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Vegetable oil/inorganic nano particle composite super-hydrophobic coating solution and its preparation method and application

A technology of inorganic nanoparticles and super-hydrophobic coating, applied in the direction of coating, etc., can solve problems such as harsh process conditions, complicated preparation process, and expensive raw materials, and achieve simple preparation methods, stable super-hydrophobic performance, and wide sources of raw materials Effect

Active Publication Date: 2019-05-31
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Technical problem to be solved: In order to solve the problems of complex preparation process, harsh process conditions and expensive raw materials in the preparation of superhydrophobic materials, the present invention uses renewable biomass resource vegetable oil as raw material, combined with ultraviolet light curing technology, to develop a A vegetable oil / inorganic nanoparticle composite superhydrophobic coating solution and its preparation method and application, which can be applied to the field of oil-water separation

Method used

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  • Vegetable oil/inorganic nano particle composite super-hydrophobic coating solution and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0018] 1) Preparation of tung oil-based mercaptan: Mix 7.8g of 2-mercaptoethanol and 11g of tung oil evenly, add 0.22g of initiator 2-hydroxy-2-methyl-1-phenylacetone, mix evenly and put them under ultraviolet light React under light irradiation for 6 hours to obtain tung oil polyol; disperse 10.5 g of tung oil polyol and 6.3 g of mercaptopropionic acid in 100 mL of toluene and stir evenly, react at 110 °C for 6 h under the action of 0.34 g of p-toluenesulfonic acid, and finally The product was dispersed in 100 mL of ethyl acetate, and after washing with water and rotary evaporation to remove the solvent, tung oil-based mercaptan was obtained;

[0019] 2) Mix 1 g of tung oil mercaptan and 0.5 g of octavinyl POSS evenly, add 3 mg of 2-hydroxy-2-methyl-1-phenylacetone and disperse evenly, and finally add 15 mL of tetrahydrofuran for dilution to form a coating solution;

[0020] 3) Coating the coating solution on glass flakes, cotton cloth, metal mesh, filter paper and wood by sp...

Embodiment 2

[0023] 1) Preparation of tung oil-based mercaptan: Mix 7.8g of 2-mercaptoethanol and 11g of tung oil evenly, add 0.22g of initiator 2-hydroxy-2-methyl-1-phenylacetone, mix evenly and put them under ultraviolet light React under light irradiation for 6 hours to obtain tung oil polyol; disperse 10.5 g of tung oil polyol and 6.3 g of mercaptopropionic acid in 100 mL of toluene and stir evenly, react at 110 °C for 6 h under the action of 0.34 g of p-toluenesulfonic acid, and finally The product was dispersed in 100 mL of ethyl acetate, and after washing with water and rotary evaporation to remove the solvent, tung oil-based mercaptan was obtained;

[0024] 2) Mix 1g tungyl mercaptan and 0.5 g octavinyl POSS evenly, add 3 mg of 2-hydroxy-2-methyl-1-phenylacetone and 0.15 g of SiO 2 Nanoparticles are uniformly dispersed, and finally 15mL tetrahydrofuran is added to dilute to form a coating solution;

[0025] 3) Coating the coating solution on glass flakes, cotton cloth, metal mesh,...

Embodiment 3

[0028] 1) Preparation of tung oil-based mercaptan: Mix 7.8g of 2-mercaptoethanol and 11g of tung oil evenly, add 0.22g of initiator 2-hydroxy-2-methyl-1-phenylacetone, mix evenly and put them under ultraviolet light React under light irradiation for 6 hours to obtain tung oil polyol; disperse 10.5 g of tung oil polyol and 6.3 g of mercaptopropionic acid in 100 mL of toluene and stir evenly, react at 110 °C for 6 h under the action of 0.34 g of p-toluenesulfonic acid, and finally The product was dispersed in 100 mL of ethyl acetate, and after washing with water and rotary evaporation to remove the solvent, tung oil-based mercaptan was obtained;

[0029] 2) Mix 1g tungyl mercaptan and 0.5 g octavinyl POSS evenly, add 3 mg of 2-hydroxy-2-methyl-1-phenylacetone and 0.3 g of SiO 2 Nanoparticles are uniformly dispersed, and finally 15mL tetrahydrofuran is added to dilute to form a coating solution;

[0030] 3) Coating the coating solution on glass flakes, cotton cloth, metal mesh, ...

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Abstract

Disclosed are a vegetable oil / inorganic nano particle composite super-hydrophobic coating solution and its preparation method and application. The preparation method includes introducing a polyhydroxystructure to a vegetable oil molecular structure through mercapto-ene reaction initiated by ultraviolet light, and performing esterification reaction to synthetize vegetable oil based mercaptan; uniformly mixing vegetable oil based mercaptan, polyene unsaturated monomer, inorganic nano particles and photoinitiators to obtain a mixture, coating a base material with the mixture, and irradiating thecoating by ultraviolet light, so as to obtain the super-hydrophobic coating. According to the preparation method, raw materials have wide source and low cost; the preparation process is simple and effective; the composite coating prepared by the method has the contact angle always greater than 150 degrees, has excellent super-hydrophobicity and self-cleaning performance, and can be applied to thefield of oil and water separation.

Description

technical field [0001] The invention belongs to the fields of chemical engineering and bio-based polymer composite functional materials, and relates to a superhydrophobic coating material, in particular to a vegetable oil / inorganic nanoparticle composite superhydrophobic coating solution and its preparation method and application. Background technique [0002] Wettability is an important characteristic of a solid surface, which is the ability or tendency of a liquid to spread on a solid surface and is mainly affected by the chemical composition or microstructure of the surface. Superhydrophobicity is a special wettability phenomenon of water droplets on solid surfaces. At present, the surface with a water contact angle greater than 150° and a rolling angle less than 10° is called a superhydrophobic surface. Superhydrophobic surfaces have attracted the attention of many researchers because of their excellent hydrophobicity, self-cleaning ability, and potential application ...

Claims

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Application Information

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IPC IPC(8): C08F220/10C08F230/08C08F2/48C09D133/04C09D7/61
Inventor 尚倩倩周永红刘承果杨晓慧胡云胡立红薄采颖
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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