High-curing-speed low-viscosity polyurethane metal paint

A metal coating, polyurethane technology, used in polyurea/polyurethane coatings, anti-corrosion coatings, fire-retardant coatings, etc., can solve the problems of polyurethane flame retardant, water resistance, heat resistance, low cost, complex process and other problems, and achieve toughness. High, improve water resistance, improve the effect of reactivity

Inactive Publication Date: 2016-03-23
NINGGUO LONGSHI METAL PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Stainless steel or carbon steel tanks or inner walls of pipes are often protected by composite materials, but the process is complicated, the cost is high, and the popularity is low. At present, it is more common to use suitable coatings on the inner wall surface Form a protective coating, which is si

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The present invention proposes a fast-curing and low-viscosity polyurethane metallic paint, whose raw materials include by weight: 75 parts of trimer modified polyurethane, 25 parts of water-based acrylic resin, 5 parts of water-based phenolic resin, 6 parts of fumed silica, silicon 12 parts of algae earth, 12 parts of sepiolite, 5 parts of precipitated barium sulfate, 16 parts of microencapsulated red phosphorus, 3 parts of preservative, 3 parts of defoamer, 3 parts of leveling agent, and 6 parts of pigment.

[0019] The preparation method of trimer modified polyurethane is as follows: by weight, 22 parts of polyethylene glycol and 19 parts of polycarbonate diol are heated up to 82 ° C, kept for 4 hours, and then vacuum dehydrated to obtain the first material; the first material and After mixing 6 parts of N,N-bis(2-hydroxyethyl)aminomethylene phosphonic acid diethyl ester and 6 parts of modified polymerized toluene diisocyanate, pass into N 2 Protection, heating up to...

Embodiment 2

[0022] The present invention proposes a fast-curing and low-viscosity polyurethane metal coating, whose raw materials include by weight: 85 parts of trimer modified polyurethane, 20 parts of water-based acrylic resin, 10 parts of water-based phenolic resin, 3 parts of fumed silica, silicon 15 parts of algae earth, 8 parts of sepiolite, 8 parts of precipitated barium sulfate, 13 parts of microencapsulated red phosphorus, 4 parts of preservative, 2 parts of defoamer, 4 parts of leveling agent, and 5 parts of pigment.

[0023] The preparation method of trimer modified polyurethane is as follows: by weight, 25 parts of polyethylene glycol and 16 parts of polycarbonate diol are heated up to 85 ° C, kept for 3 hours, and then vacuum dehydrated to obtain the first material; the first material and After mixing 8 parts of N,N-bis(2-hydroxyethyl)aminomethylene phosphonic acid diethyl ester and 5 parts of modified polymerized toluene diisocyanate, pass into N 2 Protection, heating up to ...

Embodiment 3

[0026] The present invention proposes a fast-curing and low-viscosity polyurethane metal coating. Its raw materials include by weight: 78 parts of trimer modified polyurethane, 24 parts of water-based acrylic resin, 8 parts of water-based phenolic resin, 5 parts of fumed silica, silicon 13 parts of algae earth, 10 parts of sepiolite, 6 parts of precipitated barium sulfate, 15 parts of microencapsulated red phosphorus, 3.2 parts of preservative, 2.8 parts of defoamer, 3.6 parts of leveling agent, and 5.5 parts of pigment.

[0027] The preparation method of trimer-modified polyurethane is as follows: 23 parts of polyethylene glycol and 18 parts of polycarbonate diol are heated up to 83 DEG C by weight, kept for 3.4 hours, and then vacuum dehydrated to obtain the first material; the first material After mixing with 6.5 parts of N,N-bis(2-hydroxyethyl)aminomethylene phosphonic acid diethyl ester and 5.6 parts of modified polymerized toluene diisocyanate, N 2 For protection, heat u...

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PUM

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Abstract

The invention discloses a high-curing-speed low-viscosity polyurethane metal paint. The high-curing-speed low-viscosity polyurethane metal paint comprises the following raw materials in parts by weight: 75-85 parts of tripolymer modified polyurethane, 20-25 parts of water-based acrylic resin, 5-10 parts of water-based phenolic resin, 3-6 parts of fumed silica, 12-15 parts of kieselguhr, 8-12 parts of sepiolite, 5-8 parts of precipitated barium sulphate, 13-16 parts of micro-capsulated red phosphorus, 3-4 parts of a preservative, 2-3 parts of a defoamer, 3-4 parts of a flatting agent and 5-6 parts of pigments, wherein modified polyurethane is prepared from polycaprolactone diol, polycarbonate diol, N,N-bis(2-hydroxyethyl)amino methylene diethyl phosphite, modified polytoluene diisocynate, diethylene glycol, 2-(hydroxymethyl)half-ester phenylborate, glucose, stannous octoate, bis(2-hydroxyethyl)aniline and N-propyl diethanolamine; modified polytoluene diisocynate is prepared by grafting polymerized polytoluene diisocynate with hydroxy siloxane.

Description

technical field [0001] The invention relates to the technical field of polyurethane coatings, in particular to a fast-curing and low-viscosity polyurethane metal coating. Background technique [0002] Most of the large-scale high-temperature liquid storage tanks or pipelines in my country currently use metal pipes, such as carbon steel and stainless steel. Generally, linings are added to the inner walls of these tanks and pipes or paints are directly painted on the inner walls to improve the high temperature resistance and corrosion resistance of these equipment and prolong their service life. Stainless steel or carbon steel tanks or inner walls of pipes are often protected by composite materials, but the process is complicated, the cost is high, and the popularity is low. At present, it is more common to use suitable coatings on the inner wall surface Form a protective coating, this kind of measure is simple and effective to implement, and the cost of use is low. At prese...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D133/00C09D161/06C09D5/18C09D5/08C09D7/12
Inventor 周立
Owner NINGGUO LONGSHI METAL PROD CO LTD
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