A kind of fireproof coating and preparation method thereof

A technology of fire-resistant coatings and raw materials, applied in fire-resistant coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as property loss, application restrictions, and endangering the lives of the people, and achieve enhanced flame-retardant effects and thermal stability The effect of good and excellent physical and mechanical properties

Active Publication Date: 2020-09-11
广东鑫皇冠新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the LOI of this type of polymer is relatively low, it is easy to be ignited by gaseous substances in the air, and a large amount of smoke is released during the combustion process, which not only causes serious property losses, but also endangers the lives of the people, making it The application in some special fields is subject to certain restrictions

Method used

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  • A kind of fireproof coating and preparation method thereof
  • A kind of fireproof coating and preparation method thereof
  • A kind of fireproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The invention provides a kind of fireproof coating, and by weight percentage, described coating comprises following raw material:

[0023]

[0024] The raw materials for the preparation of the urethane acrylate prepolymer include isocyanate, acrylate monomers, polymerization inhibitors, and catalysts; under the conditions of nitrogen protection and stirring, the isocyanate and the catalyst are mixed uniformly, and the temperature is raised to 45-55°C, keep warm for 1.5-2h, then raise the temperature to 65-75°C, add a polymerization inhibitor to the mixture after reaching the corresponding temperature, stir well and add the acrylate monomer to the mixture dropwise, controlled at 1- The dropwise addition is completed within 1.5 hours, stirred evenly and kept warm for 2.5-3 hours, and then the temperature of the reaction system is lowered to room temperature to obtain the polyurethane acrylate prepolymer, wherein the isophorone diisocyanate and / or toluene Diisocyanate; ...

Embodiment 2

[0035] On the basis of embodiment 1, present embodiment 2 is as a preferred embodiment of the present invention, a kind of fireproof coating, by weight percentage, comprises following raw material:

[0036]

[0037] Wherein, the molar ratio of the said propioloyl chloride to the pentabromophenol is 3:1, the molar ratio of the bromine-free phenol acrylic acid ester to the bromine elemental substance in the bromine water is 2:3, and the ammonium polyphosphate , red phosphorus and aluminum hydroxide are 2:3:3.5, and the preparation method of the fireproof coating is the same as in Example 1.

Embodiment 3

[0039] On the basis of embodiment 1, present embodiment 3 is as a preferred embodiment of the present invention, a kind of fireproof coating, by weight percentage, comprises following raw material:

[0040]

[0041] Wherein, the molar ratio of the propioloyl chloride to the pentabromophenol is 3:2, the molar ratio of the bromine-free phenol acrylic acid ester to the bromine element in the bromine water is 1:2, and the ammonium polyphosphate, red The weight percent of phosphorus and aluminum hydroxide is 1:2:2, and the preparation method of described fireproof coating is the same as embodiment 1.

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Abstract

The invention discloses a fireproof coating and a preparation method thereof. The coating comprises the following raw materials in percentage by weight: 25-45 parts of a polyurethane-acrylate prepolymer, 10-30 parts of a flame retardant I, 6-11 parts of a flame retardant II, 0.5-1.5 parts of an initiator, 6-14 parts of pigment and filler, 2-4 parts of a dispersing agent, 1.5-3.5 parts of a defoaming agent and 5-35 parts of a solvent. According to the invention, the reactive flame retardant I and the additive-type flame retardant II are added into matrix resin, the flame retardant I and the polyurethane-acrylate prepolymer form a completely compatible whole, and the fireproof effect of the prepared fireproof coating is further improved through the match of the additive-type flame retardantII. Meanwhile, the fireproof coating also has the advantages of excellent physical and mechanical properties, high adhesive force on base materials, and good weather resistance.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a fireproof coating and a preparation method thereof. Background technique [0002] Fire retardant paint is to brush the paint on the surface of flammable materials, which can usually play a certain decorative role. Once a fire occurs, it can slow down the speed of flame spread and prevent burning within a certain period of time, so as to protect the substrate and make people burn again. Sufficient time to leave the fire and organize rescue purposes. The fire prevention principle of fire retardant coatings can be roughly summarized into the following five points: (1) The fire retardant coating itself is flame retardant or non-combustible, so that the protected substrate is not directly in contact with the air, delaying the ignition of objects and reducing the burning speed; (2) In addition to being flame retardant or non-combustible, the fire retardant coating also has a low ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D5/18
CPCC08K2003/026C08K2003/2227C08K2003/323C09D5/18C09D175/14C08K3/32C08K3/02C08K3/22
Inventor 谭贺洵汪洋曾志伟
Owner 广东鑫皇冠新材料有限公司
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