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 problems such as poor water solubility, short storage stability period, and slow photocuring speed, and achieve good stability and good molecular structure control , Mature and stable production process
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Examples
Embodiment 1
[0032] Prepare UV-curable waterborne polyurethane acrylate coating resin as follows:
[0033] raw material
Dosage (% by weight)
2,4-Toluene diisocyanate
Polyethylene glycol (molecular weight 400)
1,4-Butanediol
41.0
24.8
14.2
4.4
4.9
10.7
[0034] 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;
[0035]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;
...
Embodiment 2
[0045] 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.
[0046] raw material
Dosage (% by weight)
Toluene diisocyanate (80 / 20)
Polyethylene glycol (molecular weight 600)
1,3-Butanediol
38.4
34.9
7.8
7.6
5.4
5.9
[0047] 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;
[0048] 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: dimethy...
Embodiment 3
[0054] 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.
[0055] raw material
Dosage (% by weight)
2,4-Toluene diisocyanate
28.9
Polyethylene glycol (molecular weight 1000)
1,4-Butanediol
43.8
5.9
2.0
14.9
4.5
[0056] 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;
[0057] 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: dime...
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Abstract
Description
Claims
Application Information
- IPC
- C09D175/14; C08G18/48; C08G18/76; C08G18/10
- Inventors
- 刘晓暄; 吴光国