Composite membrane of nuclear pore membrane and electrospinning, preparation method and application thereof

A technology of electrospinning and electrospinning solution, applied in the field of nuclear pore membrane and electrospinning composite membrane and its preparation, can solve the problem of poor air permeability of materials, uneven surface of non-woven fabrics, different pore sizes, etc. problem, to achieve the effect of small air permeability, long service life and good cleaning

Active Publication Date: 2021-06-08
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface of the non-woven fabric is uneven and the pore size is different. In order to achieve a good interception effect, the non-woven fabric needs to be sprayed thicker, which results in poor air permeability of the material.

Method used

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  • Composite membrane of nuclear pore membrane and electrospinning, preparation method and application thereof
  • Composite membrane of nuclear pore membrane and electrospinning, preparation method and application thereof
  • Composite membrane of nuclear pore membrane and electrospinning, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Extremely preparation of the composite film of the nuclear hole film and electrostatic spinning

[0039] The composite film of the nuclear well film and electrospinning is prepared according to the following method:

[0040] (1) Composite of the nuclear press film and the nonwoven fabric by hot pressing, the hot press temperature is 80 ° C, the time is 10 seconds, the pressure is 0.5 bar;

[0041] (2) The polymer material PLA is formulated into an electrospinning solution to an electrospinning solution in electrospinning solution, and the electrospinning liquid is formed to form nanofibers in the surface of the nuclear well film by electrospinning equipment.

[0042] The composite membrane obtained by the obtained nuclear well film and the electrospinning film is composed of a substrate, a nuclear well film, and electrostatic spinning from the bottom to top. Such as figure 1 Indicated.

[0043] Among them, the material constituting the electrospinning is PLA, the ...

Embodiment 2

[0046] Example 2: Composite film and preparation method thereof of nuclear hole film and electrostatic spinning

[0047] The composite film of the nuclear well film and electrospinning is prepared according to the following method:

[0048] (1) Composite of the nuclear press film and the nonwoven fabric by hot pressing, the hot press temperature is 100 ° C, the time is 15 seconds, the pressure is 0.5 bar;

[0049] (2) Preparation of polymer material PVDF and electrostatic spin solution dimethylacetamide is an electrospinning solution; electrostatic spun liquid forms nanofibers in the surface of the nuclear hole film by electrospinning equipment.

[0050] The composite membrane obtained by the obtained nuclear well film and the electrospinning film is composed of a substrate, a nuclear well film, and electrostatic spinning from the bottom to top. Such as figure 1 Indicated.

[0051] Among them, the material constituting the electrospinning is PVDF, the electrospin thickness is 1 mi...

Embodiment 3

[0054] Example 3: Extremely prepared by the composite film of the nuclear hole film and electrostatic spinning

[0055] The composite film of the nuclear well film and electrospinning is prepared according to the following method:

[0056] (1) Composite of the nuclear press film and the nonwoven fabric by hot pressing, the hot press temperature is 120 ° C, the time is 10 seconds, the pressure is 0.5 bar;

[0057] (2) The polymer material PAN is formulated into an electrospinning solution in electrostatic spinning solution in electrostatic spinning solution; the electrospinning liquid is formed into the surface of the nuclear hole film by the electrospinning device.

[0058] The composite membrane obtained by the obtained nuclear well film and the electrospinning film is composed of a substrate, a nuclear well film, and electrostatic spinning from the bottom to top. Such as figure 1 Indicated.

[0059] Among them, the material constituting the electrostatic spinning is PAN, the thi...

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Abstract

The invention discloses a composite membrane of nuclear pore membrane and electrostatic spinning, a preparation method and application thereof. The composite membrane is sequentially composed of an electrospun layer, a nuclear pore membrane and a substrate from top to bottom. The composite membrane has a high rejection rate, good air permeability and is easy to clean; the composite membrane can be applied to liquid filtration and air filtration, including sewage and wastewater treatment, oil-water separation, food and medicine, biochemical and other membrane industry fields.

Description

Technical field [0001] The present invention belongs to the field of material, and more particularly to a composite film of a nuclear hole film and an electrostatic spinning and a preparation method thereof. Background technique [0002] The nuclear well film is also referred to as a nuclear microporous membrane or a heavy ion microporous membrane. It is made of a hemonium in the insulating material film and then chemically etched into the holes. The nuclear well film is also known as the world's most precise filter, because the same nuclear well film material, almost all the size and shape of all holes are completely consistent. The nuclear well membrane is currently mainly used in medical filtration and civil filter products. [0003] Electrostatic spinning technology is also known as electrophoresis technology, and the polymer fluid is introduced into the polymer nanofiber by introducing static power. Compared with the preparation method of other nanofibers, electrostatic spin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/12B01D69/14B01D69/02B01D67/00
CPCB01D67/0002B01D69/02B01D69/12B01D69/14B01D2323/39
Inventor 莫丹胡正国肖国青袁平徐瑚珊刘杰段敬来姚会军孙良亭宋明涛马艺准张录卫李运杰
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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