Nano-composite superhydrophobic icing-proof coating material and preparation method thereof
A coating material and super-hydrophobic technology, applied in the direction of coating, etc., can solve the problems of high price, complicated process, unfavorable large-area application, etc., and achieve the effect of durable low surface energy, excellent performance and durable super-hydrophobic performance
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[0020] Example 1:
[0021] Add 0.5 g of nano SiO 2 , 15 grams of toluene and 2 grams of KH550 were mixed uniformly in a three-necked flask. The reaction was refluxed in an oil bath at 110°C for 12 hours. The reaction stopped and cooled to room temperature. The product was centrifuged and washed to obtain amino-modified SiO 2 -NH 2 Nanoparticles.
[0022] Add 0.5 g SiO 2 -NH 2 , 15 grams of dichloromethane, 0.65 grams of triethylamine, and 0.6 grams of 2-bromoisobutyryl bromide are mixed uniformly in a three-necked flask, reacted in an ice water bath for 2 hours, and then reacted at room temperature for 20 hours, and washed with water after the reaction stopped And centrifugal separation to obtain 2-bromoisobutyryl bromide grafted nanoparticle SiO 2 -NH-Br.
[0023] Add 0.5 g SiO 2 -NH-Br, 4.5 grams of butyl acrylate, 20 grams of [N-methylperfluorohexanesulfonamido]ethyl acrylate, 0.1 grams of CuBr, 30 grams of toluene, 1.2 grams of N,N,N',N", N"-pentamethyldiethylenetriamine was mix...
Example Embodiment
[0024] Example 2:
[0025] 1g nano SiO 2 , 35 grams of toluene and 1.5 grams of KH550 were mixed uniformly in a three-necked flask, and reacted under reflux in an oil bath at 120°C for 10 hours. The reaction stopped and cooled to room temperature. The product was centrifuged and washed to obtain amino-modified SiO 2 -NH 2 Nanoparticles.
[0026] 1g SiO 2 -NH 2 , 40 grams of dichloromethane, 0.55 grams of triethylamine, and 1.2 grams of 2-bromoisobutyryl bromide were mixed uniformly in a three-necked flask, reacted in an ice water bath for 3 hours, and then reacted at room temperature for 18 hours. After the reaction is stopped, the nanoparticle SiO grafted with 2-bromoisobutyryl bromide is obtained by washing with water and centrifuging. 2 -NH-Br.
[0027] 1g SiO 2 -NH-Br, 12 grams of propyl methacrylate, 12 grams of [N-methylperfluorobutanesulfonamido] ethyl methacrylate, 0.11 grams of CuBr, 40 grams of toluene, 1.4 grams of 2,6-bis( The benzimidazole) pyridine is mixed uniformly i...
Example Embodiment
[0028] Example 3:
[0029] 1g nano SiO 2 , 50 grams of toluene and 3 grams of KH550 were mixed uniformly in a three-necked flask, and the reaction was refluxed in an oil bath at 90°C for 14 hours. The reaction stopped and cooled to room temperature. The product was centrifuged and washed to obtain amino-modified SiO 2 -NH 2 Nanoparticles.
[0030] 1g SiO 2 -NH 2 , 33 g of dichloromethane, 0.5 g of triethylamine, and 1.3 g of 2-bromoisobutyryl bromide were mixed uniformly in a three-necked flask, reacted in an ice water bath for 3 hours, and then reacted at room temperature for 18 hours. After the reaction is stopped, the nanoparticle SiO grafted with 2-bromoisobutyryl bromide is obtained by washing with water and centrifuging. 2 -NH-Br.
[0031] 1g SiO 2 -NH-Br, 9 g octadecyl methacrylate, 20 g [N-ethyl perfluorobutane sulfonamido] ethyl acrylate, 0.20 g CuCl, 50 g toluene, 2.4 g 1,10-o-diazo The phenanthrene was mixed uniformly in a three-necked flask, and after deoxygenation at ro...
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