Multifunctional self-repairing polyurethane reticulate pattern coating and preparation method thereof

A polyurethane coating and self-repairing technology, applied in polyurea/polyurethane coatings, chitin polysaccharide coatings, anti-corrosion coatings, etc., can solve problems such as inability to protect the coating, and achieve the effect of improving repair efficiency and comprehensiveness

Inactive Publication Date: 2019-12-24
无锡新而奇化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the principle used is that the external trigger mechanism triggers the release of the self-healing components from the nanocontainer, the trigger mechanism is only for the external corrosive substances when the pH increases when they contact the coating, and for the acidic exter

Method used

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  • Multifunctional self-repairing polyurethane reticulate pattern coating and preparation method thereof
  • Multifunctional self-repairing polyurethane reticulate pattern coating and preparation method thereof
  • Multifunctional self-repairing polyurethane reticulate pattern coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A multifunctional self-repairing polyurethane textured coating provided in this embodiment is prepared from the following raw materials in parts by weight:

[0052] 30 parts of hexanediol polycarbonate;

[0053] 20 parts of isophorone diisocyanate;

[0054] 5 parts of dimethylolpropionic acid;

[0055] 2 parts of triethylamine;

[0056] 0.5 parts of diethylene glycol;

[0057] 0.2 parts of hydrazine monohydrate;

[0058] 20 parts of nano metformin / 8-hydroxyquinoline-Mg-Cu layered polyethyleneimine;

[0059] 20 parts of cerium molybdate / barium tungstate-NaY zeolite molecular sieve;

[0060] Leveling agent 7 parts;

[0061] 5 parts of pigment.

[0062] Wherein, the preparation method of cerium molybdate / barium tungstate-NaY zeolite molecular sieve comprises the following steps:

[0063] 1. In a condensing environment, dissolve cerium molybdate powder and barium tungstate powder in distilled water to form a 0.3M cerium molybdate solution and a 0.3M barium tungstate...

Embodiment 2

[0081] A multifunctional self-repairing polyurethane textured coating provided in this embodiment is prepared from the following raw materials in parts by weight:

[0082] 35 parts of hexanediol polycarbonate;

[0083] 25 parts of isophorone diisocyanate;

[0084] 8 parts of dimethylolpropionic acid;

[0085] 2.3 parts of triethylamine;

[0086] 0.7 parts of diethylene glycol;

[0087] 0.35 parts of hydrazine monohydrate;

[0088] Nano 1-H-benzotriazole-4-sulfonic acid-Zn-Fe layered polyaniline 22.5 parts;

[0089] Lanthanum vanadate-modified chitosan 22.5 parts;

[0090] 8.5 parts of leveling agent;

[0091] 7.5 parts of pigment.

[0092] Wherein, the preparation method of lanthanum vanadate-modified chitosan comprises the following steps:

[0093] 1. In a condensing environment, dissolve lanthanum vanadate in distilled water to form a metal-inorganic salt solution with a concentration of 0.4M. Immerse 8g of porous material in 160ml of lanthanum vanadate solution, and u...

Embodiment 3

[0111] A multifunctional self-repairing polyurethane textured coating provided in this embodiment is prepared from the following raw materials in parts by weight:

[0112] 40 parts of hexanediol polycarbonate;

[0113] 30 parts of isophorone diisocyanate;

[0114] 10 parts of dimethylolpropionic acid;

[0115] 2.5 parts of triethylamine;

[0116] 1 part of diethylene glycol;

[0117] 0.5 parts of hydrazine monohydrate;

[0118] 25 parts of nanometer 4,4'-methyl bis(cyclohexyl isocyanate)-Zn-Al layered polyvinylpyrrolidone;

[0119] Cadmium borate-modified montmorillonite 25 parts;

[0120] 10 parts of leveling agent;

[0121] 10 parts of pigment.

[0122] Wherein, the preparation method of described cadmium borate-modified montmorillonite comprises the following steps:

[0123] 1. In a condensing environment, dissolve cadmium borate in distilled water to form a cadmium borate solution with a concentration of 0.5M, immerse 10g of porous material in 200ml of cadmium bora...

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Abstract

The invention provides a multifunctional self-repairing polyurethane reticulate pattern coating and a preparation method thereof. The multifunctional self-repairing polyurethane reticulate pattern coating is prepared from the following raw materials in parts by weight: 30 to 40 parts of hexanediol polycarbonate, 20 to 30 parts of isophorone diisocyanate, 5 to 10 parts of dimethylolpropionic acid,2 to 2.5 parts of triethylamine, 0.5 to 1 part of diethylene glycol, 0.2 to 0.5 part of hydrazine monohydrate, 20 to 25 parts of a nano active matter-bimetal layered polymer, 20 to 25 parts of a metalinorganic salt-porous material, 7-10 parts of a leveling agent, and 5-10 parts of a pigment. Two different nano containers are used for respectively packaging two inhibitors aiming at different corrosion triggering mechanisms and protection mechanisms; and moreover, polycarbonate adipate into which a carbonate part is introduced is used as a matrix of the polyurethane coating, and meanwhile, acid-base, microorganism and rainwater residues are resisted, so that the polyurethane coating has the characteristics of good ageing hydrolysis resistance, oil resistance, weather resistance and microorganism decomposition corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of weather-resistant paint production, and in particular relates to a multifunctional self-repairing polyurethane textured paint and a preparation method thereof. Background technique [0002] Corrosion is the reaction in which metal interacts with surrounding media (such as water, air, salt, microorganisms) in the environment, triggers chemical or electrochemical changes, and destroys itself. Metal corrosion is not only manifested in loss of luster and rust in appearance, but also in reduced strength, reduced ductility, and increased resistance. Corrosion has caused a lot of inconvenience to our daily life. Problems such as rusting of iron pans, falling of metal balconies due to corrosion, rupture of metal water pipes due to corrosion, and even leakage of natural gas pipelines due to corrosion all have an impact on our economy and safety. The survey shows that metal corrosion causes direct losses to the U...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D179/02C09D105/08C09D139/06C09D5/10C08G18/44
CPCC08G18/44C08K2003/0812C08K2003/085C08K2003/0856C08K2003/0893C08K2201/011C08K2201/014C08L2205/03C09D5/10C09D5/103C09D5/106C09D175/04C08L79/02C08K13/04C08K7/26C08K3/24C08K5/31C08K5/3437C08K3/08C08L5/08C08K13/02C08K5/42C08L39/06C08K13/06C08K3/38C08K5/29
Inventor 江新水
Owner 无锡新而奇化工科技有限公司
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