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Antistatic melt-sprayed composite antibacterial nanofiber non-woven fabric and preparation method thereof

A non-woven fabric, composite antibacterial technology, applied in the field of non-woven materials, can solve the problems of increasing production process, generating energy consumption, reducing the filtration and air permeability of composite filter materials, and achieving the effect of saving energy consumption and improving quality

Inactive Publication Date: 2020-04-07
TONGXIANG JIANMIN FILTER MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above methods can achieve a firm bond between different layers, the hot air and hot pressing process increases the production process and changes the cross-sectional shape of the fiber, thereby affecting its filtration and ventilation. In addition, the hot air and hot pressing process will generate energy consumption; The use of the mixture will block the pore structure of the fiber layer and reduce the filtration and air permeability of the composite filter material; the above methods will have a negative impact on the overall performance of the core nanofiber layer

Method used

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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  • Antistatic melt-sprayed composite antibacterial nanofiber non-woven fabric and preparation method thereof
  • Antistatic melt-sprayed composite antibacterial nanofiber non-woven fabric and preparation method thereof
  • Antistatic melt-sprayed composite antibacterial nanofiber non-woven fabric and preparation method thereof

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Embodiment 1

[0025] Embodiment 1, a kind of preparation method of antistatic melt-blown composite antibacterial nanofiber nonwoven fabric, carries out melt mixing, melt-blown spinning, solution mixing, electrospinning successively, promptly carries out following steps successively:

[0026] a) According to the mixing characteristics between nanoparticles and polypropylene, and the weak conductivity required by the electrospinning substrate, adding titanium dioxide particles with a mass fraction of 0.2% and 20nm to the polypropylene slice;

[0027] b) Process the meltblown fiber layer in the following order: drying→melt mixing→extrusion→air stretching→cooling and solidification→meltblown fiber layer;

[0028] c) adding silver particles with a mass fraction of 0.5% and 10nm in the polyvinylidene fluoride solution system;

[0029] d) using the meltblown fiber layer as the nanofiber receiving substrate in the electrospinning process;

[0030] e) Process the nanofiber layer as follows: solutio...

Embodiment 2

[0038] Embodiment 2, a kind of preparation method of antistatic melt-blown composite antibacterial nanofiber nonwoven fabric, carry out melt mixing, melt-blown spinning, solution mixing, electrospinning successively, promptly carry out the following steps successively:

[0039] a) According to the mixing characteristics between the nanoparticles and the polypropylene, and the weak electrical conductivity required by the electrospinning substrate, adding nano silver particles with a mass fraction of 0.2% and 20nm to the polypropylene slice;

[0040] b) Process the meltblown fiber layer in the following order: drying→melt mixing→extrusion→air stretching→cooling and solidification→meltblown fiber layer;

[0041] c) adding silver particles with a mass fraction of 0.5% and 10nm in the polyvinylidene fluoride solution system;

[0042] d) using the meltblown fiber layer as the nanofiber receiving substrate in the electrospinning process;

[0043] e) Process the nanofiber layer as fo...

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Abstract

The invention discloses a preparation method of an antistatic melt-sprayed composite antibacterial nanofiber non-woven fabric. A composite non-woven fabric layer with the gradient fiber diameter is prepared by adopting a method of combining electrostatic spinning and melt-sprayed spinning. Meanwhile, an antistatic agent and an antibacterial agent are added into a melt-sprayed material, and an antibacterial agent is added into an electrostatic spinning solution. By controlling the thickness of the melt-sprayed non-woven fabric and the thickness of the electrostatic spinning fiber layer, the composite melt-sprayed non-woven air filtering material which is antibacterial, antistatic and efficient in filtering is prepared. The technology is simple and easy to implement, the filtering performance of the polypropylene melt-sprayed non-woven fabric is improved, and meanwhile, the filtering material is endowed with antibacterial and antistatic performance.

Description

technical field [0001] The invention relates to the technical field of nonwoven materials, in particular to an antistatic meltblown composite antibacterial nanofiber nonwoven fabric and a preparation method thereof. Background technique [0002] Melt-blown nonwoven fabric is a randomly arranged fiber layer with a fiber diameter of 1-5 microns produced by melt-blown technology. The high specific surface area of ​​these fibers and the tiny pore size between fibers can effectively absorb and intercept tiny solid particles. Therefore, it is widely used in the fields of air filtration and water filtration. [0003] However, in terms of adsorption and interception of finer particles and reduction of air resistance, melt-blown nonwovens still cannot achieve breakthroughs. In order to solve this problem, patent 201610389945.6 introduces the use of hot air to composite nanofibers and nonwovens; patent 201710617365.2 introduces the use of hot pressing to composite meltblown nonwovens...

Claims

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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Application Information

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IPC IPC(8): B01D39/08B01D39/14B01D46/54B01D46/00B01D46/50
CPCB01D39/08B01D39/14B01D46/0001B01D46/0028B01D46/50B01D46/546B01D2239/0442B01D2239/0631B01D2239/0636
Inventor 尤健明祝国成孙成磊
Owner TONGXIANG JIANMIN FILTER MATERIALS
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