Preparation method of a durable photothermal real-time self-healing superamphiphobic coating

Abstract

The invention discloses a preparation method of a durable photothermal real-time self-healing super-amphiphobic coating. The invention synthesizes styrene / styrene that can undergo steam-induced phase separation through ring-opening reaction, free radical polymerization and cross-linking reaction Derivatives-bisphenol A diglycidyl ether monoacrylate copolymer, the copolymer has a protective effect of bonding, self-healing and phase separation to produce micron "armor", thus endowing the coating with excellent durability; The introduction of fluorinated carbon nanotubes with excellent photothermal effect and thermal conductivity into the self-healing polymer endows the coating with excellent superamphiphobic properties, durability and real-time photothermal self-healing properties, and then induces phase separation and curing crosslinking by steam A durable photothermal real-time self-healing superamphiphobic coating was obtained. The coating can realize the real-time self-repair of micro-nano structure damage and chemical damage by the super-amphiphobic coating with the help of sunlight, laying a solid foundation for the practical application of the super-amphiphobic coating.

Description

technical field

[0001] The invention relates to the preparation of a super-amphiphobic coating, in particular to a method for preparing a durable photothermal real-time self-repairing super-amphiphobic coating, which belongs to the field of super-amphiphobic coatings. Background technique

[0002] Superamphiphobic coating is a special wettability surface with contact angles greater than 150° and low rolling angle for water and low surface energy liquids such as oil. Due to its unique wetting properties, it has broad application prospects and potential economic value in the fields of self-cleaning, anti-icing, anti-fouling, oil / water separation, and anti-corrosion. The preparation ideas of super-amphiphobic coatings mainly fall into the following three categories: (1) construct rough structure first and then perform low surface energy treatment; (2) construct rough structure after low surface energy treatment; (3) construct rough structure and low surface energy Surface ener...

Examples

Embodiment 1

[0033] (1) Dissolve bisphenol A diglycidyl ether in toluene by heating at 70°C; then dissolve potassium hydroxide in acrylic acid and add it dropwise to the toluene solution of bisphenol A diglycidyl ether, and add inhibitor Polymerizing agent hydroquinone, reflux reaction at 110~120°C for 48~60 h (nitrogen protection), the product is separated and purified by column chromatography to obtain bisphenol A diglycidyl ether monoacrylate, in which bisphenol A The molar ratio of diglycidyl ether and acrylic acid is 1:1, the amount of hydroquinone added is 0.3% of the total mass of bisphenol A diglycidyl ether and acrylic acid, and the amount of potassium hydroxide added is 0.6% of the mass of acrylic acid. Then take bisphenol A diglycidyl ether monoacrylate and styrene into a three-necked flask filled with tetrahydrofuran, add the initiator azobisisobutyronitrile, and react under reflux at 70°C for 48 h (nitrogen protection) to obtain styrene- Bisphenol A diglycidyl ether monoacryla...

Embodiment 2

[0038] (1) Dissolve bisphenol A diglycidyl ether in toluene by heating at 70°C; then dissolve potassium hydroxide in acrylic acid and add it dropwise to the toluene solution of bisphenol A diglycidyl ether, and add inhibitor Polymerizing agent hydroquinone, reflux reaction at 110~120°C for 48~60 h (nitrogen protection), the product is separated and purified by column chromatography to obtain bisphenol A diglycidyl ether monoacrylate, in which bisphenol A The molar ratio of diglycidyl ether and acrylic acid is 1:0.75, the amount of hydroquinone added is 0.24% of the total mass of bisphenol A diglycidyl ether and acrylic acid, and the amount of potassium hydroxide added is 0.5% of the mass of acrylic acid. Then take bisphenol A diglycidyl ether monoacrylate and styrene into a three-necked flask filled with tetrahydrofuran, add the initiator azobisisobutyronitrile, and react under reflux at 70°C for 48 h (nitrogen protection) to obtain styrene- Bisphenol A diglycidyl ether monoac...

Embodiment 3

[0043] (1) Dissolve bisphenol A diglycidyl ether in toluene by heating at 70°C; then dissolve potassium hydroxide in acrylic acid and add it dropwise to the toluene solution of bisphenol A diglycidyl ether, and add inhibitor Polymerizing agent hydroquinone, reflux reaction at 110~120°C for 48~60 h (nitrogen protection), the product is separated and purified by column chromatography to obtain bisphenol A diglycidyl ether monoacrylate, in which bisphenol A The molar ratio of diglycidyl ether and acrylic acid is 1:1, the amount of hydroquinone added is 0.3% of the total mass of bisphenol A diglycidyl ether and acrylic acid, and the amount of potassium hydroxide added is 0.6% of the mass of acrylic acid. Then take bisphenol A diglycidyl ether monoacrylate and styrene into a three-necked flask filled with tetrahydrofuran, add the initiator azobisisobutyronitrile, and react under reflux at 70°C for 48 h (nitrogen protection) to obtain styrene- Bisphenol A diglycidyl ether monoacryla...

technical field

[0001] The invention relates to the preparation of a super-amphiphobic coating, in particular to a method for preparing a durable photothermal real-time self-repairing super-amphiphobic coating, which belongs to the field of super-amphiphobic coatings. Background technique

[0002] Superamphiphobic coating is a special wettability surface with contact angles greater than 150° and low rolling angle for water and low surface energy liquids such as oil. Due to its unique wetting properties, it has broad application prospects and potential economic value in the fields of self-cleaning, anti-icing, anti-fouling, oil / water separation, and anti-corrosion. The preparation ideas of super-amphiphobic coatings mainly fall into the following three categories: (1) construct rough structure first and then perform low surface energy treatment; (2) construct rough structure after low surface energy treatment; (3) construct rough structure and low surface energy Surface ener...

Examples

Embodiment 1

[0033] (1) Dissolve bisphenol A diglycidyl ether in toluene by heating at 70°C; then dissolve potassium hydroxide in acrylic acid and add it dropwise to the toluene solution of bisphenol A diglycidyl ether, and add inhibitor Polymerizing agent hydroquinone, reflux reaction at 110~120°C for 48~60 h (nitrogen protection), the product is separated and purified by column chromatography to obtain bisphenol A diglycidyl ether monoacrylate, in which bisphenol A The molar ratio of diglycidyl ether and acrylic acid is 1:1, the amount of hydroquinone added is 0.3% of the total mass of bisphenol A diglycidyl ether and acrylic acid, and the amount of potassium hydroxide added is 0.6% of the mass of acrylic acid. Then take bisphenol A diglycidyl ether monoacrylate and styrene into a three-necked flask filled with tetrahydrofuran, add the initiator azobisisobutyronitrile, and react under reflux at 70°C for 48 h (nitrogen protection) to obtain styrene- Bisphenol A diglycidyl ether monoacryla...

Embodiment 2

[0038] (1) Dissolve bisphenol A diglycidyl ether in toluene by heating at 70°C; then dissolve potassium hydroxide in acrylic acid and add it dropwise to the toluene solution of bisphenol A diglycidyl ether, and add inhibitor Polymerizing agent hydroquinone, reflux reaction at 110~120°C for 48~60 h (nitrogen protection), the product is separated and purified by column chromatography to obtain bisphenol A diglycidyl ether monoacrylate, in which bisphenol A The molar ratio of diglycidyl ether and acrylic acid is 1:0.75, the amount of hydroquinone added is 0.24% of the total mass of bisphenol A diglycidyl ether and acrylic acid, and the amount of potassium hydroxide added is 0.5% of the mass of acrylic acid. Then take bisphenol A diglycidyl ether monoacrylate and styrene into a three-necked flask filled with tetrahydrofuran, add the initiator azobisisobutyronitrile, and react under reflux at 70°C for 48 h (nitrogen protection) to obtain styrene- Bisphenol A diglycidyl ether monoac...

Embodiment 3

[0043] (1) Dissolve bisphenol A diglycidyl ether in toluene by heating at 70°C; then dissolve potassium hydroxide in acrylic acid and add it dropwise to the toluene solution of bisphenol A diglycidyl ether, and add inhibitor Polymerizing agent hydroquinone, reflux reaction at 110~120°C for 48~60 h (nitrogen protection), the product is separated and purified by column chromatography to obtain bisphenol A diglycidyl ether monoacrylate, in which bisphenol A The molar ratio of diglycidyl ether and acrylic acid is 1:1, the amount of hydroquinone added is 0.3% of the total mass of bisphenol A diglycidyl ether and acrylic acid, and the amount of potassium hydroxide added is 0.6% of the mass of acrylic acid. Then take bisphenol A diglycidyl ether monoacrylate and styrene into a three-necked flask filled with tetrahydrofuran, add the initiator azobisisobutyronitrile, and react under reflux at 70°C for 48 h (nitrogen protection) to obtain styrene- Bisphenol A diglycidyl ether monoacryla...