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Ultraviolet blocking ternary nano composite membrane material and preparation method thereof

A nano-composite and UV-blocking technology is applied in the field of UV-blocking ternary nano-composite film materials and their preparation, which can solve the problems of complex preparation process and achieve the effects of simple and easy process, superior UV-blocking performance and simple method.

Active Publication Date: 2019-12-03
广州秘康生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Chinese patent 201110153710.4 discloses a highly transparent UV-blocking imitation ceramic flexible nano-composite membrane material and its preparation method. The composite membrane material uses phase transfer-in-situ polymerization method, the preparation process is relatively complicated, and the visible light transmittance reaches more than 90%. Ultraviolet shielding rate reaches 99% and above

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  • Ultraviolet blocking ternary nano composite membrane material and preparation method thereof
  • Ultraviolet blocking ternary nano composite membrane material and preparation method thereof
  • Ultraviolet blocking ternary nano composite membrane material and preparation method thereof

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Embodiment 1

[0034] This embodiment provides a method for preparing a UV-blocking ternary nanocomposite film material, comprising the following steps:

[0035] (1) Fully dissolve 600 mg of zein in 50 ml of 75% ethanol aqueous solution at 60°C, heat and reflux at 60°C and stir for 15 minutes to obtain a protein solution;

[0036] (2) Add 20 mg of cerium nitrate hexahydrate, 24 mg of urea, and 1.8 g of polyvinylpyrrolidone to the protein solution in sequence at 60°C, adjust the pH to 8 with 1mol / L sodium hydroxide solution, then add 100 μL of glycerol and 100 μL of Tween-80, reflux and stir at 60°C for 15 minutes, then raise the temperature to 80°C and continue stirring for 2 minutes to obtain a composite solution;

[0037] (3) Filtrate the composite solution under reduced pressure to obtain a film-forming solution. Apply the film-forming solution evenly on a glass slide, and vacuum-dry it at 80°C for 24 hours to obtain an ultraviolet-blocking ternary nanocomposite film material, that is, a ...

Embodiment 2

[0039] This embodiment provides a method for preparing a UV-blocking ternary nanocomposite film material, comprising the following steps:

[0040] (1) Fully dissolve 600 mg of zein in 50 ml of 75% ethanol aqueous solution at 60°C, heat and reflux at 60°C and stir for 15 minutes to obtain a protein solution;

[0041] (2) Add 50 mg of cerium nitrate hexahydrate, 60 mg of urea and 1.8 g of polyvinylpyrrolidone to the protein solution in sequence at 60 °C, adjust the pH to 8 with 1 mol / L sodium hydroxide solution, then add 100 μL of glycerol and 100 μL of Tween-80, reflux and stir at 60°C for 15 minutes, then raise the temperature to 80°C and continue stirring for 2 minutes to obtain a composite solution;

[0042] (3) Filter the composite solution under reduced pressure to obtain a film-forming solution. Apply the film-forming solution evenly on a glass slide, and vacuum-dry it at 80°C for 24 hours to obtain an ultraviolet-blocking ternary nanocomposite membrane material, namely C...

Embodiment 3

[0044] This embodiment provides a method for preparing a UV-blocking ternary nanocomposite film material, comprising the following steps:

[0045] (1) Fully dissolve 600 mg of zein in 50 ml of 75% ethanol aqueous solution at 60°C, heat and reflux at 60°C and stir for 15 minutes to obtain a protein solution;

[0046](2) Add 100 mg of cerium nitrate hexahydrate, 120 mg of urea and 1.8 g of polyvinylpyrrolidone to the protein solution in sequence at 60°C, adjust the pH to 8 with 1mol / L sodium hydroxide solution, then add 100 μL of glycerol and 100 μL of Tween-80, reflux and stir at 60°C for 15 minutes, then raise the temperature to 80°C and continue stirring for 2 minutes to obtain a composite solution;

[0047] (3) Filter the composite solution under reduced pressure to obtain a film-forming solution. Apply the film-forming solution evenly on a glass slide, and vacuum-dry it at 80°C for 24 hours to obtain an ultraviolet-blocking ternary nanocomposite membrane material, namely Co...

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Abstract

The invention discloses an ultraviolet blocking ternary nano composite membrane material and a preparation method thereof. The ultraviolet blocking ternary nano composite membrane material comprises aprotein, nano cerium oxide, a dispersant and a surfactant. The preparation method comprises the following steps: (1) dissolving the protein into a solvent A so as to obtain a protein solution; (2) sequentially adding a cerium source, urea and the dispersant into the protein solution, adjusting the pH value, further adding the surfactant, and performing heating and stirring so as to obtain a composite solution; and (3) performing vacuum filtering on the composite solution, and performing vacuum drying, so as to obtain the ultraviolet blocking ternary nano composite membrane material. The ultraviolet blocking ternary nano composite membrane material disclosed by the invention is high in transparency and very good in ultraviolet ray shielding capability, and in addition has good hygroscopicity and biocompatibility.

Description

technical field [0001] The invention belongs to the field of composite membranes synthesized by polymer organic-inorganic nano particle composite technology, and relates to an ultraviolet blocking ternary nanocomposite membrane material and a preparation method thereof. Background technique [0002] Cerium oxide is one of the most active rare earth oxides with high refractive index and high transparency in the visible spectrum range. At the same time, it is also resistant to ultraviolet light and can store a large amount of oxygen. Compared with Zn0 and TiO2, while maintaining a strong UV absorption capacity, CeO 2 The optical transparency after film formation will be better than Zn0, TiO 2， Therefore, nano-cerium oxide has aroused strong research interest in the fields of anti-ultraviolet coating materials and sunscreen products. [0003] The main factors affecting the UV barrier properties of nano-cerium oxide are its particle size, degree of dispersion, and stability. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L39/06C08L89/00C08K3/22C08J5/18
CPCC08J5/18C08K2201/011C08K2003/2213C08J2339/06C08J2489/00
Inventor 魏坤陆璐璐樊聪慧刘维康莫灿龙杨业国
Owner 广州秘康生物科技有限公司
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