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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

Active Publication Date: 2014-05-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned superhydrophobic preparation method requires multi-step operations, and the process is complicated.
Moreover, the preparation of most superhydrophobic surfaces requires specific instruments, which are expensive and not conducive to large-area applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 0.5 g nano-SiO 2 , 15 grams of toluene and 2 grams of KH550 were mixed evenly in a three-necked flask, and refluxed in an oil bath at 110°C for 12 hours. After the reaction was stopped and cooled to room temperature, the product was centrifuged and washed to obtain amino-modified SiO 2 -NH 2 Nanoparticles.

[0022] 0.5 g SiO 2 -NH 2 , 15 grams of dichloromethane, 0.65 grams of triethylamine, and 0.6 grams of 2-bromoisobutyryl bromide were mixed uniformly in a three-necked flask, and reacted in an ice-water bath for 2 hours, then reacted at room temperature for 20 hours, and washed with water after the reaction stopped and centrifugation to obtain 2-bromoisobutyryl bromide-grafted nanoparticles SiO 2 -NH-Br.

[0023] Add 0.5 g of SiO 2 -NH-Br, 4.5 g butyl acrylate, 20 g [N-methyl perfluorohexanesulfonamido] ethyl acrylate, 0.1 g CuBr, 30 g toluene, 1.2 g N,N,N',N", Mix N"-pentamethyldiethylenetriamine evenly in a three-necked flask, remove oxygen at room temperatu...

Embodiment 2

[0025] 1 g of nano-SiO 2 , 35 grams of toluene and 1.5 grams of KH550 were mixed evenly in a three-necked flask, and refluxed in an oil bath at 120°C for 10 hours. After the reaction was stopped and cooled to room temperature, the product was centrifuged and washed to obtain amino-modified SiO 2 -NH 2 Nanoparticles.

[0026] 1 g 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 was stopped, it was washed with water and centrifuged to obtain 2-bromoisobutyryl bromide-grafted nanoparticles SiO 2 -NH-Br.

[0027] 1 g of SiO 2 -NH-Br, 12 g propyl methacrylate, 12 g [N-methylperfluorobutanesulfonamido] ethyl methacrylate, 0.11 g CuBr, 40 g toluene, 1.4 g 2,6-bis( Benzimidazole)pyridine was mixed evenly in a three-necked flask, deoxygenated at room temperat...

Embodiment 3

[0029] 1 g of nano-SiO 2 , 50 grams of toluene and 3 grams of KH550 were mixed evenly in a three-necked flask, and refluxed in an oil bath at 90°C for 14 hours. After the reaction was stopped and cooled to room temperature, the product was centrifuged and washed to obtain amino-modified SiO 2 -NH 2 Nanoparticles.

[0030] 1 g SiO 2 -NH 2 , 33 grams of dichloromethane, 0.5 grams of triethylamine, and 1.3 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 was stopped, it was washed with water and centrifuged to obtain 2-bromoisobutyryl bromide-grafted nanoparticles SiO 2 -NH-Br.

[0031] 1 g of SiO 2 -NH-Br, 9 g of octadecyl methacrylate, 20 g of [N-ethylperfluorobutanesulfonamido] ethyl acrylate, 0.20 g of CuCl, 50 g of toluene, 2.4 g of 1,10-o-diazepine The phenanthrene was mixed evenly in a three-necked flask, and the temperature w...

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PUM

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Abstract

The invention discloses a nano-composite superhydrophobic icing-proof coating material. The nano-composite superhydrophobic icing-proof coating material comprises the following components in percentage by mass: 5-50% of fluorine-containing acrylate copolymer-modified inorganic nanoparticles and 50-95% of an organic solvent. A preparation method for the nano-composite superhydrophobic icing-proof coating material comprises the following steps: uniformly mixing nano-SiO2, methylbenzene and 3-aminopropyl triethoxysilane, and performing refluxing reaction in an oil bath to obtain amino-modified SiO2-NH2 inorganic nanoparticles; uniformly mixing the SiO2-NH2, dichloromethane, triethylamine and 2-bromoisobutyryl bromide, and reacting in an ice-water bath to obtain 2-bromoisobutyryl bromide-grafted nanoparticle SiO2-NH-Br; uniformly mixing the SiO2-NH-Br, an acrylate monomer, fluorine-containing acrylate, CuX, methylbenzene and a ligand, deoxidizing, precipitating, performing centrifugal separation, and dissolving a product into the organic solvent to obtain the nano-composite superhydrophobic icing-proof coating material. The nano-composite superhydrophobic icing-proof coating material has excellent performance, lasting low surface energy and superhydrophobicity, and good icing-proof performance and has the effect of prolonging the icing time, and can be widely used for prevention and control of icing on the surfaces of communication lines, fan blades, airport facilities, airplane wings and the like.

Description

technical field [0001] The invention relates to a coating material and a preparation method thereof, in particular to a nanocomposite super-hydrophobic anti-icing functional coating material and a preparation method thereof. Background technique [0002] Icing on the surface of aviation, communication, electric power and transportation equipment brings a lot of inconvenience to people's production and life, and can even cause major economic losses. Chinese patent CN101394073 invented a heating and oscillation technology based on high-frequency pulse current, which can prevent the surface of power transmission and distribution lines from being covered with ice, and can achieve the effect of deicing and melting ice when it is covered with ice. Chinese patent CN101777740A invents a wire anti-icing device for overhead transmission lines in the field of power transmission equipment, which can remove icing generated on the transmission line and ensure that the supporting device of...

Claims

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Application Information

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IPC IPC(8): C09D151/10C08F292/00
Inventor 詹晓力阎映弟张庆华陈丰秋
Owner ZHEJIANG UNIV
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