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Electrostatic spinning film as well as preparation method thereof and application thereof in salinity gradient energy power generation

A technology of electrospinning and silk film, which is applied in the field of salt difference energy generation and electrospinning, to achieve the effects of improving performance, reducing impedance, and simplifying preparation

Inactive Publication Date: 2019-07-02
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there is no report on the application of electrospinning technology in the field of salt differential energy generation

Method used

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  • Electrostatic spinning film as well as preparation method thereof and application thereof in salinity gradient energy power generation
  • Electrostatic spinning film as well as preparation method thereof and application thereof in salinity gradient energy power generation
  • Electrostatic spinning film as well as preparation method thereof and application thereof in salinity gradient energy power generation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] (1) Preparation of double-layer electrospun film.

[0072] Dissolve polyvinyl alcohol in water to make 10% polyvinyl alcohol aqueous solution. Chitosan was dissolved in 50% acetic acid aqueous solution to prepare 5% chitosan solution. Get 10% polyvinyl alcohol solution and 5% chitosan solution to form a mixed solution, based on mass, polyvinyl alcohol in the mixed solution: chitosan=1:3, the mixed solution obtained is electrospun wire, aluminum foil was used to receive the electrospun membrane. With 2.5% by mass of glutaraldehyde, the obtained polyvinyl alcohol / chitosan electrospun film was cross-linked at 50° C. for 12 hours by steam method, and dried in an oven to obtain the polyvinyl alcohol / chitosan electrospun film . The sulfonated polyether sulfone is dissolved in DMF, a 15% solution is prepared, electrospinning is performed, and the cross-linked polyvinyl alcohol / chitosan electrospinning film is received to obtain a double-layer electrospinning film.

[0073]...

Embodiment 2

[0078] (1) Preparation of double-layer electrospun film.

[0079] Dissolve polyvinyl alcohol in water to make 10% polyvinyl alcohol aqueous solution. Chitosan was dissolved in 50% acetic acid aqueous solution to prepare 5% chitosan solution. Get 10% polyvinyl alcohol solution and 5% chitosan solution to form a mixed solution, based on mass, polyvinyl alcohol in the mixed solution: chitosan=1:4, the mixed solution obtained is electrospun wire, aluminum foil was used to receive the electrospun membrane. With 2.5% by mass of glutaraldehyde, the obtained polyvinyl alcohol / chitosan electrospun film was cross-linked at 50° C. for 12 hours by steam method, and dried in an oven to obtain the polyvinyl alcohol / chitosan electrospun film . The sulfonated polyether sulfone is dissolved in DMF, and a 15% solution is prepared for electrospinning, and received by a cross-linked polyvinyl alcohol / chitosan electrospinning film to obtain a double-layer electrospinning film.

[0080] (2) Sal...

Embodiment 3

[0084] Dissolve polyvinyl alcohol in water to make 10% polyvinyl alcohol aqueous solution. Chitosan was dissolved in 50% acetic acid aqueous solution to prepare 5% chitosan solution. Get 10% polyvinyl alcohol solution and 5% chitosan solution to form a mixed solution, based on mass, polyvinyl alcohol in the mixed solution: chitosan=1:6, the mixed solution obtained is electrospun wire, aluminum foil was used to receive the electrospun membrane. With 2.5% by mass of glutaraldehyde, the obtained polyvinyl alcohol / chitosan electrospun film was cross-linked at 50° C. for 12 hours by steam method, and dried in an oven to obtain the polyvinyl alcohol / chitosan electrospun film . The sulfonated polyether sulfone is dissolved in DMF, and a 15% solution is prepared for electrospinning, and received by a cross-linked polyvinyl alcohol / chitosan electrospinning film to obtain a double-layer electrospinning film.

[0085] For the test of the power generation performance of the salt differ...

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Abstract

The application relates to an electrostatic spinning film, comprising a first layer of electrostatic spinning film and a second layer of electrostatic spinning film arranged on the first layer of electrostatic spinning film, wherein the first layer of electrostatic spinning film is prepared from a mixture of a hydrophilic polymer, a cross-linking agent and natural polysaccharide with positive charges, and the second layer of electrostatic spinning film is prepared from an aromatic polymer with negative charges; or the first layer of electrostatic spinning film is prepared from the aromatic polymer with the negative charges, and the second layer of electrostatic spinning film is prepared from the mixture of the hydrophilic polymer, the cross-linking agent and the natural polysaccharide withthe positive charges. The application also provides a method for preparing the electrostatic spinning film, and application of the electrostatic spinning film in salinity gradient energy power generation. When being used for the salinity gradient energy power generation, the electrostatic spinning film shows a higher energy output power. The film provided by the invention is high in porosity, reduces the impedance in an ion transmission process, and greatly improves the salinity gradient energy power generation performance.

Description

technical field [0001] This application relates to the technical field of salt differential energy generation and electrospinning. Specifically, the present application relates to an electrospun membrane, a method for preparing an electrospun membrane and the application of the electrospun membrane in salt differential energy generation. Background technique [0002] With the rapid development of the global economy, people's demand for energy is increasing day by day, and fossil energy will still occupy the main position for a long time in the future, but fossil energy is a non-renewable energy, and it is urgent to find new energy to replace fossil energy. The ocean is an inexhaustible treasure house, containing a variety of renewable energy, seawater salinity energy is the most important one. Where rivers flow into the sea, due to the difference in salinity between fresh water and sea water, sea water has osmotic pressure, heat of dilution, heat of absorption, and concent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/009D04H3/005D04H3/03D01D5/00H01M8/22
CPCD01D5/0076D01D5/0092D04H3/005D04H3/009D04H3/03D10B2321/06D10B2331/06H01M8/227Y02E60/50
Inventor 吕春欣
Owner JIAXING UNIV
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