Self-repairing antifogging coating and preparation method thereof
An anti-fog coating and self-repairing technology, which is applied in coatings, antifouling/underwater coatings, chemical instruments and methods, etc., to achieve the effects of strong water absorption capacity, improved service life, and fast water absorption speed
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Embodiment 1
[0035] Example 1: Preparation of self-healing coating with anti-fog function
[0036] First, 0.94 g (6 mmol) of dimethylaminoethyl methacrylate was dissolved in 20 mL of acetone under a nitrogen atmosphere. Next, 0.73 g (6 mmol) of 1,3-propane sultone was completely dissolved in 10 mL of acetone, and the resulting solution was added dropwise to the above dimethylaminoethyl methacrylate solution under stirring. Then, the mixed solution was stirred at room temperature and protected from light for 48 h. Finally, a white precipitate was precipitated using ice acetone, filtered, and vacuum-dried at 30° C. for 6 h. Secondary precipitation was carried out with glacial ether, and the product SBMA was vacuum-dried at 30°C for 24 hours and stored at low temperature.
[0037] 3.375 g (13.5 mmol) of hexafluorobutyl methacrylate, 0.418 g (1.5 mmol) of SBMA, and 76 mg of azobisisobutyronitrile were fully dissolved in 35 mL of dimethyl sulfoxide, and transferred to a 100 mL eggplant-shaped...
Embodiment 2
[0039] Example 2: Preparation of self-healing coating with anti-fog function
[0040] First, 0.94 g (6 mmol) of dimethylaminoethyl methacrylate was dissolved in 20 mL of acetone under a nitrogen atmosphere. Next, 0.73 g (6 mmol) of 1,3-propane sultone was completely dissolved in 10 mL of acetone, and the resulting solution was added dropwise to the above dimethylaminoethyl methacrylate solution under stirring. Then, the mixed solution was stirred at room temperature and protected from light for 48 h. Finally, a white precipitate was precipitated using ice acetone, filtered, and vacuum-dried at 30° C. for 6 h. Secondary precipitation was carried out with glacial ether, and the product SBMA was vacuum-dried at 30°C for 24 hours and stored at low temperature.
[0041] 3 g (12 mmol) of hexafluorobutyl methacrylate, 0.837 g (3 mmol) of SBMA, and 77 mg of azobisisobutyronitrile were fully dissolved in 35 mL of dimethyl sulfoxide, and transferred to a 100 mL eggplant-shaped flask. ...
Embodiment 3
[0043] Example 3: Preparation of self-healing coating with anti-fog function
[0044] First, 0.94 g (6 mmol) of dimethylaminoethyl methacrylate was dissolved in 20 mL of acetone under a nitrogen atmosphere. Next, 0.73 g (6 mmol) of 1,3-propane sultone was completely dissolved in 10 mL of acetone, and the resulting solution was added dropwise to the above dimethylaminoethyl methacrylate solution under stirring. Then, the mixed solution was stirred at room temperature and protected from light for 48 h. Finally, a white precipitate was precipitated using ice acetone, filtered, and vacuum-dried at 30° C. for 6 h. Secondary precipitation was carried out with glacial ether, and the product SBMA was vacuum-dried at 30°C for 24 hours and stored at low temperature.
[0045] 2.625 g (10.5 mmol) of hexafluorobutyl methacrylate, 1.125 g (4.5 mmol) of SBMA, and 75 mg of azobisisobutyronitrile were fully dissolved in 35 mL of dimethyl sulfoxide, and transferred to a 100 mL eggplant-shaped...
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