Preparation method of graphene antibacterial melt-blown cloth and application thereof

A technology of graphene and melt-blown cloth, which is applied in application, melt spinning, non-woven fabrics, etc., can solve the problems of reduced filtration function, prolonged use of masks, and reduced filtration efficiency, and achieves improved lipophilicity and good bactericidal effect , the effect of reducing hydrophilicity

Inactive Publication Date: 2020-09-08
青岛领军新材料科技创新园发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional mask is a two-way breathable mask, the effective use time of the traditional mask is 4 hours, and the filtering function will be significantly reduced after 4 hours, and the melt-blown cloth prepared by the preparation method of the graphene antibacterial melt-blown cloth provided by the present invention can be applied to prepare The new graphene antibacterial mask, the use time of the prepared mask is greatly extended, the effective use time of the new graphene mask is more than 48 hours, which is more than 10 times that of the traditional mask, and the new graphene antibacterial mask can be worn continuously for 48 hours After the filter efficiency is only reduced by 4%

Method used

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  • Preparation method of graphene antibacterial melt-blown cloth and application thereof
  • Preparation method of graphene antibacterial melt-blown cloth and application thereof

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Effect test

Embodiment 1

[0027] A preparation method of graphene antibacterial melt blown cloth, the preparation method of described graphene antibacterial spray cloth comprises the following preparation steps:

[0028] Step 1, preparation of modified polypropylene resin: first place the silica in a vacuum drying oven and dry it under vacuum at 125°C for 10 hours, weigh 10g of nano-silica and add it to a 500mL three-neck flask, then add 250mL of toluene, and use a magnetic force to Stir it evenly with a stirrer; then weigh 5% of the KH560 coupling agent by mass of silica and add it to a clean and dry three-necked flask, use an ultrasonic mixer to oscillate and disperse for 15 minutes, and place the mixed solution in a water bath reflux reaction device , reacted at 100°C for 2.0 h, washed with absolute ethanol and filtered, and dried for use; finally, fully dried modified and unmodified nano-silica were mixed in a molar ratio of 1:1 , to obtain mixed nano-silica, and then mix the mixed nano-silica and ...

Embodiment 2

[0042] A preparation method of graphene antibacterial melt blown cloth, the preparation method of described graphene antibacterial spray cloth comprises the following preparation steps:

[0043] Step 1, preparation of modified polypropylene resin: first place the silica in a vacuum drying oven and dry it in vacuum at 130°C for 9 hours, weigh 10g of nano-silica and add it to a 500mL three-neck flask, then add 280mL of toluene, use magnetic Stir it evenly with a stirrer; then weigh 5.5% KH560 coupling agent by mass of silica and add it into a clean and dry three-necked flask, use an ultrasonic mixer to vibrate and disperse for 18 minutes, and place the mixed solution in a water bath reflux reaction device , reacted at 100°C for 2.0 h, washed with absolute ethanol and filtered, and dried for use; finally, fully dried modified and unmodified nano-silica were mixed in a molar ratio of 1:1 , to obtain mixed nano-silica, and then mix the mixed nano-silica and polypropylene slices eve...

Embodiment 3

[0057] A preparation method of graphene antibacterial melt blown cloth, the preparation method of described graphene antibacterial spray cloth comprises the following preparation steps:

[0058] Step 1, preparation of modified polypropylene resin: first place the silica in a vacuum drying oven and dry it under vacuum at 135°C for 8 hours, weigh 10g of nano-silica and add it to a 500mL three-neck flask, then add 300mL of toluene, and use a magnetic Stir it evenly with a stirrer; then weigh 6% KH560 coupling agent of silica mass and add it into a clean and dry three-necked flask, use an ultrasonic mixer to oscillate and disperse for 20 minutes, and place the mixed solution in a water bath reflux reaction device , reacted at 100°C for 2.5 hours, washed with absolute ethanol and filtered, and dried for use; finally, fully dried modified and unmodified nano-silica were mixed in a molar ratio of 1:1 , to obtain mixed nano-silica, and then mix the mixed nano-silica and polypropylene ...

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Abstract

The invention discloses a preparation method of graphene antibacterial melt-blown cloth and application thereof. The preparation method comprises the following preparation steps of preparing modifiedpolypropylene resin, taking materials and carrying out weighing, mixing the materials, and carrying out melt extrusion, filtering, spinning, melt-blown fiber cloth forming, cutting, packaging and sealing for storage. The graphene antibacterial melt-blown cloth is applied to the field of processing and preparation of medical surgical masks. The preparation method disclosed by the invention is scientific and simple in process flow and can be widely popularized and produced in the industry; in addition to a two-dimensional carbon nano material with relatively strong antibacterial property, the melt-blown cloth is also added with bactericidal substances such as titanium dioxide and zinc oxide, so that the bactericidal effect of the material is further enhanced; the service time of a mask prepared by utilizing the graphene antibacterial melt-blown cloth is greatly prolonged, the effective service time of a novel graphene mask exceeds 48 hours and is more than 10 times that of a traditionalmask, and the filtering efficiency of the novel graphene antibacterial mask is only reduced by 4% after the novel graphene antibacterial mask is continuously worn for 48 hours.

Description

technical field [0001] The invention relates to the technical field of melt-blown cloth, in particular to a preparation method and application of graphene antibacterial melt-blown cloth. Background technique [0002] Graphene is a two-dimensional multifunctional nanomaterial composed of a single layer of carbon atoms. It has excellent optical, electrical, and mechanical properties. It has important application prospects in the fields of aerospace, energy, and biomedicine. It is recognized by scientists as the next A generation of revolutionary and strategic materials, graphene and its derivatives have excellent broad-spectrum antibacterial and antiviral capabilities, good biocompatibility, and simple preparation processes. [0003] Melt-blown cloth is the key filter layer of ordinary masks. Graphene antibacterial melt-blown cloth is a new type of protective mask formed by the innovative application of graphene polypropylene melt-blown cloth material. Compared with ordinary m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H3/005D01D5/08D01D1/00D01D1/10D01F1/10D01F8/06D01F8/14A41D13/11
CPCA41D13/11D01D1/00D01D1/106D01D5/08D01F1/10D01F1/103D01F8/06D01F8/14D04H1/4382D04H3/005D10B2401/13
Inventor 聂传凯李香祖
Owner 青岛领军新材料科技创新园发展有限公司
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