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Flame retardant modified polyurethane metallic paint

A metal coating, polyurethane technology, used in polyurea/polyurethane coatings, polyester coatings, fire-retardant coatings, etc., can solve the problems of insufficient wear and tensile properties, impact, fire, etc., and achieve heat resistance and tensile resistance. Enhanced performance, improved lipophilicity, improved coating softening effect

Inactive Publication Date: 2016-04-13
NINGGUO LONGSHI METAL PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if water-based polyurethane is used without flame retardant treatment, it will often become a safety hazard that causes fire.
At the same time, the water-based polyurethane coatings in the prior art have insufficient wear resistance and tensile resistance, which affects actual use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A flame-retardant modified polyurethane metal coating proposed by the present invention, its raw materials include by weight: 90 parts of organophosphorus modified polyurethane, 15 parts of water-based phenolic resin, 5 parts of water-based alkyd resin, and 6 parts of sodium carboxymethyl cellulose , 12 parts of montmorillonite, 30 parts of calcined kaolin, 5 parts of nano-aluminum nitride, 2 parts of melamine phosphate, 15 parts of nano-magnesium hydroxide, 2 parts of defoamer, 2 parts of leveling agent, and 4 parts of pigment.

[0020] Wherein the preparation method of organophosphorus modified polyurethane is as follows: 40 parts by weight of tung oil polyol and 8 parts of N,N-bis(2-hydroxyethyl)aminomethylene phosphonic acid diethyl ester are heated up to 100°C and kept for 3h , vacuum dehydration to obtain material a; after mixing 23 parts of 4,4-dicyclohexylmethane diisocyanate and material a, feed N 2 Protection, heat up to 85°C, keep warm for 2h, then cool down ...

Embodiment 2

[0023] A flame-retardant modified polyurethane metal coating proposed by the present invention, its raw materials include by weight: 100 parts of organophosphorus modified polyurethane, 10 parts of water-based phenolic resin, 10 parts of water-based alkyd resin, and 3 parts of sodium carboxymethyl cellulose , 15 parts of montmorillonite, 20 parts of calcined kaolin, 8 parts of nano-aluminum nitride, 1 part of melamine phosphate, 20 parts of nano-magnesium hydroxide, 1 part of defoamer, 3 parts of leveling agent, and 2 parts of pigment.

[0024] Wherein the preparation method of organophosphorus modified polyurethane is as follows: 50 parts by weight of tung oil polyol and 5 parts of N,N-bis(2-hydroxyethyl)aminomethylene phosphonic acid diethyl ester are heated up to 110°C and kept for 2h , vacuum dehydration to obtain material a; after mixing 28 parts of 4,4-dicyclohexylmethane diisocyanate and material a, feed N 2 Protection, heat up to 75°C, keep warm for 4h, then cool down ...

Embodiment 3

[0027] A flame-retardant modified polyurethane metal coating proposed by the present invention, its raw materials include by weight: 93 parts of organophosphorus modified polyurethane, 14 parts of water-based phenolic resin, 8 parts of water-based alkyd resin, and 5 parts of sodium carboxymethyl cellulose , 13 parts of montmorillonite, 28 parts of calcined kaolin, 6 parts of nano-aluminum nitride, 1.8 parts of melamine phosphate, 18 parts of nano-magnesium hydroxide, 1.5 parts of defoamer, 2.5 parts of leveling agent, and 3 parts of pigment.

[0028] Wherein the preparation method of organophosphorus modified polyurethane is as follows: 48 parts of tung oil polyols and 6 parts of N, N-bis(2-hydroxyethyl) aminomethylene phosphonic acid diethyl ester are heated up to 106 DEG C by weight, and kept for 2.3 h, vacuum dehydration to obtain material a; after mixing 26 parts of 4,4-dicyclohexylmethane diisocyanate and material a, feed N 2 Protection, heat up to 78°C, keep warm for 3.5...

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PUM

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Abstract

The present invention discloses a flame retardant modified polyurethane metallic paint, which comprises raw materials of organic phosphorus-modified polyurethane, water-based phenolic resin, water-based alkyd resin, sodium carboxymethyl cellulose, montmorillonite, calcined kaolin, nanometer nitride aluminum, melamine polyphosphate, nano magnesium hydroxide, a defoamer, a levelling agent and a pigment. The preparation method of the organic phosphorus-modified polyurethane is as follows: heating tung oil polyol and N,N-diethyl bis(2-hydroxyethyl)aminomethylphosphonate, insulating, conducting vacuum dehydration, adding dicyclohexylmethylmethane-4,4'-diisocyanate, introducing N2 protection, heating, insulating, cooling, adding 1,5-pentanediol, dimethylolpropionic acid, pentaerythritol and acetone, and then adding zinc naphthenate, heating, insulating, cooling, dropwise adding a mixed solution containing dimethylethanolamine and triethanolamine, heating, insulating, neutralizing, adding water for emulsified dispersion, and conducting vacuum distillation to obtain organic phosphorus-modified polyurethane. The flame retardant modified polyurethane metallic paint has excellence flame retardant property.

Description

technical field [0001] The invention relates to the technical field of waterproof coatings, in particular to a flame-retardant modified polyurethane metal coating. Background technique [0002] With the rapid development of modern industry, the anti-corrosion of metal surfaces has been paid more and more attention by all walks of life. It is an economical and effective method to use paint to coat anti-corrosion. For industrial and mining enterprises, the huge economic losses caused by metal corrosion are incalculable, accounting for about 15-20% of global steel production. It can be seen how important corrosion protection is. There are many ways to prevent metal corrosion, such as the use of electroplating and cathodic protection, which cause emission pollution and are not conducive to environmental protection; there is also the use of corrosion-resistant alloys, which play an anti-corrosion role, but the project cost is high. It has been proved by practice that the protect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D161/06C09D167/08C09D101/28C09D5/18C09D7/12C08G18/75C08G18/36C08G18/32
CPCC09D175/04C08G18/36C08G18/3889C08G18/758C08K2201/011C08K2201/014C08L2201/02C08L2201/08C08L2205/035C09D5/18C09D7/61C09D7/63C09D7/65
Inventor 周立
Owner NINGGUO LONGSHI METAL PROD CO LTD
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