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Nuclear track membrane and electrostatic spinning composite membrane and preparation method and application thereof

A technology of electrospinning and electrospinning liquid, which is applied in the field of nuclear pore membrane and electrospinning composite membrane and its preparation, which can solve the problem of different pore sizes, uneven surface of non-woven fabrics, poor air permeability of materials, etc. problems, achieve long service life, improve retention performance, and improve air permeability

Active Publication Date: 2019-04-12
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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  • Nuclear track membrane and electrostatic spinning composite membrane and preparation method and application thereof
  • Nuclear track membrane and electrostatic spinning composite membrane and preparation method and application thereof
  • Nuclear track membrane and electrostatic spinning composite membrane and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Composite membrane of nuclear pore membrane and electrospinning and its preparation method

[0039] Prepare the composite membrane of nuclear pore membrane and electrospinning according to the following method:

[0040] (1) Composite the nuclear pore membrane and the non-woven fabric by hot pressing, the hot pressing temperature is 80°C, the time is 10 seconds, and the pressure is 0.5 bar;

[0041] (2) The polymer material PLA and the electrospinning solution dimethylacetamide are prepared as an electrospinning solution; the electrospinning solution is formed into nanofibers and sprayed on the surface of the nuclear pore membrane through an electrospinning device.

[0042] The composite membrane of nuclear pore membrane and electrospinning obtained in this embodiment is composed of base material, nuclear pore membrane and electrospinning successively from bottom to top, such as figure 1 shown.

[0043] Wherein, the material constituting the electrospinning is...

Embodiment 2

[0046] Example 2: Composite membrane of nuclear pore membrane and electrospinning and its preparation method

[0047] Prepare the composite membrane of nuclear pore membrane and electrospinning according to the following method:

[0048] (1) Composite the nuclear pore membrane and the non-woven fabric by hot pressing, the hot pressing temperature is 100°C, the time is 15 seconds, and the pressure is 0.5 bar;

[0049] (2) The polymer material PVDF and the electrospinning solution dimethylacetamide are prepared as an electrospinning solution; the electrospinning solution is formed into nanofibers and sprayed on the surface of the nuclear pore membrane through an electrospinning device.

[0050] The composite membrane of nuclear pore membrane and electrospinning obtained in this embodiment is composed of base material, nuclear pore membrane and electrospinning successively from bottom to top, such as figure 1 shown.

[0051] Wherein, the material constituting the electrospinnin...

Embodiment 3

[0054] Example 3: Composite membrane of nuclear pore membrane and electrospinning and its preparation method

[0055] Prepare the composite membrane of nuclear pore membrane and electrospinning according to the following method:

[0056] (1) Composite the nuclear pore membrane and the non-woven fabric by hot pressing, the hot pressing temperature is 120°C, the time is 10 seconds, and the pressure is 0.5 bar;

[0057] (2) The polymer material PAN and the electrospinning solution dimethylacetamide are prepared as an electrospinning solution; the electrospinning solution is formed into nanofibers and sprayed on the surface of the nuclear pore membrane through an electrospinning device.

[0058] The composite membrane of nuclear pore membrane and electrospinning obtained in this embodiment is composed of base material, nuclear pore membrane and electrospinning successively from bottom to top, such as figure 1 shown.

[0059] Wherein, the material constituting the electrospinning...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a nuclear track membrane and electrostatic spinning composite membrane and a preparation method and application thereof. The composite membrane is composed of an electrostaticspinning layer, a nuclear track membrane and a base material from top to bottom. The composite membrane is high in rejection rate, good in air permeability and easy to clean; the composite membrane can be applied to the aspects such as liquid filtering and air filtering, and comprises the filter membrane industry fields of waste water treatment, oil-water separation, food and medicine, biochemicalengineering and the like.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a composite membrane of nuclear pore membrane and electrospinning, a preparation method and application thereof. Background technique [0002] Nuclear pore membrane, also known as nuclear microporous membrane or heavy ion microporous membrane, is formed by punching holes in the insulating material film with heavy ions and then chemically etching to expand the pores. The nuclear pore membrane is also known as the most precise filter membrane in the world, because the same piece of nuclear pore membrane material has almost the same size and shape of all pores. Nuclear pore membranes are currently mainly used in medical filtration and civilian filtration products. [0003] Electrospinning technology, also known as electrospinning technology, stretches the polymer fluid by introducing electrostatic force to form polymer nanofibers. Compared with other nanofiber preparation meth...

Claims

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Application Information

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Patent Type & Authority Applications(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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