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High-temperature-resistant anticorrosion waterborne polyurethane adhesive and preparation method thereof

A water-based polyurethane and adhesive technology, applied in polyurea/polyurethane adhesives, adhesives, non-polymer adhesive additives, etc., can solve poor waterproof performance, low bonding strength, stability, wear resistance and flexibility Poor resistance and other problems, to achieve the effect of high bonding strength, good waterproof performance, and good flexibility

Inactive Publication Date: 2019-10-08
SHANTOU XINYUAN CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many types of existing water-based polyurethane adhesives, but most water-based polyurethane adhesives do not have high-strength high-temperature and corrosion-resistant properties, low bonding strength, poor waterproof performance, and poor overall stability, wear resistance and flexibility.

Method used

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  • High-temperature-resistant anticorrosion waterborne polyurethane adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In the present embodiment, the preparation method of the high temperature and corrosion resistant water-based polyurethane adhesive comprises the following steps:

[0024] (1) Prepare the following raw materials by weight: 25 parts of isophorone diisocyanate, 40 parts of polytetrahydrofuran, 2 parts of 2,2-dimethylolpropionic acid, 0.05 parts of catalyst (both stannous octoate), 5 parts of N-methylpyrrolidone, 2 parts of potassium hydroxide, 110 parts of water, 0.5 parts of isophorone diamine, 1.3 parts of flame retardant (both tributyl phosphate), 3.2 parts of nano-montmorillonite (nano-montmorillonite The interlayer spacing of soil removal is 1.96nm), 2.3 parts of silane coupling agent (both are γ-aminopropyltriethoxysilane), 6.5 parts of fluorine-containing oligomer diol (both are dodecafluorodiol );

[0025] (2) Potassium hydroxide is dissolved in water to obtain an aqueous potassium hydroxide solution, which is set aside;

[0026] (3) Add polytetrahydrofuran into...

Embodiment 2

[0032] In the present embodiment, the preparation method of the high temperature and corrosion resistant water-based polyurethane adhesive comprises the following steps:

[0033] (1) By weight, the following raw materials are equipped: 30 parts of isophorone diisocyanate, 45 parts of polytetrahydrofuran, 5 parts of 2,2-dimethylolpropionic acid, 0.1 part of catalyst (both dibutyltin dilaurate ), 10 parts of N-methylpyrrolidone, 2.2 parts of potassium hydroxide, 120 parts of water, 1 part of isophorone diamine, 1.5 parts of flame retardant (both pentabromoethylbenzene), 3.3 parts of nano-montmorillonite (The interlayer spacing of nano-montmorillonite is 1.96nm), 2.5 parts of silane coupling agent (both are γ-aminopropyltriethoxysilane), 7 parts of fluorine-containing oligomer diols (both are dodecafluoro diol);

[0034] (2) Potassium hydroxide is dissolved in water to obtain an aqueous potassium hydroxide solution, which is set aside;

[0035] (3) Add polytetrahydrofuran into ...

Embodiment 3

[0041] In the present embodiment, the preparation method of the high temperature and corrosion resistant water-based polyurethane adhesive comprises the following steps:

[0042](1) Prepare the following raw materials by weight: 35 parts of isophorone diisocyanate, 50 parts of polytetrahydrofuran, 8 parts of 2,2-dimethylolpropionic acid, 0.15 parts of catalyst (both triethylenediamine) , 15 parts of N-methylpyrrolidone, 2.4 parts of potassium hydroxide, 130 parts of water, 1.5 parts of isophorone diamine, 1.8 parts of flame retardant (both sodium tetraborate), 3.5 parts of nano-montmorillonite (nano-montmorillonite The interlayer spacing of soil removal is 1.96nm), 2.8 parts of silane coupling agent (both are γ-aminopropyltriethoxysilane), 7.8 parts of fluorine-containing oligomer diol (both are dodecafluorodiol );

[0043] (2) Potassium hydroxide is dissolved in water to obtain an aqueous potassium hydroxide solution, which is set aside;

[0044] (3) Add polytetrahydrofuran...

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Abstract

A high-temperature-resistant anticorrosion waterborne polyurethane adhesive is characterized by being made from, by weight, 25-35 parts of isophorone diisocyanate, 40-50 parts of polytetrahydrofuran,2-8 parts of 2,2-bis(hydroxymethyl)propionic acid, 0.05-0.15 part of a catalyst, 5-15 parts of N-methylpyrrolidinone, 2-2.4 parts of potassium hydroxide, 110-130 parts of water, 0.5-1.5 parts of isophorone diamine, 1.3-1.8 parts of a flame retardant, 3.2-3.5 parts of nano-montmorillonite, 2.3-2.8 parts of a silane coupling agent, and 6.5-7.8 parts of fluorine-bearing oligomeric diol. The inventionalso provides a preparation method of the high-temperature-resistant anticorrosion waterborne polyurethane adhesive. The high-temperature-resistant anticorrosion waterborne polyurethane adhesive hasa low quantity of a solvent and is suitable for food packaging bags; a film layer of one packaging bag is pasted to a paper layer through the high-temperature-resistant anticorrosion waterborne polyurethane adhesive, the cost is saved, no toxicity is caused, and good environmental friendliness is present; the high-temperature-resistant anticorrosion waterborne polyurethane adhesive has the good properties of resistance to low and high temperatures, corrosion resistance, good flexibility, high adhesive strength, and good waterproof property.

Description

technical field [0001] The invention relates to an adhesive, in particular to a high-temperature-resistant and corrosion-resistant water-based polyurethane adhesive, and a preparation method of the water-based polyurethane adhesive. Background technique [0002] Water-based polyurethane is a new type of polyurethane system that uses water instead of organic solvents as the dispersion medium, also known as water-dispersed polyurethane, water-based polyurethane or water-based polyurethane. Water-based polyurethane uses water as a solvent, which has the advantages of no pollution, safety and reliability, excellent mechanical properties, good compatibility, and easy modification. Waterborne polyurethane can be widely used in coatings, adhesives, fabric coating and finishing agents, leather finishing agents, paper surface treatment agents and fiber surface treatment agents. [0003] Since the solvent of solvent-based polyurethane is organic and volatile, it not only pollutes the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J11/04C09J11/06C08G18/75C08G18/66C08G18/32C08G18/34C08G18/38
CPCC08G18/3234C08G18/348C08G18/3812C08G18/4854C08G18/6685C08G18/6692C08G18/755C08K2201/011C09J11/04C09J11/06C09J175/08C08K3/346C08K5/544
Inventor 谢进标徐宁陈利杰孔花陈长源
Owner SHANTOU XINYUAN CHEM TECH CO LTD
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