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Ultraviolet light solidfication water polyurethane acrylate paint resin and its preparation method

A technology of polyurethane acrylate and ultraviolet light, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of short storage stability period, slow photocuring speed, poor water solubility, etc., and achieve good molecular structure control and mature production technology Stable and stable effect

Inactive Publication Date: 2008-10-08
SHANTOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bayer's product BAYHYDROL UVVP LS 2348 (a UV-curable waterborne polyurethane acrylate coating resin) has disadvantages such as poor water solubility (a water dispersion), slow photocuring speed, and short storage stability period.

Method used

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  • Ultraviolet light solidfication water polyurethane acrylate paint resin and its preparation method
  • Ultraviolet light solidfication water polyurethane acrylate paint resin and its preparation method
  • Ultraviolet light solidfication water polyurethane acrylate paint resin and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare UV-curable waterborne polyurethane acrylate coating resin as follows:

[0033] Equipped with raw materials:

[0034]

[0035] The polymerization inhibitor (2,2,6,6-tetramethylpiperidinol-1-nitroxyl radical) is 0.001% of the total weight of the above raw materials, and an appropriate amount of acetone, water and dimethylformamide are also provided;

[0036] The molecular weight of polyethylene glycol is about 400, the carboxyl content is about 5%, and the double bond content is about 1%. The molar ratio is as follows: 2,4-toluene diisocyanate: polyethylene glycol: dimethylol propionic acid: 1 , 4-butanediol: hydroxyethyl methacrylate: triethylamine is about 3.6: 1.0: 1.7: 0.8: 0.6: 1.7;

[0037] Synthesis of polyurethane prepolymer I: First, add 2,4-toluene diisocyanate into the reaction kettle (reaction vessel) from the vacuum feeding device, and raise the temperature to 80-90°C; then transfer it from the liquid feeding tank to the reaction kettle while stirri...

Embodiment 2

[0046] Raw materials were prepared according to the following proportions, and then the UV-curable water-based polyurethane acrylate coating resin was prepared according to the same steps as in Example 1.

[0047] Equipped with raw materials:

[0048]

[0049]

[0050] The polymerization inhibitor (2,2,6,6-tetramethylpiperidinol-1-nitroxyl radical) is 0.001% of the total weight of the above raw materials, and an appropriate amount of acetone, water and dimethylformamide are also provided;

[0051] The molecular weight of polyethylene glycol is about 600, the carboxyl content is about 3%, and the double bond content is about 1%. The molar ratio is as follows: toluene diisocyanate 80 / 20: polyethylene glycol: dimethylol propionic acid: 1, 3-Butanediol: hydroxyethyl methacrylate: triethylamine is about 3.6: 1.0: 1.0: 1.25: 0.7: 1.0.

[0052] The general structural formula of the UV-curable water-based polyurethane acrylate paint resin that is made is:

[0053]

[0054] ...

Embodiment 3

[0057] Raw materials were prepared according to the following proportions, and then the UV-curable water-based polyurethane acrylate coating resin was prepared according to the same steps as in Example 1.

[0058] Equipped with raw materials:

[0059]

[0060]

[0061] The polymerization inhibitor (2,2,6,6-tetramethylpiperidinol-1-nitroxyl radical) is 0.002% of the total weight of the above raw materials, and an appropriate amount of acetone, water and dimethylformamide are also provided;

[0062] The molecular weight of polyethylene glycol is about 1000, the carboxyl content is about 3%, and the double bond content is about 3%. The molar ratio is as follows: 2,4-toluene diisocyanate: polyethylene glycol: dimethylol propionic acid: 1 , 4-butanediol: hydroxyethyl methacrylate: triethylamine is about 3.6: 1.0: 1.0: 0.5: 2.4: 1.0;

[0063] The general structural formula of the UV-curable water-based polyurethane acrylate paint resin that is made is:

[0064]

[0065] w...

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Abstract

The invention relates to an ultraviolet light solidified water urethane acrylate coating resin. It is mainly made up of aromatic diisocyanate, polyethylene glycol, polyhydroxy-carboxylic acid, dihydric alcohol, hydroxyethyl methacrylate ethyl ester, and tri-ethylamine. It is prepared by adding the above materials orderly. It has the advantages of good water solubility, pliability, and stability.

Description

technical field [0001] The invention relates to an ultraviolet light curing waterborne polyurethane acrylate coating resin and a preparation method of the coating resin. Background technique [0002] In the application field of coatings, because polyurethane resin has excellent chemical properties and relatively comprehensive mechanical and physical properties, its coating film has good wear resistance and chemical resistance after curing, and has high hardness and good elasticity, so it is often used in Metal anticorrosion, automobile coating, aircraft skin, floor paint, road marking paint, etc. However, most polyurethane coatings contain more organic solvents and a certain amount of free isocyanate, thus affecting the environment and people's health during construction and application. Water-based polyurethane uses water as the dispersion medium. Compared with solvent-based polyurethane, it has the advantages of non-combustibility, low odor, non-toxic, non-polluting, ener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C08G18/48C08G18/76C08G18/10
Inventor 刘晓暄吴光国段伦永李源培陈妹妮陈松青
Owner SHANTOU UNIV
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