethanol, and an appropriate amount of distilled water. The technical solution provided by the invention can effectively compensate for the defects of poor fire resistance and weak mechanical properties of a current polyurethane coating.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a polyurethane refractory coating and a preparation method thereof. Background technique [0002] The full name of polyurethane is polyurethane, which is a general term for macromolecular compounds containing repeated carbamate groups on the main chain. It is formed by addition polymerization of organic diisocyanate or polyisocyanate and dihydroxy or polyhydroxy compound. In addition to carbamate, polyurethane macromolecules can also contain ether, ester, urea, biuret, allophanate and other groups. Polyurethane material has a wide range of uses and can replace rubber, plastic, nylon, etc. It is used in airports, hotels, building materials, automobile factories, coal mines, cement factories, high-end apartments, villas, landscaping, colored stone art, parks, etc. [0003] The coating is a solid continuous film obtained by one application of the paint. Generally, the coating obt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D163/00C09D133/04C09D5/18C09D5/08C09D7/62
CPCC08L2205/035C08L2205/04C09D5/08C09D5/18C09D175/04C09D7/62C08L63/00C08L33/04C08K9/06C08K3/34
Inventor 闫金亮沃顺财
Owner 阜阳市金亮涂料有限公司
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