Mosaic-type nano film

A nano-membrane and mosaic technology, applied in filament/wire molding, conjugated synthetic polymer artificial filament, textiles and papermaking, etc., can solve the difficulty of increasing electrolyte wetting materials, complicate the diaphragm production process, and cannot prevent current flow Overload and other problems, to achieve the effect of preventing current overload, improving physical and mechanical properties, and increasing force

Inactive Publication Date: 2013-04-03
SOUTHEAST UNIV
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Problems solved by technology

[0004] At present, the commercially available porous membranes mainly have the following disadvantages: First, the porosity is often at the expense of the strength of the material. For example, the porosity of the commercially available porous membranes reaches 60% or above, so the pursuit of smaller membrane volume is the opposite of the porous membrane. A challenge, because the diaphragm must be made thin, but it must be able to maintain the original capacitance, recyclability and safety performance, etc.
Thirdly, although the pore size of a few microns has the advantages of melting and closi

Method used

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Embodiment Construction

[0023] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] Such as Figure 1 to Figure 3 As shown, a mosaic nano-membrane of the present invention is composed of nano-membrane layers. Each nano-membrane layer is composed of nano-membrane units 1 parallel to each other, and there are gaps between adjacent nano-membrane units 1 . Each nanomembrane unit 1 is composed of at least three first nanofibers and at least three second nanofibers arranged alternately. The first nanofiber is formed by mixing styrene-based cation exchange resin, adhesive, and crosslinking agent in a mass ratio of 1:4-9:1-10, and the second nanofiber is composed of vinylpyridine-based anion-exchange resin, adhesive Agent and crosslinking agent are mixed according to the mass ratio of 1:4-9:1-10.

[0025] Further, the nano-membrane layer is n layers arranged up and down and bonded to each other, and the angle between the ...

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Abstract

The invention discloses a mosaic-type nano film which consists of nano film layers, wherein each nano film layer consists of mutually parallel nano film units; a gap exits between the adjacent nano film units; each nano film unit is formed by alternately arranging at least three first nano fibers and at least three second nano fibers; each first nano fiber is formed by mixing a styrene-series cation exchange resin, an adhesive and a cross-linking agent at a mass ratio of 1:(4-9):(1-10); each second nano fiber is formed by mixing a vinylpyridine-series anion exchange resin, the adhesive and the cross-linking agent at a mass ratio of 1:(4-9):(1-10). The nano film has the favorable performances of high porosity, low bore diameter, favorable wettability, strong ionic conductivity and high mechanical strength.

Description

technical field [0001] The invention relates to a polymer nano film, in particular to a mosaic nano film. Background technique [0002] Electrospinning technology is a new type of fiber preparation technology that has emerged in recent years. This technology uses polymer solution to be polarized under the action of a high-voltage electric field, and driven by the force of the electric field, it overcomes the shackles of the surface tension of the solution to form a Taylor cone. , ejected from the nozzle to form a jet, the jet moves in the electric field, continuously splits, refines, solidifies through solvent volatilization, and finally forms a fiber non-woven fabric, but by changing the receiving device, you can get oriented fibers, and then get a regular multi-dimensional structure of the nano-membrane. The nanomembrane prepared by electrospinning has the characteristics of small fiber diameter (about 200-1000nm), large specific surface area, high porosity (porosity can ...

Claims

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Application Information

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IPC IPC(8): D04H1/4382D04H1/728D01D5/00D01F8/10
Inventor 倪恨美陈雨露吴敏张慧
Owner SOUTHEAST UNIV
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