Allochroic silica gel mask capable of representing electrostatic adsorption capacity

A technology of color-changing silica gel and electrostatic adsorption, which is used in material analysis, clothing, and chemical reaction of materials by observing the impact on chemical indicators. It also has the problems of anti-virus effect and reduction of electrostatic adsorption effect, so as to achieve excellent adsorption and filtration effect, excellent filtration and adsorption capacity, and improve the effect of effective use time.

Pending Publication Date: 2020-08-14
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Experiments have shown that the electrostatic adsorption effect of the polypropylene electret on the melt-blown cloth layer of the mask will be greatly reduced after the humidity increases, that is, the mask will no longer have a good anti-virus effect
At the same time, if the mask is stored for a long time, its electrostatic adsorption effect may be r

Method used

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  • Allochroic silica gel mask capable of representing electrostatic adsorption capacity
  • Allochroic silica gel mask capable of representing electrostatic adsorption capacity
  • Allochroic silica gel mask capable of representing electrostatic adsorption capacity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A color-changing silicone mask that can characterize the electrostatic adsorption capacity provided in this embodiment includes: a mask body 6 , a mask belt 7 and a variable bead 8 . The mask body 6 includes a four-layer structure from the outside to the inside, which are the outer layer 1 of transparent non-woven fabric, the layer 2 of color-changing silica gel, the layer 3 of melt-blown cloth and the inner layer 4 of non-woven fabric.

[0038] (1) Use a humidifier to simulate mouth and nose breathing, and measure the ambient relative humidity at room temperature before humidification to be 5%;

[0039] (2) Test the electrostatic charge of the melt-blown cloth layer of the medical mask at the humidity;

[0040] (3) Take 15g of color-changing silica gel beads and place them in (2) on the outer layer of the melt-blown cloth and cover them with transparent non-woven fabric, observe and record the degree of discoloration.

Embodiment 2

[0042] A color-changing silicone mask that can characterize the electrostatic adsorption capacity provided in this embodiment includes: a mask body 6 , a mask belt 7 and a variable bead 8 . The mask body 6 includes a four-layer structure from the outside to the inside, followed by a color-changing silica gel layer 2, a transparent non-woven outer layer 1, a melt-blown cloth layer 3 and a non-woven inner layer 4.

[0043] (1) Use a humidifier to simulate mouth and nose breathing, and adjust the relative humidity of the environment to be 20%;

[0044] (2) Test the electrostatic charge of the melt-blown cloth layer of the medical mask at the humidity;

[0045] (3) Take 15g of color-changing silica gel beads and place them in (2) on the outer layer of the melt-blown cloth and cover them with transparent non-woven fabric, observe and record the degree of discoloration.

Embodiment 3

[0047] A color-changing silicone mask that can characterize the electrostatic adsorption capacity provided in this embodiment includes a mask body 6 , a mask belt 7 and a variable bead 8 . The mask body 6 includes a four-layer structure from the outside to the inside, which are the outer layer 1 of transparent non-woven fabric, the layer 2 of color-changing silica gel, the layer 3 of melt-blown cloth and the inner layer 4 of non-woven fabric.

[0048] (1) Use a humidifier to simulate mouth and nose breathing, and adjust the relative humidity of the environment to be 35%;

[0049] (2) Test the electrostatic charge of the melt-blown cloth layer of the medical mask at the humidity;

[0050] (3) Take 15g of color-changing silica gel particles and place them in (2) on the outer layer of the melt-blown cloth and cover the transparent non-woven fabric, observe and record the degree of discoloration.

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Abstract

The present invention discloses an allochroic silica gel mask capable of representing the electrostatic adsorption capacity which comprises an allochroic silicagel layer, the allochroic silicagel layer is arranged on a mask body, and the allochroic silicagel layer can change color according to humidity and is used for representing the electrostatic adsorption capacity of the surface of the mask. The electrostatic adsorption performance of the mask is indirectly sensed through visual change of the color change degree of the allochroic silicagel, used materials are non-toxic, environmentally friendly, harmless to the human body, simple in structure, convenient to use and operate and wide in market application prospect.

Description

technical field [0001] The invention belongs to the technical field of characterizing the electrostatic adsorption of masks, and in particular relates to a color-changing silica gel mask which can characterize the electrostatic adsorption capacity. Background technique [0002] Due to the outbreak of new coronary pneumonia, masks with electrostatic adsorption capabilities have become a necessity to resist viruses. Medical personnel and ordinary people need to wear masks. People's mouth and nose are in close contact with the masks, and the humidity of the masks will inevitably increase during breathing. Experiments have shown that the electrostatic adsorption effect of the polypropylene electret on the melt-blown cloth layer of the mask will be greatly reduced after the humidity increases, that is, the mask will no longer have a good antiviral effect. At the same time, long-term storage of masks may also reduce their electrostatic adsorption effect due to moisture absorption...

Claims

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Application Information

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IPC IPC(8): A41D13/11A41D27/00A41D27/24A41D31/02A41D31/12A41D31/14G01N21/78
CPCA41D13/1115A41D27/00A41D27/24A41D31/02A41D31/12A41D31/145G01N21/78
Inventor 杨超卢亚飞吴晓东韩晓刚邱爱慈
Owner XI AN JIAOTONG UNIV
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